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Panasonic BK-4MCCA8BA eneloop AAA 2100 Cycle Ni-MH Pre-Charged Rechargeable Batteries, 8-Battery Pack
Purchase options and add-ons
Number of Batteries | 8 AAA batteries required. (included) |
Brand | Eneloop |
Battery Cell Composition | NiMH |
Recommended Uses For Product | Camera, Toys, TV Remote, Gaming Controller, Radio, Flashlight, Mouse, Remote Control Vehicle, Wireless Keyboard, Phone See more |
Unit Count | 8.0 Count |
About this item
- LONG LASTING PERFORMANCE: Recharge eneloop AAA rechargeable batteries up to 2100 times
- POWERFUL NiMH RECHARGEABLE BATTERIES: eneloop AAA Ni-MH pre-charged rechargeable battery deliver up to 800mAh typical, 750mAh minimum
- PRE-CHARGED AND READY TO USE: eneloop AAA rechargeable batteries are pre-charged at the factory using solar power and maintain up to 70% of their charge after 10 years (when not it use)
- SECURE, PROTECTIVE PACKAGING: This package contains 8 eneloop AAA rechargeable batteries
- EXTREME TEMPERATURES: eneloop rechargeable batteries can used in extreme temperatures, down to -4 deg F
- QUALITY YOU CAN TRUST: These eneloop rechargeable AAA 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 AAA rechargeable batteries can be used in remote controls, flashlights, toys, wireless computer devices, rc cars, digital camera flash units, game controllers and more
Frequently bought together
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From the manufacturer
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eneloop batteries are the perfect balance between rechargeability, power, and capacity for every household device including flashlights, remote controls, wireless electronics and hundreds of other power hungry devices. |
eneloop batteries utilize a highly durable super lattice alloy which prolongs the life of this material. These improvements increase 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 Fahrenheit. |
eneloop AA | eneloop AAA | eneloop pro AA | eneloop pro AAA | |
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Customer Reviews |
4.8 out of 5 stars
37,551
|
4.7 out of 5 stars
22,741
|
4.7 out of 5 stars
8,817
|
4.7 out of 5 stars
8,817
|
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 | Hold 70% charge up to 10 years* | Hold 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 |
Compare with similar items
This Item Panasonic BK-4MCCA8BA eneloop AAA 2100 Cycle Ni-MH Pre-Charged Rechargeable Batteries, 8-Battery Pack | Recommendations | dummy | dummy | dummy | dummy | |
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Price | -29% $19.05$19.05 List: $26.99 | -21% $36.47$36.47 List: $45.99 | -22% $17.18$17.18 List: $21.98 | $38.99$38.99 | -9% $9.99$9.99 List: $10.99 | $12.59$12.59 |
Delivery | Get it as soon as Tuesday, Apr 2 | Get it as soon as Tuesday, Apr 2 | Get it as soon as Tuesday, Apr 2 | Get it as soon as Tuesday, Apr 2 | Get it as soon as Tuesday, Apr 2 | Get it as soon as Tuesday, Apr 2 |
Customer Ratings | ||||||
Remote Control | 4.5 | 4.5 | 4.4 | 4.4 | 3.9 | 4.1 |
Longevity | 4.3 | 4.6 | 4.3 | 4.4 | 3.6 | 3.9 |
Value for money | 4.3 | 4.5 | 4.3 | 4.3 | 3.9 | 4.1 |
Durability | 4.4 | 4.2 | — | 4.6 | 4.3 | 3.8 |
Battery life | 4.3 | 4.2 | — | 4.4 | 3.9 | 4.0 |
Sold By | Amazon.com | Amazon.com | Amazon.com | Amazon.com | Powerowl | EBL official |
battery quantity | 8 aaa, 4 aa, 8 product specific | 16 aaa | 24 aa | 12 aa | 8 aa, 8 aaa | 12 aaa |
connector type | wireless | wireless | wireless | wireless | — | — |
voltage | 1.2 volts | 1.2 volts | — | 1.2 volts | 1.2 volts | 1.2 volts |
reusability | Rechargeable | Rechargeable | Single Use | Rechargeable | Rechargeable | Rechargeable |
compatible devices | Solar | Solar | Toy, Remotes | Toy, Torch, Controller, Camera, Remote | de Application: Powerowl rechargeable batteries are widely used in household devices like remote controls, digital cameras, electronic toys, hand held games, radios, flashlights, alarm-clock, Toothbrushes, Shavers and other devices that need AAA battery. | Clock, Toy, Shaver, Radio, Torch, Camera, Remote |
