I bought the above charger at MF for $4.45. I have about 5 chargers with 2 on the way. I bought this to charge 9v NIMH batteries and as a spare 18650 charger. Last night I stuck a 14500 in it and forgot about it. I just noticed it. Tested the battery 4.17 v. Not even warm. Was I lucky? Who knows. It seems to charge 9v batteries very quickly. Charges at 9.8 volt.
I bought a bunch of those from Manafont to sell with lights. i always test them before I sell them I have bought 8 so far they all terminate at 4.20 volts so don't worry about it. Those are great little chargers for the price.
I did that many times but on both xtar chargers i own. Felt bad about it but nothing happened. I tested the batteries after and all was ok. My wp2 terminates a bit low in the 4.18V area. The Mp1 does the full 4.20V. I advise caution even with decent chargers however. At least with xtar i don't need a fireproof bucket as i trust them more than any other brand. Still electronics are tricky b@stards so be carefull folks!
That is very good to know. I bought one each of that exact charger for my son and step-son to go with lights I got them. I can relax a little knowing if they forget the battery is on the charger longer than while they sleep that they should be safe.
I always charge them with the charger on an aluminium plate, but in case of explossion it will not do much.
I disconnect it when I am not at home, but I did sleep with it charging in my bedroom, I will have to think of doing it safer like using a lipo bag or similar.
The thing is, I normally charge them during the night due to 18650 take about 6h on my TR001, and I am not often awake and at home during six hours, or I am working, or on the weekends I try not to be at home as much as possible.