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Panasonic BK-3HCCA4BA eneloop pro AA High-Capacity Ni-MH Pre-Charged Rechargeable Batteries, 4-Battery Pack

4.7 4.7 out of 5 stars 11,216 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in AA Batteries by Panasonic

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Purchase options and add-ons

Number of Batteries 4 Lithium Ion batteries required. (included)
Brand Panasonic
Battery Cell Composition NiMH
Compatible Phone Models The APC UPS Battery Replacement, RBC35, is specifically designed for use with APC Back-UPS models BE350G and BE350C. These battery backup units are commonly used for providing power protection to various devices, including computers, routers, and other electronics. Therefore, if you own an APC Back-UPS BE350G or BE350C, the RBC35 battery replacement is compatible with your device. See more

About this item

  • EXTREMELY POWERFUL NiMH RECHARGEABLE BATTERIES: eneloop pro AA high capacity Ni-MH pre-charged rechargeable battery deliver up to 2500mAh typical, 2450mAh minimum
  • LONG LASTING PERFORMANCE: Recharge eneloop pro AA rechargeable batteries up to 500 times
  • PRE-CHARGED AND READY TO USE: eneloop pro AA rechargeable batteries are pre-charged at the factory using solar power and maintain up to 85% of their charge after 1 year (when not it use)
  • SECURE, PROTECTIVE PACKAGING: This package contains 4 eneloop pro AA rechargeable batteries
  • EXTREME TEMPERATURES: eneloop pro rechargeable batteries can used in extreme temperatures, down to -4 deg F.
  • QUALITY YOU CAN TRUST: These eneloop pro rechargeable AA batteries are made in Japan and packaged in the United States
  • HUNDREDS OF HOUSEHOLD DEVICES: Perfect for use in hundreds of household devices, these eneloop pro AA rechargeable batteries can be used in remote flashlights, toys, digital camera flash units, game controllers and more

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From the manufacturer

Panasonic eneloop pro AA AAA Batteries New
Panasonic eneloop pro AA AAA batteries Increased Capacity
Panasonic eneloop pro AA AAA batteries 500 Times

Panasonic eneloop pro AA AAA batteries maintain charge

Panasonic eneloop pro AA AAA batteries special

Panasonic eneloop pro AA AAA batteries solar

Panasonic eneloop pro AA AAA batteries low temperature

eneloop pro High Capacity Ni-MH rechargeable batteries utilize Panasonic’s advanced cell technology which delivers increased capacity for high drain devices (when unused and properly stored).

eneloop batteries use a highly durable super lattice alloy which prolongs the life of the material. This improvement increases hydrogen stability resulting in reduced self discharge and long lasting, stable voltage output.

eneloop and eneloop pro rechargeable batteries are pre-charged at the factory in Japan using power generated from solar energy. This process is certified by The Green Energy Certification Center.

Keep your tactical flashlights, headlamps, walkie-talkie radios and other devices powered in the winter. eneloop and eneloop pro batteries deliver exceptional performance at extreme temps, down to –4 degree F.