Product information
Product Dimensions | 0.84 x 3.38 x 4.25 inches |
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Item Weight | 3.66 ounces |
ASIN | B00JHKSMIG |
Item model number | BK-4MCCA8BA |
Batteries | 8 AAA batteries required. (included) |
Customer Reviews |
4.7 out of 5 stars |
Best Sellers Rank | #4,868 in Health & Household (See Top 100 in Health & Household) #24 in AAA Batteries |
Is Discontinued By Manufacturer | No |
Date First Available | April 11, 2014 |
Department | Unisex-Adult |
Manufacturer | Sanyo |
Country of Origin | USA |
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Product Description
eneloop AA and AAA NiMH ready to use rechargeable batteries utilize Panasonic advanced rechargeable battery technology, allowing them to be recharged up to 2,100 times. eneloop AA and AAA rechargeable batteries deliver consistent power performance, maintain 70% of their charge for up to 10 years, 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 chargers to maximize your rechargeable battery experience.
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers like the charging, capacity, performance, and value of the battery. They mention that it recharges very easily, keeps its charge, and works great in all chargers. Some are satisfied with battery life. That said, opinions are mixed on quality.
AI-generated from the text of customer reviews
Customers like the battery capacity of the product. They say it's fantastic rechargeable batteries that work great and can be recharged many times. They also say the batteries recharge overnight and hold their charge for quite a while. Customers also mention that the batteries are the best NiMH rechargeables on the market, and they charge quickly.
"...for devices like TV remotes, they charge quickly, and they can be recharged many times. The ones I bought years back are still working fine...." Read more
"These ones can take a few more charges and in general are more durable. Charging was super easy, and I have not had any issues with them...." Read more
"...hold a charge well, last a long time once charged, and continue to recharge well with no noticeable decline in how long they last in use...." Read more
"They are great batteries but they do not come fully charged. A quick charge for 45 minutes on the Panasonic charger and they are ready to go." Read more
Customers are satisfied with the battery life of the battery. They mention that it lasts as long as throw away batteries, holds most of its charge for a long time, and is reliable. Some say that the batteries stay charged in storage for long time and that remotes seem to last forever with them.
"...One recharged they stay charged in storage for a long time so it is easy to always have charged batteries on hand...." Read more
"These ones can take a few more charges and in general are more durable. Charging was super easy, and I have not had any issues with them...." Read more
"...worked in all my chargers, hold a charge well, last a long time once charged, and continue to recharge well with no noticeable decline in how long..." Read more
"...Everloop rechargeable batteries for several years now, They seem to last longer than your typical Duracel or Energizer as well as maintaining their..." Read more
Customers are satisfied with the performance of the battery. They mention that it works great with their Powerex Professional Charger, is effective, and is reliable. They also say that the batteries hold a charge well, last a long time once charged, and recharge very easily and reliably. Customers also say the batteries are powerful enough for devices like TV remotes, and that the ability to constantly give power is impressive.
