Panasonic BK 3MCCA8BA eneloop Pre Charged Rechargeable Reviews Summary

Battery Life and Longevity

Pros:

• "Used 5 hours a day, 6 days a week for a Shure wireless microphone. Batteries last 3-4 days, then I switch them out with the ones on the charger."
• "I’ve used these for 8 years now. So, I decided to replace after I noticed they were draining more frequently."
• "I have eneloops that are ten years old and they still hold a decent charge, have never leaked, and like the energizer bunny just keep going."
• "These batteries are amazing. I bought 8 of them in 2016 to use with gaming controllers, and am just now having to replace a few of them."
• "I have used their product for the past six years. I only purchased this unit because I forgot the others while traveling."
• "They work great, seem to have a low failure rate, and hold their charge a lot longer than I would expect."
• "This latest set of Eneloops arrived in LESS than 24 hours fully charged. Five stars."
• "We bought 48 of these batteries for a total cost of $140 and fully charged them."

Cons:

• "After three months of use (and I would say very light use) I've had to throw five of the eight away because I would get about five to six minutes of noise canceling in my Bose headphones."
• "I bought these Panasonic batteries to replace single use AA batteries with rechargeable. when received these batteries had nearly 0 charge."
• "I bought Panasonic Eneloop batteries because they are Japanese and not Chinese made. On the first recharge of 3 AAA batteries, one wouldn’t take a charge."
• "I bought 30 Enloop batteries from Amazon and immediately--I couldn't believe how terrible the battery life was."
• "My wife has batteries in everything for our young child. I don't have to remember that I have $20 worth of batteries in the $5 toy."
• "I have used rechargeable batteries since I was a kid and eneloop since a long time ago. These batteries lost charge capacity very fast."
• "I sometimes make the decision to buy cheaper rechargeables and I always regret."
• "These batteries didn't hold their charge from the beginning. In two weeks they dropped to 60% charged."

Charger Efficiency and Design

Pros:

• "Also, this charger does BOTH AA and AAA batteries."
• "The charger has color coding and it works as advertised every time. When the lights go out the batteries are completely charged."
• "It works as intended. Again I have not had any issues with them but not sure if they are the best of the best or the worst of the worst."
• "The charger is small, lightweight and efficient. Love the lights on each individual batter compartment that tell you the status as it is charging."
• "I really like this new design of the Eneloop battery charger for three reasons. First, it uses a flip-style power plug: when you are not using it, you flip the blade back into the body, making storage easier."
• "The only complaint I have is that they were so tightly packed into the charger when I got it that pulling them out damaged some of the battery's branding "wrap" around the negative base."
• "I am a repeat buyer of Eneloop AA batteries from Panasonic. I have the Eneloop battery charger. I have great results using these batteries in items that I will use repeatedly."
• "I have purchased SO MANY rechargeable battery brands over the years. I'd say at least over the last 15+ years I've worked my way through several brands just to test them all out. This is the one battery that I now keep coming back to."

Cons:

• "For the slight different in price, I don't see any reason to not get the 3 hour chargers. Under no circumstance is it an advantage to wait 7 hours to get your batteries recharged."
• "I bought the Panasonic K-KJ17MCA4BA charger on 10/27/23 and separately a AA Amazon Basics 16 pack. As the product description states, fully discharged batteries need about 8 hours to be recharged."
• "I should have followed recommendations by other reviewers to buy a device with Quick Charge capability. Lesson learned!"
• "It is very difficult, but I finally managed to contact the manufacturer about the leaking battery. The contact info given on the package is not correct."
• "The LED indicator lights are ALWAYS green. I have tried at least three times with AA and AAA batteries that I know are drained."
• "It's difficult to charge AAA batteries. I have yet to accomplish that."
• "The packaging states that it will take 6-7 hours to fully charge AA batteries but the green lights go off after one hour."
• "I'm not sure I would recommend these batteries or the charger. The charger doesn't always seem to charge batteries and it difficult to get AAA batteries to stay put."

Environmental and Cost Efficiency

Pros:

• "I figure I've saved 200 batteries over the last year alone, and the battery life doesn't seem to be degrading any."
• "I'm commenting here on use for photography. I recommend them highly and have bought a lot of them."
• "I've gotten more over time since I've been replacing all my batteries with them! They're great in toys gaming things like controllers and remotes."
• "Depending on the length of the sermon, just two of these batteries lasted thorough 10-11 sermons for us."
• "We use these in everything, even bought the C & D adapters so we can use AA batteries in flashlights."
• "I have never had one leak. Now i never worry about flashlights being destroyed because the batter leaked."
• "They have paid for themselves many times. They have lasted for about 300+ flash shots easily."
• "One of the biggest things I like about these is they start out fully charged and ready to go."

Cons:

• "We use these in everything, even bought the C & D adapters so we can use AA batteries in flashlights."
• "They don't last as long as I had hoped. I use them in my camera flash. I still have to buy regular batteries for fear these will lose power fast."
• "I only got new batteries so that I could have NEW batteries. These don't hold a full charge, and don't last as long as the last ones I bought."
• "I had the black model of this charger bought in 2014. It was very picky (you should get a different style charger, such as the Eastshine S2, because a lot of batteries rejected by the Panasonic chargers were still accepted as fine by it)."
• "I ordered this product for my brother-in-law in Illinois. At 87 his enjoyment is TV and Books on tape. My mother is in the same position."
• "I am a repeat buyer of Eneloop AA batteries from Panasonic. I have the Eneloop battery charger. I have great results using these batteries in items that I will use repeatedly."
• "These batteries didn't hold their charge from the beginning. In two weeks they dropped to 60% charged -- and they weren't used during this time."
• "The non-charge would last six months these last four months in the same devices!"