Panasonic eneloop pro CC17 Charger Panasonic eneloop pro CC75 Charger Panasonic eneloop pro CC55 Charger Panasonic eneloop pro CC87 Charger Panasonic eneloop pro CC65 Charger
4 Position Advanced 4 Position Advanced w/USB 4 Position Advanced Quick 4 Position Advanced Quick w/Mobile Charging Technology 4 Position Professional Quick Charge and Discharge Technology
Customer Reviews
4.6 out of 5 stars
591
4.5 out of 5 stars
66
4.7 out of 5 stars
1,609
4.5 out of 5 stars
54
4.6 out of 5 stars
192
Model # BQ-CC17KSBA BQ-CC75KSBHA BQ-CC55KSBHA BQ-CC87AKBBA BQ-CC65AKBBA
Battery Charging Capability Individual;1-4 AA and/or AAA batteries Individual;1-4 AA and/or AAA batteries Individual;1-4 AA and/or AAA batteries Individual;1-4 AA and/or AAA batteries Individual;1-4 AA and/or AAA batteries
LED / LCD Lights 4 LED 4 LED 4 LED w/charge fuel gauge 4 LED w/charge fuel gauge 4 LCD w/charge fuel gauge
Charging Time AA (2550mAh) AA4:9h/AA2:4.5h; (2000mAh) AA4:7h/AA2:3.5h (2550mAh) AA4:9h/AA2:4.5h; (2000mAh) AA4:7h/AA2:3.5h (2550mAh) AA4:4h/AA2:2h; (2000mAh) AA4:3h/AA2:1.5h (2550mAh) AA4:6h/AA2:3h; (2000mAh)AA4:4.25h/AA2:2.25h (2550mAh) AA4:4h/AA2:2h; (2000mAh)AA4:3h/AA 1.5h
Charging Time AAA (950mAh) AAA4:7h/AAA2:3.5h (800mAh) AAA4: 6h / AAA2:3h (950mAh) AAA4:7h/AAA2:3.5h (800mAh) AAA4: 6h / AAA2:3h (950mAh) AAA4:4h/AAA2:2h (800mAh) AAA4:2h / AAA2:1h (950mAh) AAA4:4.5h / AAA2:2.25h;(800mAh) AAA4:4h / AAA2:2h (950mAh) AAA4:4h / AAA2:2h;(800mAh) AAA4:3h / AAA2:1.5h
USB Charging Port No Yes No Yes; Also includes Mobile Power charging technology Yes
Discharge / Refresh Mode No No No No Yes
Safety Technology Short Circuit & Input Voltage Detection/Auto Shut Off Short Circuit & Input Voltage Detection/Auto Shut Off Short Circuit & Input Voltage Detection/Auto Shut Off Short Circuit & Input Voltage Detection/Auto Shut Off Short Circuit & Input Voltage Detection/Auto Shut Off
Voltage AC 100-240V 50/60Hz AC 100-240V 50/60Hz AC 100-240V 50/60Hz AC 100-240V 50/60Hz Input DC 5V 1A AC 100-240V 50/60Hz
Safety Standards ETL Certified (control # 5003545; standard Class 2 Outputs [CSA C22.2#223:2015 Ed.3] April 24, 2018]) ETL Certified (control # 5003545; standard Class 2 Outputs [CSA C22.2#223:2015 Ed.3] April 24, 2018]) ETL Certified (control # 5003545; standard Class 2 Outputs [CSA C22.2#223:2015 Ed.3] April 24, 2018]) ETL Certified (control # 5003545; standard Class 2 Outputs [CSA C22.2#223:2015 Ed.3] April 24, 2018]) ETL Certified (control # 5003545; standard Class 2 Outputs [CSA C22.2#223:2015 Ed.3] April 24, 2018])

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Price-10% $22.57
List:$24.99
$108.48$25.98$68.99$11.39
Delivery
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it Apr 3 - 5
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Customer Ratings
Battery life
4.6
4.3
4.3
3.8
Remote Control
4.5
4.8
4.5
3.9
Longevity
4.4
4.5
4.6
3.6
Value for money
4.3
4.3
4.5
3.9
Durability
4.7
4.6
4.1
Sold By
Amazon.com
Amazon.com
MYBATTERYSUPPLIER
Amazon.com
Amazon.com
capacity
950 milliampere hour
2600 milliamp hours
2500 milliamp hours
950 milliampere hour
battery quantity
4 lithium ion, 4 aa, 4 product specific
24 aa
4 aa, 4 product specific
12 aa
20 aa, 20 aaa
voltage
1.2 volts
1.5 volts
1.2 volts
1.5 volts
1.5 volts
reusability
Rechargeable
Rechargeable
Rechargeable
Rechargeable
Single Use
compatible devices
Solar
Solar, Toy, Controller, Torch, Camera, Remote
Radio
Solar, Toy, Controller, Torch, Camera, Remote
Clock, Toy, Controller, Torch, Camera

Product guides and documents

What's in the box

  • Panasonic Eneloop Rechargeable XX Batteries (AA; 4 pk) 1 count
  • Product information

    Warranty & Support

    Product Warranty: For warranty information about this product, please click here. [PDF ]

    Feedback

    Panasonic

    Panasonic BK-3HCCA4BA eneloop pro AA High-Capacity Ni-MH Pre-Charged Rechargeable Batteries, 4-Battery Pack


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    Product Description

    Product Description

    eneloop pro AA and AAA NiMH ready to use rechargeable batteries utilize Panasonic advanced rechargeable battery technology, allowing them to be recharged up to 500 times. eneloop AA and AAA rechargeable batteries deliver consistent extreme power performance, maintain 85% of their charge for up to 1 year (when not in use), come pre-charged by solar power (at the factory) and are ready to use out of the package. These eneloop batteries also feature extreme temperature performance down to -4 deg F. Pair eneloop and eneloop pro AA and AAA batteries with Panasonic advanced, quick advanced, or super quick advance eneloop or eneloop pro chargers to maximize your rechargeable battery experience.

