As always a very good review, it seems again the NiMh termination of a combo charger is problematic., hopefully they can fix this in final production, I would like to replace my NiteCore i4 with an adjustable current charger.
I was never happy with my i4 charger with NiMh charging , so went and bought the AccuPower IQ-328 8 months ago and the clone from DX, both do excellent jobs with NiMh , I test my NiMh cells after charging on my ZTS analyzer , and they are always fully charged.
Thanks for the review, I was holding my finger on the “BUY” button but now I am disappointed, it was supposed to be my main eneloop charger
Not going to buy it obviously.
as i said, it is no problem. just insert 3 or less cells :)
otherwise it is clearly a charger error :p
HKJ, is there an auto restart feature for LiIon's like the 3.9V threshold of the WP2s? my 10440's have dropped below 4.1000V within 24hrs in the charger and the charger has not started the recharge yet omg! :|
I was using my XP4 to charge some 18500s (6 of them) tonight, using the 1.0 amp setting, and they all came off the charger at between 4.16 - 4.17 volts.
Is that ok? It seems a little low…
Does the XP4 have problems terminating Li-ion too soon also?
4.16 to 4.17 is ok, it will depend on the age of the battery and the charge current, using a lower charge current will get you a slightly higher voltage (Because the termination current is less).
I will not recommend it, but if you need the maximal capacity a 0.25A charge is best (The termination current is about the same on 0.5A and 1A, i.e. you do not really get anything extra at 0.5A).
The 18650's in the thermal image, were these protected cells or unprotected cells? Protected cells have naturally a higher thermal resistance at the plus pole because of the altered and longer thermal path (and at the minus pole because of the added PCB).
Unprotected 18650's get considerably hotter in the XP4 than protected 18650's.