SINCEHOLY 8 Pack Rechargeable Lithium AA Batteries with Fast Charger, 1.5V High Power 3600mWh Double A Batteries, AA Rechargeable Li-ion Batteries with 2000+ Cycle Times

I'm giving it a 5 star because they work great on most everything. If I was to rate them using them in a high drain situation like a blink camera it would be a 2 star. They work fine in normal double a battery situations, lasting way longer than normal rechargeable batteries for sure. Putting them in the blink system after a day they already have the low battery icon - especially when it's cold out. During the winter we are below zero and these batteries don't even last a week, which isn't a big deal as they recharge but what sucks is going outside every week in that kind of temps to replace them. Normal energizer lithium batteries last about 4 months for me. I would recommend these to anyone for ease of use and they really do a good job other than in my blink cameras.

This is the 2 nd set of batteries. The first set I received and charged. I use them in my door lock. They were great and then I went to replace them and the 4 batteries waiting to be used lost there charge in 30 days. I went to charge them and 1 battery was no longer charging and had never been used. I sent the batteries back for a replacement and the replacement had to charge for 8+ hours. I got tired of waiting and went to bed. In the morning they showed charged. We will see how the replacement set does. In the beginning I was absolutely satisfied with the batteries until it came time for replacement. We will see how these do.

I bought these for my nephew, and he couldn't be happier. He plays on an Oculus as well as an Xbox, and was running through batteries faster than a factory could make them. Not anymore! These hold a great charge and have enough batteries for him to always have a charge. We all know how moody a teen can get without his games, so this was a gift not just for him, but also for my sister. This has saved her mental sanity from a middle-of-the-night battery request, and also her wallet from his constant need for batteries. The case is super sturdy; he has dropped it more times than I can count that I know of without any issues, and it is small enough for him to fit into his pocket on the go.

Giving this 4 stars only because I received two batteries that won’t charge and show up with a red indicator from the case. Besides that, the batteries work great with my wireless microphones that use batteries.

I recently purchased this 8-pack of rechargeable lithium AA batteries with the fast charger, and I’m thoroughly impressed. The 3600mWh high power rating means these batteries last significantly longer than standard rechargables and disposables, making them ideal for high-drain devices like cameras, game controllers, and smart home gadgets. Charging is a breeze—the included fast charger quickly tops up the batteries in just a few hours, and the LED indicators let me know exactly when they’re ready to go . I love that I no longer have to buy disposable batteries, saving money and reducing waste. The 2000+ cycle life is a standout feature, promising years of reliable use before needing a replacement. Safety is also a priority, with built-in protection against overcharging, overheating, and short circuits. The batteries perform well in both indoor and outdoor environments, and the constant 1.5V output ensures stable power for all my devices. Overall, this set is a fantastic investment for anyone tired of constantly replacing batteries. Highly recommended for its long-lasting power, quick charging, and impressive durability!

Like others, I purchased these lithium rechargeables to offset the disposable lithiums, specifically for my keypad door lock on my front door. The little charging box looks nice and the batteries fit as expected, and I appreciate that each one doesn't have to be plugged into USB like some competitors. My first uses went well. They didn't last as long as disposable, but pretty close. Given I can just charge them back up again it wasn't terrible. Unfortunately, after the third charge I noticed the lifespan went down dramatically. They now fail much more quickly than an alkaline, and when they fail they seem to immediately fail rather than just degrade in output. Last, at charge four I noticed that one battery (out of eight) will no longer charge and the charging box flashes a warning. Would definitely NOT recommend!

great buy! they last a long time and recharge in a few hours. They beat buying batteries so often for wireless microphones.

Price is reasonable. Holds 8 batteries at a time. Gives an idea which batteries needs to be recharged.

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