    Amazon.com

    Panasonic eneloop pro High Capacity Ni-MH “Low Self Discharge” rechargeable batteries, BK-3HCCA4BA. Package contains 4 (AA) eneloop pro cells which deliver increased power capacity for high power consumption devices. These battery cells are ideal for products like digital camera (DSLR) flash units, remote control toys, and tactical flashlights.

    Customer reviews

    4.7 out of 5 stars
    4.7 out of 5
    11,216 global ratings

    Customers say

    Customers like the quality, performance, and value of the rechargeable battery. For example, they mention that it lasts an extremely long time, works perfectly, and is worth the price. Customers are also impresseded with the capacity, and versatility. That said, opinions are mixed on charging.

    AI-generated from the text of customer reviews

    322 customers mention269 positive53 negative

    Customers like the quality of the rechargeable batteries. They say they last an extremely long time, give a solid 20+ hours of charge, and are reliable. Customers also say that the batteries feel like quality product and do not come off as cheap.

    "...Additionally, with a cycle life of 2,100, this battery has serious longevity (literally the service life is four times that of the XX or Pro.)..." Read more

    "...only a minimal drop in their performance, making them a superb long-term investment for those tired of constantly repurchasing disposable..." Read more

    "...The capacity is even slightly higher than stated. Excellent quality." Read more

    "...to get these and they are such a great upgrade they long weeks for my xbox controllers and for other controllers havent needed to charge these for a..." Read more

    288 customers mention265 positive23 negative

    Customers are satisfied with the battery life of the product. They mention that it is the best rechargeable battery for devices with high power needs, and it holds charge after being removed from the charger. Some say that the batteries are functional after just one charge and never need recharging.

    "...the finest of disposable alkaline batteries and can be charged thousands of times...." Read more

    "...got these for my Xbox controller and they are, by far, the best batteries I've ever used...." Read more

    "...First set purchased 2015 . They lasted along time. Great batteries" Read more

    "Nicest Batteries I have ever owned." Read more

    220 customers mention194 positive26 negative

    Customers like the performance of the battery. They say it charges very quickly, works perfectly for a very long time, and has no problems. Customers also say it's an excellent, long-lasting, rechargeable battery that is dependable and works well in both hot and cold conditions. They mention that it works great for Xbox controllers and lasts a week with average use few hours a day.

    "...in your car, these batteries are hard to beat given they work well in both hot-hot and cold-cold, and temperature extremes will not wreck your..." Read more

    "...After numerous charge cycles, I've noticed only a minimal drop in their performance, making them a superb long-term investment for those tired of..." Read more

    "...Knowing eneloops I know these batteries will perform great for years to come." Read more

    "Durable and amazing" Read more

    106 customers mention75 positive31 negative

    Customers like the value of the battery. For example, they say it's worth the price, saves them a lot of money, and is reliable. Some mention that the battery is insanely valuable for their speedlites and is worth it for long time use.

    "...eneloop Pro is the balanced choice of outstanding performance, outstanding value, and outstanding longevity. There really is no substitute." Read more

    "...By reducing the need for disposable batteries, they not only save me money but also minimize environmental waste. It's a win-win!..." Read more

    "So far these are the best rechargeable batteries I've found. Expensive, but worth it, in my opinion...." Read more

    "...They don't leak like alkaline batteries and cost much less in the long run, although I do use Energizer Lithium AA from time to time when it's not..." Read more

    41 customers mention41 positive0 negative

    Customers are satisfied with the capacity of the battery. They mention that it provides all the power they need to work quickly, and is a high-capacity battery. Some say that the battery has a long time on each charge and is capable of handling all types of devices. Overall, customers are happy with the performance and capacity of these rechargeable batteries.

