Deleepow Rechargeable AA Batteries, 4 Pack 3200mWh 1.5V Lithium Li-ion Long Lasting AA Rechargeable Batteries, 1500 Cycles AA Batteries

I was burning through 4 duracell AA batteries every 18 -20 days on my door lock. I purchases 8 of these batteries and what a difference. I get close to a month and a half before having to recharge/replace with my second set. 3200 Wh blows most name brand AA batteries out of the water!

I bought several packages of these in AA size, and they're absolute garbage. I've tossed almost half of what I bought after less than a year of use, because they will no longer take a charge. I only got one or two cycles out of them. The ones that will still take a charge don't hold it for long. I bought a different brand for the AAA size, and they're working MUCH better. I've switched to a different brand for the AA, and am now quickly tossing all the rest of these, as each one decides that it, too, is done accepting a charge.

These are great. Long life, fast charging, and they hold their voltage really well. I use them in everything now.

I was very pleased with this product. The battery life is VERY long and the batteries are surprisingly light in weight. I VR so these batteries are practically made for that!

Purchased both the AA and AAA sizes, 4 each, as well as the 4 position charger that fits both sizes. So far so good, we are using them in various items such as a hand held milk/coffee frother, video cam, TV remotes. Etc. Its super convenient to recharge rather than need a battery only to discover its necessary to make a trip to the store because you're out of the size you need. Recently purchased another 4 AA size and one of them was DOA. Would not take a charge and after 3 hours tested zero volts and was very HOT in the charger. So poor marks for quality control. Of course Amazon is replacing them. Also wanted to note that milli-AMP hours and milli-WATT hours are NOT the same thing, unfortunately different brands mix terms to describe capacity. For example; a standard alkaline AA battery would range from under 1,000 (cheap) to over 2,000 (high end) mAh which would translate to 1,500 to 3,000 mWh (milli-Amp hours X Volts). Energizer Lithium AA have a capacity of approx. 3,000 mAh (4,500 mWh). As a comparison these DeleePow Lithium rechargeable AA's claim 3200 mWh which is only 2,133 mAh. Realistically then they would only last as long as a good Alkaline AA before needing to be recharged. I suspect this may be due to the fact some of the space inside the cell is being used for a small circuit to handle voltage and current as well as the chemistry being optimized for recharging NOT capacity.

I bought 16 batteries total. The batteries last just as long in the game controller as they do in their plastic box. I bought these so that the kids could have a set that they are using and a spare set that was charged and ready to go. Unfortunately the batteries self discharge in about 5 weeks when stored in the plastic box. Fortunately however they last that long in the game controller which is a big plus. They also seem to charge quickly which is nice.

True bargain, output is 1.5 v exact!

I bought 8 sets of these to use in trailcams. Left them out 1 month and they wouldn't even last that long. The Harbor Freight 1.2V batteries lasted longer. Plus, now that I have them home they are dead and will not charge. I've tried reviving them via methods online with zero luck.UPDATE: I was able to get about 80% back to life. Ran them again and another 4 are dead "error" on the charger. Bought 8 sets now I'm down to 6 full sets. Not sure if the purple are defective, but they rebranded them as black now.