Rechargeable AA Lithium Batteries with Box, Double A Battery Rechargeable 8 Count 1.5V 3600mWh,Long Lasting Lithium ion Batteries with Ultra Thin Charging Storage Box for Blink Xbox

I plugged the charger in and as advertised, within 3 hours the batteries in the charger case came up to full power showing a solid green light over each one. After that I tried the other four that were packaged along with them and got the same results. It's not much of a test, but I let the group sit for a week, and when I plugged in the charger, they registered fully charged in less than two minutes. We have some small LED tea light candles that are rechargeable, and it's nice that they can do that. Some of our larger decorative candles aren't, and require three AA sized batteries. Rechargeable NiMH batteries are 1.2 volts instead of 1.5 like your standard alkaline AA battery, and are not always suited for that. These rechargeable batteries are 1.5 volts, rated at 3600 mWh, about 2400 mAh, which is in the same range of various brands of alkaline AA batteriesFor a better hands on test, I put a brand new alkaline battery in one of two identical high power led flashlights I own, and one of these lithium batteries in another. I turned them on and the brightness level was exactly the same. I left them on and could see the brightness slowly drop on the flashlight over time with the alkaline battery, as the other one held steady. A while later, the lithium battery flashlight switched off. At that time the other flashlight was still on, but the light from it was unusable. Actually, it was like that for nearly an hour. As they say with these lithium batteries you get all (full brightness in this case) or nothing. The only downside I see is that you have no way of knowing you won't have a working flashlight at some point.

I've got lots of battery operated devices in the home. From clocks, home automation devices, TV remotes, etc., I'm always buying tons of AA batteries. I don't think I can go a week without needing to replace one.These 8 AA lithium-ion batteries and charger are going to save me a lot of money. The charger can charge up to 4 batteries at a time or just one if that's all you need. It can charge them in under 3 hours and uses a USB type C cable for power (cable not included). So far, they're working well in my clocks and home automation devices. They claim that they can be charged up to 2500 times so they should last me a long time. It has an LED light for each battery so you can monitor whether the battery is charging, charged, is a bad battery, etc.Overall, this is a great set of batteries to save you lots of money. Definitely recommended.My rating method:1 star - terrible. I wouldn't consider buying it.2 stars - marginal at best. Doesn't meet the minimum requirements or quality to be useful. Buy it at your own risk.3 stars - average. Meets the quality and requirements for a product of this type but is nothing out of the ordinary. If the price is good, I'd probably buy it.4 stars - better than average. Exceeds the typical quality of a product of this type and has a few extra features not usually found on other products of this type. I'd buy it.5 stars - exceptional - far exceeds the quality of products of this type. Hard to beat the quality and features included. Best value for the money. I wouldn't hesitate to buy it.

This is a great little set of rechargeable batteries with a storage case that also works to recharge th he batteries. I like how compact that case/ charger is. The batteries worked immediately out of the box and these generally charge fastonce depleted.

Bought these to avoid buying new batteries every time my blink cameras need new ones. Charged all of them and after I put them in my cameras only 4 out of 8 hold a charge.

I mistook “3600mWh” to be “3600mAh,” and it is obviously not. The formula to convert mAh is (mWh)/(V) = (mAh). The Mupoer batteries fully charged between 1.51 to 1.52 Volts. The Mupoer 1.52V battery that offers 3600 mWh “energy” has a “capacity” of 3600/1.52 = 2368mAh. New non-rechargeable 1.5V AA lithium batteries normally come out of the box with a voltage of 1.82V and capacity 3500mAh. These Mupoer batteries when fully charged deliver 1.52V and with a capacity of 2368mAh will need to be charged more often. In comparison a fully charged Mupoer battery is at 1.52V at 2368mAh versus for a new non-rechargeable 1.82V at 3500mAh. The non-rechargeable battery has more power.I agree that these Mupoer rechargeable Li-ion batteries are better than NiMH batteries. Charging the Mupoer batteries was very easy with the supplied charger, but you can only charge four batteries at a time. I do like the intelligent/short circuit protection chip that these batteries have for over voltage protection. I cannot comment on how long these Mupoer batteries will last between charges, as at this point, I am still testing these Mupoer batteries.Here is the review ranking basis that I have adopted:⭐️1 star - I don't recommend it at all, poor quality.⭐️⭐️ 2 stars - I don't recommend it, it has multiple faults.⭐️⭐️⭐️ 3 stars - It's passable, It has some faults but the quality is ok for what it is.⭐️⭐️⭐️⭐️ 4 stars - Product quite acceptable, it does what it promises.⭐️⭐️⭐️⭐️⭐️ 5 stars - Product that I totally recommend.