Liitokala multi-chemistry USB charger/powerbanks are top quality, incredibly versatile and amazing value! Customer reviews
All of my chargers are powered from USB-A ports – the kind you find in cars, hotel rooms, solar chargers, multi-connectors, cellphone chargers... just about anywhere. USB-powered chargers are far more reliable than the old 220vAC type, whose transformers were prone to melting down!
And they all accept different battery sizes and chemistries, including the 3.7v Li-Ion (lithium ion) cells in almost all premium torches and the 1.2v NiMh (rechargeable AA and AAA batteries) available from supermarkets, so they make wonderful go-anywhere universal chargers.
More importantly, they automatically apply the correct charging algorithm to each chemistry, assuring the longest service life from all your rechargeable batteries (nothing kills those cells faster than a bad charger!)
The two- and four-channel chargers even have independent charging channels so you can charge both types of battery at the same time, and they have longer channels ("cages") to accept the new-generation 21700 Li-Ions which are appearing in more and more torches.
You can even adjust the charging current to shorten the charging time (although I recommend against it, since it may shorten the life of your batterries) or adjust the charging algorithm manually to suit unusual battery chemistries.
Oh, and these chargers also serve as powerbanks, meaning you can draw power off one of your Li-Ions to charge your cellphone or other USB device – a real life-saver during loadshedding or when you're out in the sticks.
The only thing that may put you off my chargers is the price – they are so INexpensive that you may be fooled into thinking that they are not premium quality (which also applies to my torches, BTW). But you don't have to take my word for it – check out the reviews on the torch forums or the (somewhat outdated) reviews on this website, and if you're not sure what's best for your application please drop me a line here.