    "...THE 2100 --- The standard eneloop 2100 is designed to be a high-capacity battery that is capable of handling all but the worst of high drain devices...." Read more

    "...The capacity is even slightly higher than stated. Excellent quality." Read more

    "...The overall capacity is higher with Pro but it's still important to be aware of the differences before you buy...." Read more

    "...were, I bought them because they are highly rated batteries with a high capacity...." Read more

    18 customers mention18 positive0 negative

    Customers like the versatility of the battery. They say it's great for game controllers, camera gear, and aviation headsets. Some mention that it'll last a long time and is perfect for their Apple Magic Mouse.

    "...They're great for my Quest 3 controllers and with the 4-pack I always have2 batteries standing by" Read more

    "Great for my Logitech G700s and other laptops mice I have.Will buy again." Read more

    "I used these batteries right out of the package and was able to shoot several hundred photos with my DSLR's external flash...." Read more

    "...power, very fast recycle times even at full power, and lots and lots of shots on each set." Read more

    16 customers mention16 positive0 negative

    Customers are satisfied with the recovery time of the battery. They mention that it provides consistent power, has very fast recycle times, and re-cycling is instant. The batteries recover faster and the charge lasts longer than any other in their collection. They also say the time between charges is significant and definitely seems to last longer.

    "...For what it's worth, time between charges was significant and definitely seemed to last longer than cheaper disposables...." Read more

    "...Because you save a lot of time and trouble breaking apart every time, recharge and return ......" Read more

    "...The recycle time on my flash is faster than any other. I haven’t had to charge them yet and began using them right out of the package...." Read more

    "Using them in an Altura Flash on my Nikon D3200.Fast recovery time...." Read more

    81 customers mention45 positive36 negative

    Customers are mixed about the charging of the batteries. Some mention that they charge quickly and hold charge for a very long time, while others say that they didn't come fully charged and would only charge to about 1300mah.

    "...still a great choice for when you need stabile batteries, great run times and performance...." Read more

    "...6 years passed and the unit started beeping, indicating low power. Time to get the ladder and replace batteries...." Read more

    "...long lasting power in my portable shortwave radios and recharge at a reasonable rate in the charger that came with a different set of eneloop pros I..." Read more

    "...Although they didn't come fully charged, they did work immediately and this was more than made up by the quality of the batteries...." Read more