"...They are powerful enough for devices like TV remotes, they charge quickly, and they can be recharged many times...." Read more
"...These consistently worked in all my chargers, hold a charge well, last a long time once charged, and continue to recharge well with no noticeable..." Read more
"I think these are the 2nd bunch that I bought for my kids' toys. These works great, no complain...." Read more
"These batteries work great with my Powerex Professional Charger-Analyzer. They cost a bit more, but they keep their charge...." Read more
Customers like the value of the battery. They say it's worth the extra money, has immense money savings, and is much less expensive in the long run. Customers also say that it pays for itself soon enough and eliminates single-use batteries. Overall, customers are satisfied with the value and performance of the product.
"...Quality Products at a reasonable price especially given their life span." Read more
"...The money savings has been immense, compared with disposable batteries. If you are on the fence, buy some and find out yourself." Read more
"...They are use to also charging head set. These have saved me SO much money in batteries!! If you have gaming teens, buy them!" Read more
"...I have found these to be a good buy for the price." Read more
Customers like the charging of the battery. They say it recharges very easily and reliably, it can be recharged in just a few hours, and it charges nicely in their smart charger. Some say they have never had any issues charging and that the battery arrives pre-charged.
"...They are powerful enough for devices like TV remotes, they charge quickly, and they can be recharged many times...." Read more
"...Charging was super easy, and I have not had any issues with them. Superior batteries...." Read more
"...all of their chargers to my knowledge also allow for AA and AAA charging...." Read more
"One of the good investments I made for sure. Easy to charge and re-use...." Read more
Customers like the battery's self discharge. They say it has very low self discharge, holds up to its rated capacity, and the charge rate is incredible. The batteries also have a great discharge with almost full power until drained. Customers also say that the batteries don't discharge in the kitchen drawer and have better performance in toys.
"So the premise of these batteries is that they have a low self discharge rate, and will have 90% of their charge in 5 or 10 years...." Read more
"...The little discharge means that when ARN remotes or inactive items they hold their charge well...." Read more
"...In the keyboard they drain rather quickly and I have to charge them once a week even if I turn the keyboard off after each use and don't use the..." Read more
"...low self discharge rate and long term economics make these a wise choice...." Read more
Customers are mixed about the quality of the battery. Some mention that it's a high quality product, built to a higher standard, and has a great QA process. However, others say that the quality has faltered and the batteries are weak and underpowered. They also say that they wish the quality control was better and the handsets were unreliable before installing them.
"...Quality Products at a reasonable price especially given their life span." Read more
"...The very narrow range is an indicator of high quality and consistency in the manufacturing process...." Read more
"...they only last 40% as long as standard AA batteries and do not appear to be as resilient, I do like the fact that I am not throwing out or recycling..." Read more
"...Extremely rare chances of leakage, compared to alkaline batteries: Leakage can cause great amounts of damage for the devices that these batteries..." Read more
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The batteries arrived packaged on a card as shown in the photo on this page. I confirmed these are the latest 4th generation Eneloop batteries as advertised. The date of manufacture is imprinted on every battery, and although difficult to see, I found this set was made 5 months prior to receipt.
With any low self discharge battery (LSD NiMH), one should perform an initial and periodic "conditioning" comprised of charging and discharging the cell 3-5 times in a charger that has this function (sometimes called "refresh") in order for the cells reach their maximum energy storage capacity. After conditioning the AAA batteries, all 8 exceeded 750mAh capacity (the advertised minimum), with values ranging from 762mAh to 778mAh. The very narrow range is an indicator of high quality and consistency in the manufacturing process.
What follows are general recommendations to get the most from Eneloop and other LSD NiMH rechargeables....
Get a good quality charger if you use Eneloops or other LSD NiMH batteries. Cheap chargers will significantly shorten the life of these high quality and somewhat expensive rechargeable batteries. The charger must be a microprocessor controlled "smart" charger that chargers each battery individually, not in pairs. I use a Titanium "smart fast" charger when bulk charging many batteries, and a Opus BT-C2000 when trying to get accurate measurements on capacity and internal resistance. These are there several others good quality chargers out there so be sure to read reviews from people who understand and discuss the technical aspects of battery chargers. That 15 year old old battery charger you have that came packaged along with some long since thrown away rechargeable batteries should not be used.
