Deleepow 3400mWh USB-C Rechargeable AA Lithium Batteries (4-Pack) - 1.5V 1500 Cycles with USB Cable - Perfect for Cameras, Game Controllers & Smart Home Devices

Love the rechargeable batteries, but one battery was no good, so have to buy four more to replace one.These are my new favorite batteries. It charges via usb c and only takes about an hour or less to charge. It’s holds 3400mWh, which is quite high for AA batteries. I use them for Xbox gaming so I don’t want to have to recharge often. Each battery have its own usbc port for charging which is awesome. It lights up and blinks so you know when it’s charging vs when it’s done. I wish everything would use USBC for power. It would make life much easier than having to get a separate adapter with a large brick. These batteries are awesome.Can only power a usb mouse a day and a half, not worth the time nor money.Charging ports are very fragile, can easily break, mine have not yet but be VERY careful plugging and unplugging them.Charge time is ok however for the time charging you would think they would last longer. Granted there has to be room for the charging circuit and the internal battery it makes sense that they do not last longer.It would be more cost effective to buy legit rechargable batteries and a charger than this piece of kit.WOULD NOT EVEN RECCOMEND TO EVEN BE FOR SALE ANYWHERE!!!I bought this set, put three of them in my led headlamp. The fit is tight, they are a little longer than a standard Duracell AAA. Turned on the lamp, and it flashed really bright, then settled down. I put it on and used it for about 2 minutes and then it went out. The red night-vision led's still worked. So, I charged the batteries with their USB cable, then put them back in. No Go. The headlamp is ruined. The batteries should not do this, this is a defect.I have tried to charge these batteries multiple times and none of them hold a charge. There are 2 different battery styles In this packageOne lithium battery burned itself. It seems a short circuit issue. The batteries are unsafe to use.These rechargeable AAA batteries are amazing. They are very long lasting and fast to recharge. They include the cable to recharge and they protect against overcharging which is very convenient because many times I forget to take them off the charger and it's ok because it won't harm the battery at all. Very good price and value for the pack of 4 rechargeable batteries. Very pleased and definately recommend.