Good to have as a space saving spare.

An excellent all purpose charger. Works great with my Jetbeam 18650's as well as my rechargeable AA's. Super handy. The only con is if you have to charge several batteries at once other chargers may work better for you.

Stick it in your pocket, put it in a purse or EDC bag. Easy to carry. I have read some reviews elsewhere that say it won't work on non-Olight batteries. I tested it on the batteries that I use in my things with a AVHzY CT-2 with: Olight 18650 and RCR123A Goal Zero 2300mAH 1.2V AA and 800mAH 1.2V AAA Tenergy 1000mAH 1.2V AAA Works just fine with them.

I received this as a gift and couldn't be happier. It the prefect companion when you pack light on a trip and need a charger. I use the batteries that are listed so this is a perfect match.

Hats off to whoever came up with this clever unit! Nice that it polarity sensing, compact, and charges almost any cell. Very handy for the travel bag and made by a high-end company.

Really love this charger! Its perfect if you travel alot. I have other bigger chargers but find myself grabbing this one because its so convenient and it charges my batteries alittle more "full" then the others i have as well.

I have been using the Olight Universal Magnetic Charger for my Li-ion batteries and decided to buy a spare to keep in my truck. Great Charger! I would definitely recommend this charger.

I luv this company... I appreciate their high build quality, top-end materials and innovative designs. This magnetic charger is awesome. While it is specifically designed for the Olight batteries, it works with standard 3.7v 18650s, too. I think I read that this will recharge any "rechargeable" battery. I plan to test that theory. Meanwhile, get one for yourself - especially if you have a compatible Olight - but even if you don't - you can use it on other batteries.

This device is so simple and small I had to get another to carry in my car. It has charged anything that will fit in-between the contacts. An Additional plus is that I have been able to recover NiMH batteries that have been too drained for my other chargers to work on them.

I recently bought 2 of these. Wow Olight my hats off to you. This is not only pure GENIUS, but a " home run". This will charge so many kinds of batteries its not to be believed. Ive recharged C batteries, AA batteries, AAA batteries, and 18650 batteries they all got recharged. It can be utilized with a power bank, AC power at home, in a computer or laptop usb port, in the car or truck and though a solar panel. It is also "idiot proof " for a lack of a better term, it DOEOS NOT MATTER which magnetic piece you put on negative OR positive. The light turns green when fully charged. To give it a JUST a 5 star rating is an insult to this product. Don't think about it, just buy a few of them, before they get sold out, or they stop making them or what have you. I also HIGHLY recommend BATTERY JUNCTION. It is now my " one stop shopping " store for batteries and gear. Im in the " GREAT WHITE NORTH " so Canadians have no fear in ordering from BATTERY JUNCTION. Timely delivery

The charger works well for both Li-Ion and Ni-MH batteries. I like the compact size - no separate case required, it fits into my noise-cancelling headphones case.

This charger is awesome! I don't think you could make a smaller charger to keep in you tool bag for when you need it. The only problem is finding it when you need it.

This is a wonderful tool! It auto-detects the kind of battery, and adjusts the charging rate appropriately. NiCd? Sure. NiMH? Yup. Li-Ion? No problem! RCR-123? Uh-huh. AAA? You bet! AA? Well, of course. 18650? You really have to ask? If the battery is rechargeable and fits between the contacts, this thing can probably charge it properly. I have one in my "go-bag" for when I travel, because it's small, and it'll charge any of the removable batteries I have in any of my devices. The only drawback is that it charges only one battery at a time, but I can solve that problem by buying more of these.

I carry it in my bag to enywhere I go. Very Easy to use. I love it.

Great charger for my vape batyeries on the go.

Charges my Olight s1r. Now to get a Olight s2r to charge as well.

This charger does what it needs to. It is small and charges various battery types. It is a very basic charger that is similar to other chargers in this category. I carry this charger in an emergency bag in case I need a charger. It is small and takes up little room. I have not had any issues charging 18650s or eneloop AAs. They both seemed to take a full charge. I do not recommend this as a go to charger for all charging needs. This is a lightweight on-the-go charger. For heavier duty charging needs I would recommend a full size charger, possibly with readout to monitor your batteries. Overall, I like this charger for its size and universal use. It is meant as a travel charger and for that it works well.

I was skeptical about this small device, both whether it would work as advertised or hold up to use. Instead I found this little charger to be quite well built and charged both a 16340 and several NiMH cells readily. Obviously only one cell at a time with this little guy, but since my uses are for 1-AAA, 1-AA, and 1-16340 torches, that's fine. At this price, two are not a concern either. Perfect for traveling and charging from a car USB adapter or from a Notebook Computer. The magnetic contact buttons grip soundly - no more fiddling with seating to contacts in a charger's well.