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Panasonic BK-3HCCA4BA Eneloop Pro AA High Capacity Ni-MH Pre-Charged Rechargeable Batteries (Pack of 4)

4.6 out of 5 stars 988 customer reviews
| 104 answered questions

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Pro AA
4-Pack
  • 2550mAh type, 2450mAh min, Ni-MH High Capacity pre-charged rechargeable battery
  • Recharge up to 500 times
  • Maintain 85% of their charge up to 1 year (when not in use)
  • No memory effect - batteries can be recharged when fully, or partially discharged
  • Work in extreme temperatures down to -4 DegreeF
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Frequently Bought Together

  • Panasonic BK-3HCCA4BA Eneloop Pro AA High Capacity Ni-MH Pre-Charged Rechargeable Batteries (Pack of 4)
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  • AC to 12V DC Power Adapter Power Switching Port Power Converter Cord Cable by Tevina
Total price: $31.98
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Technical Details

Style: Pro AA | Size: 4-Pack
  • Brand Name: Panasonic
  • Model Number: BK-3HCCA4BA
  • Battery Type: NiMh
  • Item Package Quantity: 1

Product Description

Style: Pro AA | Size: 4-Pack

Product Description

The eneloop Pro Ni-Mh "low Self discharge" batteries utilize Panasonic advanced rechargeable battery technology. The eneloop Pro battery cells deliver consistent power performance, come pre-charged and are ready to use out of the Package. These eneloop cells also have increased power, added storage life and extreme temperature performance. The eneloop Pro, Ni-Mh rechargeable batteries feature added mAh power, making them the perfect choice for dslr flash units, game controllers and other devices that require additional power. While eneloop Pro batteries were designed to provide more power for high drain devices they will also perform well in conventional devices that require AA or AAA batteries.

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.

Product Information

Style:Pro AA  |  Size:4-Pack
Product Dimensions 1.2 x 3.4 x 4.2 inches
Item Weight 8.5 ounces
Shipping Weight 2.9 ounces (View shipping rates and policies)
Manufacturer SANYO
ASIN B00JHKSL28
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item can be shipped to select countries outside of the U.S. Learn More
Item model number BK-3HCCA4BA
Batteries 4 Nonstandard Battery batteries required. (included)
Customer Reviews
4.6 out of 5 stars 988 customer reviews

4.6 out of 5 stars
Best Sellers Rank #49 in Electronics > Accessories & Supplies > Batteries, Chargers & Accessories > Household Batteries > AA
Date first available at Amazon.com August 3, 2011

Warranty & Support

Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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From the Manufacturer

Capacity up to 2000mAh* up to 800mAh* up to 2550mAh* up to 950mAh*
Cycles/Recharges up to 2100 times** up to 2100 times** up to 500 times** up to 500 times**
Storage Life Holds 70% charge up to 10 years* Holds 70% charge up to 10 years* Holds 85% charge up to one year* Holds 85% charge up to one year*
Charged at the Factory using Solar Power Yes Yes Yes Yes
Low Temp Rating Down to -4 degrees F Down to -4 degrees F Down to -4 degrees F Down to -4 degrees F
Chemistry LSD Ni-MH LSD Ni-MH LSD Ni-MH LSD Ni-MH
Recyclable Yes Yes Yes Yes
Country of Origin Made in Japan Made in Japan Made in Japan Made in Japan

Customer Questions & Answers

Customer Reviews

Top Customer Reviews

By NLee the Engineer HALL OF FAMETOP 10 REVIEWER on December 22, 2015
Style Name: Pro AASize: 4-Pack
[Note: The following is an updated version for my original “Sanyo eneloop FAQ”, first published in May 2012]

I have been using eneloop low-self-discharge NiMH batteries since beginning of 2007, and I'm completely satisfied with them. One thing I noticed is that newcomers to the rechargeable battery arena often have similar questions/confusions about eneloop. So here is my list of eneloop Frequently Asked Questions. This list is work in progress.

[Q1] Why are there so many eneloop batteries with different capacity ratings and cycle-life numbers?
[A] There are actually three families of eneloop batteries:
- Standard version: The original Sanyo eneloop (circa 2006) was rated for capacity of 2000mAh typical for AA (800mAh for AAA) and 1000-cycle lifespan. Subsequent generations advertise longer lifespan (1500/1800/2100-cycles) at the same capacity. The charge retention rates have steadily extended from "85% after 1 year" to "90% after 1 year; 70% after 5 years"
(Refer to my uploaded photo on how to identify different generations of eneloop cells)
- High-Capacity version: The original Sanyo XX (circa 2010) was rated for 2500mAh but only 500 cycles. The charge-retention rate is slightly poorer at "75% after 1 year". Newer Panasonic eneloop PRO bumped the capacity to 2550mAh and charge-retention rate to "85% after 1 year".
- LITE version: Those have half the capacity of standard eneloop but twice the cycle life. They are not marketed in the US.

[Q2] Do I get better performance from the latest generation Panasonic eneloop cells verses earlier generation Sanyo eneloop cells?
[A] On paper, newer generation offers longer cycle life and lower self-discharge rate.
Read more ›
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Style Name: Pro AASize: 4-Pack Verified Purchase
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.
Read more ›
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Style Name: Pro AASize: 4-Pack Verified Purchase
I purchased 8 of these batteries to use on my Nikon SB-600 Flash. Previously I had been using both Duracell and Energizer brand rechargeable Ni-MH batteries. The differences are night and day. The envelop pro batteries allow me to shoot 3 fps with my flash for 2-3 seconds before they can't keep up. In the past, I was lucky to get my flash to cycle in time to go off for every other shot.

I also use the current generation of standard eneloop rechargeable batteries on various gadgets and toys around my house. I would not recommend the :envelop pro" batteries for everyday use, not because they would not work, but because there is no need for a battery of this caliber for most things.

I will never go back to using any other type of rechargeable battery.

I use a La Crosse Technology BC-700 to charge the batteries and have never had an issue with heat dissipation.
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Style Name: Pro AASize: 4-Pack Verified Purchase
Note: This review is based on the AA variant of the eneloop pro

I made a comment in my review of the regular eneloops that it was a hair thicker than regular alkalines. Devices with extremely tight-fitting battery compartments may face an issue using the regular eneloops. The eneloop pros perform even worse in this regard; they are yet another hair thicker than the regular eneloops.

Devices with formerly little or no issue with the eneloops now face a variety of situations with the eneloop pros. Removal of the batteries from the battery compartment of the Xbox 360 wireless controller, for instance, became next to impossible without some ingenuity. Cursor movements with the Microsoft Wireless Mouse 5000 became sluggish due to the ever-so-slight protrusion of the battery cover, creating extra friction with the table surface.

Panasonic should have put a discretionary label informing users of the additional thickness between the eneloop and the eneloop pro. Unless you're certain of the battery slot tolerances of your appliances, save yourself the frustration and get the regular eneloops instead.
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