    OUTSTANDING - eneloop = Consistent, Reliable, Durable & Capable. This Pro allows great runtimes on even the highest-drain device
    5 Stars
    OUTSTANDING - eneloop = Consistent, Reliable, Durable & Capable. This Pro allows great runtimes on even the highest-drain device
    The eneloop Pro follows the long-standing eneloop tradition of NiMH batteries that run circles around most of the competition. This eneloop Pro battery is NOT designed for general usage, but rather high-drain applications. When paired with these high-drain applications, the Pro excels in a fashion that few other batteries can, giving you performance that other NiMH rechargeable and disposable alkaline AA batteries cannot provide.-------------------------BACKGROUND & WHAT USAGE THE ENELOOP PRO IS INTENDED FOREneloop is considered by many to be the tour-de-force of rechargeable NiMH cells (much like Panasonic is with lithium ion cells.) Gone are the days where NiMH cells did not give performance that came even close to alkaline. Things like memory, low service lives, rapidly fading capacity, etc. are over. Today we have NiMH cells that can dramatically outperform the finest of disposable alkaline batteries and can be charged thousands of times. Over a 10+ year period, you can save thousands of dollars with a good NiMH setup.The eneloop Pro is eneloop’s (formally Sanyo and now Panasonic) follow-up to their highly successful eneloop XX series. Like the XX, the eneloop Pro is a SPECIALTY battery. It is NOT intended for usage with lower drain applications, and performs poorly when used for this purpose. However, when used in high-drain applications that tend to be brutal on the battery, the eneloop Pro gives unparalleled runtime that no alkaline can come even close to.-------------------------THE STANDARD ENELOOP 2100 VS THE ENELOOP PRO: Which is right for you?Eneloop’s newest innovation is 4th generation NiMH cells. Like previous generations, eneloop is offering a standard-use and a high-drain model. These eneloop Pros use 4th gen technology, as do the standard eneloop “2100”. This fourth gen technology gives both batteries a very wide operating temp range, improved stability in output, slower self-discharge, and increases in durability.Eneloop Pro SPECS:-Capacity: 2550 mAh-Service Life: up to 500 recharge cycles-Rate of self-discharge: about 85% capacity remaining at 1 year of storageEneloop 2100 SPECS:-Capacity: 2000 mAh-Service Life: up to 2100 recharge cycles-Rate of self-discharge: Over 70% capacity remaining at 5 years of storage-A substantial performance improvement with high-drain devices vs. the third genTHE 2100 --- The standard eneloop 2100 is designed to be a high-capacity battery that is capable of handling all but the worst of high drain devices. This battery makes substantial improvements over the third generation when it comes to handling higher-drain devices. It is ultra-low discharge (literally now it discharges SLOWER than many disposable batteries!) and high capacity at about 2000 mAh. This battery works great in both low drain and high drain apps. Additionally, with a cycle life of 2,100, this battery has serious longevity (literally the service life is four times that of the XX or Pro.) Because of this, most household devices should use this standard eneloop 2100. While it has a lower capacity than the eneloop Pro, the slower self-discharge and the ability to work better with low-drain devices will give better performance than the Pro with most devices. So if you are not using a device in which you constantly have to switch batteries out, the 2100 is what you want. The picture I uploaded shows a basic remote and Logitech wireless mouse; those devices get the best performance from the 2100s because they are not high-drain devices and so I use them exclusively in those devices.THE PRO --- However, there are some devices that are just plain brutal on batteries. These will benefit greatly from the Pro (or XX) design. For example, in my picture you can see a Fenix LED flashlight and a wireless gaming mouse. These devices put a world of hurt on batteries and run times are measured in hours. The eneloop Pro makes substantial improvements over the already outstanding 2100 in this sort of application. Cameras, audio players, high-output flashlights, medical devices, lasers, etc. will benefit here.So which battery you need completely depends on your application. I own 4 XXs and 4 Pros to go along with about 20+ 2100s. I use my 2100s for standard applications, and the XX or Pro for high-drain devices.-------------------------WHAT I LIKELike eneloops of the past, one thing that makes the brand unique is their advertising. Many battery makers advertise their batteries as having a MUCH higher capacity than they actually do. For example, I purchased 2500 mAh Tenergy batteries and brand new they only had a capacity of about 1700 mAh, and then rapidly shrank from there. I have had similar experiences with both Duracell and Energizer rechargeable cells. Eneloop guarantees each and every battery will meet their minimum mAh rating, and as a general rule all batteries exceed these ratings by a substantial margin. With these Pros, I purchased a 2550 mAh battery and I got a 2550 mAh battery. Additionally, eneloops do not rapidly shrink in capacity like other brands. Fives years or ten years down the line, these batteries will still work great if cared for. This longevity makes eneloop a much better value than inferior NiMH cells: spend a few extra bucks on eneloop today and enjoy their superior performance for years to come while simultaneously saving money.Eneloop also sends their batteries pre-charged (and they were charged by solar energy.) With the low self-discharge of the Pro, and the extremely low self-discharge of the 2100, you can use these batteries immediately after purchasing them.While the third generation batteries did a great job with colder temperatures, these 4th generation 2100s and Pros are outstanding. If you want to keep a flashlight in your car, these batteries are hard to beat given they work well in both hot-hot and cold-cold, and temperature extremes will not wreck your service life.-------------------------CONCLUSION: WHAT I LIKE THE MOSTUltimately, there are two things I like about this battery the most. One, I save a ton of money over disposable batteries. I am talking thousands of dollars while simultaneously supporting environmentally friendly technology. Two, I get better performance from these eneloops and can use my devices longer. As of mid-2015, this is really THE battery to have for your high-drain devices (and the eneloop 2100 is really THE battery to have for your general-use devices.) So I highly recommend the eneloop Pro, as do I recommend the eneloop 2100 and eneloop as a company.If you are looking for a battery that gives you optimal performance with your high-drain devices, but would prefer an alternative to expensive lithium disposables, the eneloop Pro is the balanced choice of outstanding performance, outstanding value, and outstanding longevity. There really is no substitute.
    Thank you for your feedback
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    Top reviews from the United States

