Panasonic BK-3MCCA8BA eneloop AA 2100 Cycle Ni-MH Pre-Charged Rechargeable Batteries, 8 Pack

(10 customer reviews)

Sale Price $18.99

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  • Recharge up to 2100 times
  • Maintain up to 70% of their charge after 10 years (when not it use)
  • 2000mAh type, 1900mAh min, Ni-MH pre-charged rechargeable battery
  • Pre-Charged at the factory using solar power and ready to use
  • No memory effect – batteries can be recharged when fully, or partially discharged

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Brand: Panasonic


Panasonic BK-3MCCA8BA eneloop AA 2100 Cycle Ni-MH Pre-Charged Rechargeable Batteries, 8 Pack

Additional information


Product Dimensions

1.2 x 3.38 x 4.25 inches

Item Weight

0.496 ounces

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Item can be shipped within U.S.

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Item model number



8 AA batteries required. (included)

Is Discontinued By Manufacturer


Date First Available

April 11, 2014





Country of Origin


10 reviews for Panasonic BK-3MCCA8BA eneloop AA 2100 Cycle Ni-MH Pre-Charged Rechargeable Batteries, 8 Pack

  1. Christopher A. Parr

    My wife, being incurable romantic (I’m not complaining), has countless flameless candles burning throughout the house, not only for atmosphere but also for night lights. They chew up batteries if run continuously. So rechargeable batteries are absolutely the way to go. And these are as good as any I’ve found. Of course, you must invest in a decent charger, but that needn’t break the bank. The Panasonic CC75 unit is quite inexpensive and boasts a USB port on the side for even greater utility. It takes so little to please your spouse. 😊

  2. Charles J. Hampton-Snow

    I use these in my photographic flash units, LED lighting equipment and also in simple things like battery operated LED candles. I decided to test 3 sets, these, the Pro (black) Eneloop and Amazon Basics version. I fully charged the 3 sets, put each set into an LED candle that goes on everyday for 6 hours. After 7 weeks, the Amazon battery died first. The 2 Eneloops versions are still going and while I have no idea yet if the Pro will go that much longer then Panasonics white version, I recently needed to buy more but this version is so much cheaper than the Pro version I think it’s the better deal. Each Pro battery, as currently priced is $2 more then this white version . I’ve used both in my flashes and there seems to be no difference. With as many batteries as I use and need, I just saved $32 buying these over the Pro.

  3. JR

    Was using 3-4 year old Duracell 2500ma NIMH AA at first in the Quest Touch controllers and was having serious tracking problems. Switched to the 1800ma Eneloop (white) AA and now I rarely have any problems. Do not use the 2500ma (black) Eneloop Pro because they’re made to discharge quickly at a high output (like for digital cameras and flashes) and will drain too quickly causing tracking issues. I’m assuming, due to my experience with the 2500ma Duracell AA, that this is probably the same across all brands.Now as long as they have at least a 70% charge and the headset is over 60% they track great. I can play Beat Saber on Expert and almost never have tracking glitches. Should work on the Rift S Touch controllers as well. I did not have any problems with the 2500ma Duracell in the Rift CV1 Touch controllers but they don’t use inside-out camera tracking like the new model Rift & Quest.

  4. M. Mar

    I started using the Eneloop batteries when I was sent on a photography assignment in New Orleans. I would be required to do a lot of flash photography over the course of 5 days. Camera flashes are known to burn through batteries fairly quickly which can become costly. The Eneloop batteries come pre-charged so they are ready to go right out of the package. Anywhere I need AA or AAA batteries, e.g., headlamps, flashlights, camera flashes, remotes, wireless keyboard or mouse, wireless lights, navigation lights, etc. I use the Eneloop. The toughest environment I use these batteries are on my navigation lights on my outrigger canoe. We train on the water in the winter and even with the harsh cold and water they never fail me. I am still using the same batteries I bought for my New Orleans assignment from over 8 years ago. They have more than paid for themselves over the years AND provide excellent performance. What is really nice is if they start to loose some power I just pop them into the charger and I am good to go again.

  5. Phil Ibarrola

    I was going through batteries for my external keyboard and trackpad which I use every day with my laptop from work. I decided to switch to rechargeable batteries to cut down on the waste and reduce carbon impact. It’s not just the batteries. You also have to think about the carbon used to manufacture the batteries, packaging, transport, storage, etc. So over the life of these batteries, I would say it has helped. I also find it convenient to have a charged set of batteries ready to go.I ended up buying 8 batteries. When the charge runs low in my device, I am able to swap them for a charged set with minimal disruption. I can then put the spent cells in the charger.Batteries last around 3-4 weeks in my Apple external keyboard with heavy daily usage. They last about about 1-2 weeks in the trackpad. The batteries take about 4-6 hours to charge at 200ma in the battery charger that I have.

  6. Mark Twain

    These are Panasolic Eneloop batteries. They are as good as all the praise they receive over the internet from people that use them. Yes, they are a bit pricey, but at the cost of disposable alkaline batteries today, one only needs to recharge them about 15 times before one has saved far more than the purchase price. I.e., a 48 pack of Amazon Basics AA disposables work out to 31.2 cents each. One of these is 4.75, and Panasonic claims 2,100 recharge cycles. At 31.2 cents per disposable, 2,100 disposable batteries would end up costing $655.20, or 137.9 times more than these batteries. So you get to save money, and reduce waste all at the same time.