Not all devices are designed to work with rechargeable batteries. The nominal voltage of rechargable NiMH batteries, 1.2 volts, is less than the alkaline equivalent at 1.5 volts. Some devices work well with either one and some are only designed for the higher voltage alkaline. This not a problem with the battery, it is a problem with the way the device is designed. Unfortunately it's rare for a device manufacturer to mention how (or if) it works with rechargeable batteries so you will have to test it or read the experiences of others.
Devices that display the amount of power left in a battery will be inaccurate when using rechargeables and tend to indicate the batteries have less power than they really do. A device may show 2 out of 4 bars, when in fact the Eneloop might really be at 85% of charge.
Rechargeable batteries like Eneloops (LSD NiMH), store 20-35% less energy than a good quality alkaline of the same size. This is not a "problem" with the rechargeable battery, it is a characteristic of the chemistry and how the energy is stored. That means you can not expect them to last as long between charges as an alkaline before replacement in most applications. LSD NiMH batteries however do hold more energy and last longer than carbon zinc batteries aka "heavy duty" (these are the really cheap batteries you may see at the dollar store or come prepackaged with low end flashlights).
Rechargeable batteries should not be *over* discharged as it will damage them. Unfortunately it's hard to tell exactly when the ideal time is to recharge so it's better to stay on the safe side and recharge early when device performance starts degrading and not wait until it's completely dead. The best way to tell for certain is to test with a battery tester that measures voltage under load and recharge when the battery gets to about 1.1 volts Even some cheap battery testers can do this (look for BT-168D) or for a more expensive one the ZTS mini 9R. If all you have is a voltmeter, recharge when the open circuit voltage at rest is about 1.22v.
Rechargeable batteries should not be charged too quickly as the internal heat build up will damage them. For AAA NiMH, it should take 2-5 hours to charge fully depleted batteries. If your charger goes from empty to full in 30 minutes, it is either damaging or under charging the batteries.
Devices that automatically charge the batteries, such as cordless phones or cheap solar lights, are not a good candidate for Eneloops. These devices use "dumb" charging circuits and will likely overcharge the batteries shortening their life. For these types of batteries you are better off with cheap NiMH batteries that are not marketed as low self discharge (LSD).
Devices that use a very small amount of constant power, such as a battery powered clock, might be better off with an alkaline. An alkaline may only need to be replaced every 3 years in such applications, where as the rechargeable may need charging in less than a year due to higher self discharge rate and lower nominal voltage. You will need to test it to be sure and decide what makes the most sense.
Infrequently used low power devices such as a TV remote in a spare bedroom are usually better off with alkalines. A high quality alkaline may last 5 or more years, and the cost/benefit of an LSD NiMH just isn't there. Be cautious of low quality batteries this these sorts of applications as the battery may leak after a couple of years.
Eneloops (and LSD NiMH in general) are better than alkalines in high current applications. An Eneloop can move energy faster to the device than an alkaline. Examples where LSD NiMh out perform alkalines are modern photographic flashes, remote controlled cars/planes, certain high output flashlights.
Marking your batteries is a good idea, especially with you have many purchased at different times that all look the same. I mark mine by putting the year/month I purchased them, followed by a unique letter. When I first get them, I test their capacity and log it for future comparison. Even if you don't have the equipment to perform extensive testing, just knowing when you purchased each battery can be helpful down the road.
Properly managed, high quality LSD NiMH batteries like Eneloops will give a long life. Abused, they will not do any better than cheap NiMH batteries. Most of the complaints and bad reviews are from people who do not understand the limitations, use them in the wrong application, or who do not properly charge them. Correctly using rechargeable batteries takes some work and isn't for everyone, but if you can deal with their idiosyncrasies, they can save a lot of money in the long run.
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Mi uso principal sin un mouse y teclado, control remoto y los juguetes de mis pequeños