    Reviewed in the United States on April 18, 2015
    Customer image
    5.0 out of 5 stars OUTSTANDING - eneloop = Consistent, Reliable, Durable & Capable. This Pro allows great runtimes on even the highest-drain device
    Reviewed in the United States on April 18, 2015
    The eneloop Pro follows the long-standing eneloop tradition of NiMH batteries that run circles around most of the competition. This eneloop Pro battery is NOT designed for general usage, but rather high-drain applications. When paired with these high-drain applications, the Pro excels in a fashion that few other batteries can, giving you performance that other NiMH rechargeable and disposable alkaline AA batteries cannot provide.
    -------------------------

    BACKGROUND & WHAT USAGE THE ENELOOP PRO IS INTENDED FOR
    Eneloop is considered by many to be the tour-de-force of rechargeable NiMH cells (much like Panasonic is with lithium ion cells.) Gone are the days where NiMH cells did not give performance that came even close to alkaline. Things like memory, low service lives, rapidly fading capacity, etc. are over. Today we have NiMH cells that can dramatically outperform the finest of disposable alkaline batteries and can be charged thousands of times. Over a 10+ year period, you can save thousands of dollars with a good NiMH setup.

    The eneloop Pro is eneloop’s (formally Sanyo and now Panasonic) follow-up to their highly successful eneloop XX series. Like the XX, the eneloop Pro is a SPECIALTY battery. It is NOT intended for usage with lower drain applications, and performs poorly when used for this purpose. However, when used in high-drain applications that tend to be brutal on the battery, the eneloop Pro gives unparalleled runtime that no alkaline can come even close to.
    -------------------------

    THE STANDARD ENELOOP 2100 VS THE ENELOOP PRO: Which is right for you?
    Eneloop’s newest innovation is 4th generation NiMH cells. Like previous generations, eneloop is offering a standard-use and a high-drain model. These eneloop Pros use 4th gen technology, as do the standard eneloop “2100”. This fourth gen technology gives both batteries a very wide operating temp range, improved stability in output, slower self-discharge, and increases in durability.

    Eneloop Pro SPECS:
    -Capacity: 2550 mAh
    -Service Life: up to 500 recharge cycles
    -Rate of self-discharge: about 85% capacity remaining at 1 year of storage

    Eneloop 2100 SPECS:
    -Capacity: 2000 mAh
    -Service Life: up to 2100 recharge cycles
    -Rate of self-discharge: Over 70% capacity remaining at 5 years of storage
    -A substantial performance improvement with high-drain devices vs. the third gen

    THE 2100 --- The standard eneloop 2100 is designed to be a high-capacity battery that is capable of handling all but the worst of high drain devices. This battery makes substantial improvements over the third generation when it comes to handling higher-drain devices. It is ultra-low discharge (literally now it discharges SLOWER than many disposable batteries!) and high capacity at about 2000 mAh. This battery works great in both low drain and high drain apps. Additionally, with a cycle life of 2,100, this battery has serious longevity (literally the service life is four times that of the XX or Pro.) Because of this, most household devices should use this standard eneloop 2100. While it has a lower capacity than the eneloop Pro, the slower self-discharge and the ability to work better with low-drain devices will give better performance than the Pro with most devices. So if you are not using a device in which you constantly have to switch batteries out, the 2100 is what you want. The picture I uploaded shows a basic remote and Logitech wireless mouse; those devices get the best performance from the 2100s because they are not high-drain devices and so I use them exclusively in those devices.

    THE PRO --- However, there are some devices that are just plain brutal on batteries. These will benefit greatly from the Pro (or XX) design. For example, in my picture you can see a Fenix LED flashlight and a wireless gaming mouse. These devices put a world of hurt on batteries and run times are measured in hours. The eneloop Pro makes substantial improvements over the already outstanding 2100 in this sort of application. Cameras, audio players, high-output flashlights, medical devices, lasers, etc. will benefit here.

