OPUS BT-C100 Digital LCD Intelligent Battery Charger for LiFePO4 Ni-MH NiCd with EU/US Plug
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I Have only charged Li-Ion with this. Its a pulse charger. Pulses are rather high (4.310v) on old batteries with high ir . Voltage display shows battery voltage (not charging voltage) and is aprox 0.03 off on my unit. Termination voltage is aprox 4.17 (shows aprox 4.20) Voltage meter when inserting a battery is completely unreliable. Termination current 50 mA. All in all i like it for what i want it to do.
An excellent single-battery charger and analyzer. I bought it for analyzing batteries, and it does that just fine. Can charge/discharge/measure capacity of NiMh AA/AAA, or barrel-shaped Li-Ion batteries and a few more types. I used it with AAs and 18650 Li-Ion cell, worked as expected. (It did not work when I wired it to LiPo batteries though, but of course that's not in its job description.) There is an in-depth review of this charger on lygte-info website. Overall - highly recommended if you want a good AA/AAA + Li-Ion battery analyzer!
Very good
Working great. Everything is according to description
Great charger! Fits unprotected 21700 cells and has lots or charging options.
Many possibilities, efficient
Good, small single cell charger. This charger came with a US plug and will do LI-Ion batteries.
Ok
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Take note: the Opus BT-C100 charger from Banggood, while can analyze/charge/discharge NiMh batteries; if you're thinking of charging Li-Ion batteries, then the product description does not indicate it supprots Li-Ion. And surely enough, my unit does not charge Li-Ion batteries (it indicates FULL immediately when I insert an 18650 or 18350 in various states of charge). See my youtube video demo of the charger: https://www.youtube.com/watch?v=Sqjfp4XEFLw https://www.youtube.com/watch?v=7hckCBD447Q