  7. Mr. Mechanic

    I have used Panasonic NIMH batteries for at least the last 15-20 years. I work in the battery industry and their Lion batteries are inside many of the battery packs that we sell, so I already knew which brands last and which ones don’t. My last set of AA NIMH were in a work light that I used almost every day and recharged about once every 2 weeks. They finally were showing signs of wearing out. I pulled them out to look at them and realized that I had written the date on these back in 2008. Wow, 13 years. Well I think they paid for themselves.Even with all this knowledge and positive experience, I am cheap, and like so many of you, I considered several less expensive brands. Afterall, this is just a utility light, it doesn’t require the best of everything. Well, I decided to follow the advice I give so many customers and stepped up to buy these batteries. I had replaced the old dieing set of batteries temporarily with fresh Alkalines, until these came in. The alkalines should last longer than a NIMH, they have more capacity, but they barely made it two weeks. I received these, gave them a quick top off charge and put them in. They have been going 3 weeks strong. I am impressed and very happy I decided to buy these. Good old Panasonic, they simply are the best.

  8. Christopher Zele

    I have had my Eneloop batteries for a while now. They are great for my Xbox One controllers, as those do not have rechargeable batteries, so I use Eneloops to power my Xbox One controllers and my other wireless controllers. I have used Eneloops for almost 3 years now and they are still kicking strong. The amount of batteries I have saved is in the dozens. These things just keep their charge so well, and I haven’t had one die on me yet. I really like their high quality and I have a lot of devices that need AA batteries still, so these are a nice way to save money by just recharging them after they die. If you are looking for batteries for an Xbox or GameCube controller that is wireless these work super well. They also work well on Xbox 360 controllers.One thing to note about rechargeable batteries is that the voltage is lower on them 1.2V instead of 1.5V of a standard AA, so in rare cases you might get weird performance in some electronics that require 1.5V to function properly. I have a modded Gameboy Advance that I put a backlit screen into, and these Eneloops make it think that the GBA is at low-power mode, so the red Power LED flashes constantly. That’s the only thing to watch out for.For remote controls, video game console controllers, and CD players these batteries work well. I would highly recommend people pick them up for their TV remotes or anything that they need to replace batteries in.

  9. Randy D

    Lot’s of confusion about “codes” so I put a chart up explaining the difference.Standard Eneloop models:1st Generation Eneloop model numbers and specsAAA: HR-4UTG 1000cycles Rated 800mAh. Min. 750mAh ….AA: HR-3UTG 1000cycles Rated 2,000mAh. Min. 1,900mAh …….C: HR-2UTG 1000cycles Rated 3,200mAh. Min. 3,000mAh …….D: HR-1UTG 1000cycles Rated 6,000mAh. Min. 5,700mAh2nd Generation Eneloop model numbers and specs AAA: HR-4UTGA 1500cycles Rated 800mAh. Min. 750mAh …AA: HR-3UTGA 1500cycles Rated 2,000mAh. Min. 1,900mAh3rd Generation Eneloop model numbers and specs AAA: HR-4UTGB 1800cycles Rated 800mAh. Min 750mAh …AA: HR-3UTGB 1800cycles Rated 2,000mAh. Min 1,900mAh4th Generation Eneloop model numbers and specs AAA: BK-4MCC 2100cycels Min. 750mAh …AA: BK-3MCC 2100cycels Min.1900mAh ……C: BK-2MGC 1000cycles Min.3000mAh ……D: BK-1MGC 1000cycles Min.5700mAh1=D 2=C 3=AA 4=AAAI just ordered these and got the 4th gen!!!!

  10. Mr. Wolf

    These are seriously amazing I have tried many different Ni-MH rechargeable batteries and these are the best! I use batteries a lot for 2 reasons My Camera Flashes and my Xbox Controllers and there are the go to for their long life have easily already saved me twice as much as i paid for them from not buying standard batteries .Ni-MH Batteries i have triedEnergizer 2300mah Gen 2 Ni-MH Rechargeable Batteries – HORRIBLE and worthless – should be criminal on how fast these things drain if you don’t use the batteries within 2 weeks they are already down to half a charge if they sit around.Energizer 2100/2200mAH Gen 3 Ni-MH Rechargeable Batteries (Green box with Mah at top of battery ) – DRASTIC improvement over the other ones these hold a charge much better with only a small drain over time. Their life cycle seems to start to decay a bit after about 50 – 60 rechargesDuracell Ni-MH 2450 Mah Rechargeable bought at Costo – The biggest capacity of all the others and indeed they did last a bit longer for about the first 10 charging cycles and hold their charge for months without apparent lose. But even at Costo these were a bit price I bought them before I saw amazon had a 2400 Mah Model . But too expensive since the Amazon Basics are about the same qualityAmazon Basics 2400MAH (black batter Green leaf on it Generation) – My #2 choice after about 20 charge cycles these are still exactly as advertised and in High Drain devices like my Camera Flashes these actually last longer then all other batteries but oddly take almost twice the amount of time to charge for just a small uptick but if you have a high drain equipment these are the gold standard. I actually think the have more capacity then they are rated for to be honest. And with the recent Price drop (I paid nearly 50% more then they currently sell for as a Oct 2015) These might be the new go to. These are as good as Duracell if not Better for half the price!But my preference is still my current Gen Eneloop (white ones here) – They Charge Fast – I have seen almost ZERO capacity drop off in over 100 charging cycles on these. They charge holds for months with almost no loss. They are still my go to over Amazon Basic just cause i use them more for home use for my Game controllers . They used to be cheaper then Amazon High capacity but are now about the same and someone once told me amazon uses the same manufacturer as eneloop (at one time i was able to verify that as true but not sure about this current generation) I give them the edge to eneloop over amazon right now because i believe their claim that bout 2000 charges. Amazons only time will tell but if i get over 100 cycles out of amazons with no losee in capacity I may have a new #1 but for now these guys win.

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