    So which battery you need completely depends on your application. I own 4 XXs and 4 Pros to go along with about 20+ 2100s. I use my 2100s for standard applications, and the XX or Pro for high-drain devices.
    -------------------------

    WHAT I LIKE
    Like eneloops of the past, one thing that makes the brand unique is their advertising. Many battery makers advertise their batteries as having a MUCH higher capacity than they actually do. For example, I purchased 2500 mAh Tenergy batteries and brand new they only had a capacity of about 1700 mAh, and then rapidly shrank from there. I have had similar experiences with both Duracell and Energizer rechargeable cells. Eneloop guarantees each and every battery will meet their minimum mAh rating, and as a general rule all batteries exceed these ratings by a substantial margin. With these Pros, I purchased a 2550 mAh battery and I got a 2550 mAh battery. Additionally, eneloops do not rapidly shrink in capacity like other brands. Fives years or ten years down the line, these batteries will still work great if cared for. This longevity makes eneloop a much better value than inferior NiMH cells: spend a few extra bucks on eneloop today and enjoy their superior performance for years to come while simultaneously saving money.

    Eneloop also sends their batteries pre-charged (and they were charged by solar energy.) With the low self-discharge of the Pro, and the extremely low self-discharge of the 2100, you can use these batteries immediately after purchasing them.

    While the third generation batteries did a great job with colder temperatures, these 4th generation 2100s and Pros are outstanding. If you want to keep a flashlight in your car, these batteries are hard to beat given they work well in both hot-hot and cold-cold, and temperature extremes will not wreck your service life.
    -------------------------

    CONCLUSION: WHAT I LIKE THE MOST
    Ultimately, there are two things I like about this battery the most. One, I save a ton of money over disposable batteries. I am talking thousands of dollars while simultaneously supporting environmentally friendly technology. Two, I get better performance from these eneloops and can use my devices longer. As of mid-2015, this is really THE battery to have for your high-drain devices (and the eneloop 2100 is really THE battery to have for your general-use devices.) So I highly recommend the eneloop Pro, as do I recommend the eneloop 2100 and eneloop as a company.

    If you are looking for a battery that gives you optimal performance with your high-drain devices, but would prefer an alternative to expensive lithium disposables, the eneloop Pro is the balanced choice of outstanding performance, outstanding value, and outstanding longevity. There really is no substitute.
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    Reviewed in the United States on October 16, 2023
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    Reviewed in the United States on March 4, 2024
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    5.0 out of 5 stars Excellent, but pricey
    Reviewed in the United States on March 4, 2024
    We know that Eneloop is the best AA and AAA batteries in the world. In fact, I prefer white Eneloops, but this time I took the nuclear ones for the flashlights. The capacity is even slightly higher than stated. Excellent quality.
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    Reviewed in the United States on March 2, 2024
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    Reviewed in the United States on September 28, 2022
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    Reviewed in the United States on March 8, 2024
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    Kamila Siqueira
    5.0 out of 5 stars Pilhas muito boas
    Reviewed in Brazil on August 17, 2023
    One person found this helpful
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    AntonioMusic
    5.0 out of 5 stars Excelente
    Reviewed in Mexico on June 21, 2023
    Abel Biju
    5.0 out of 5 stars Good Rechargeable Batteries
    Reviewed in India on November 21, 2023
    Temo Canada
    5.0 out of 5 stars I received four genuine made in Japan Eneloop Pro AA's 2550 mAh
    Reviewed in Canada on February 13, 2020
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    Temo Canada
    5.0 out of 5 stars I received four genuine made in Japan Eneloop Pro AA's 2550 mAh
    Reviewed in Canada on February 13, 2020
    This is for the 4 pack of Panasonic BK3HCCA4BA Eneloop Pro AA's

    I ordered the four pack in November of 2019 from Amazon.ca and I received genuine Eneloop Pro's made in Japan 2550 mAh.

    I usually buy the regular Eneloop's but I wanted to try these in a high drain wireless illuminated keyboard that is left on about 18 hours a day. Regualr Eneloops gave me about 5 - 6 days. These are giving me about two to three days more per charge. After the first four recharges I used a LaCrosse BC1000 charger to do a drain recharge refresh cycle. The full cycle took three days and it does improve the performance of the battery. I've rechagred these as low as 100 mA and as high as 900, but 200 - 500 seems to offer the longest charge.

    For low drain devices the regular Eneloop's are fine. These are on the expensive side but worth it for high drain devices. They make a difference and I will be buying more in future.
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    Boston Den
    5.0 out of 5 stars Batteries
    Reviewed in the United Kingdom on June 17, 2019