Battery Charger for 18650 21700 AA AAA Ni-MH Li-ion 3.7V

Works good and I'm impressed with the charger

They charge my laser and flashlight batteries at the same time. Definitely a great product!

I needed a charger for 2/3 AAA batteries. This charger works great and charges fast.

Good charger for my battery

I had an unusal sized small rechargable flashlight battery. This unit charged it up easily. Light and not expensive.

This battery charger was able to fully charge a number of AA type batteries for me, when other chargers that I have could not. It can also charge N size batteries. I check the batteries for voltage prior to placing them in the charger. When I pull them out, I check the batteries for voltage and for surface temperature (by feel). The batteries coming off of this charger were relatively cool compared to other batteries of off other chargers. Typically, a rechargeable NIMH battery will charge up to 1.38 volts. The listed voltage of the typical rechargeable AA battery is 1.2 volts. However, I found that the batteries coming from this charger would measure at 1.140+ volts. Finally, I had a few batteries that were simply dead, meaning that their voltage measured low, i.e., 0.5 volts or less. They fully recharged with this unit when other battery chargers would not work at all with them. I don’t know how long these revived batteries will last, but still I am impressed.

Was a great purchase

So that leaves out key-chain sized 10180 or 14250 flashlight platforms. Otherwise the dual-charge capable 1a/2a output is nice for the higher capacity batteries and safe for the lower capacity as well.