It mentions that sometimes, the VC8 will not properly charge NiMh batteries to fully-charged status, and sometimes, it overcharges the batteries.
(a 2000mAh NiMh gets charged to over 3000mAh, or sometimes just 600mAh).
What might be the possible problem for this and can it be fixed?
Also, the “grading” function for NiMh batteries is also affected (“grading” function will do a charge-discharge-charge cycle), however, the “charging” portion may sometimes not charge to “fully-charged” state, so the “discharged” capacity will be lower than actual. Another thing, is the third “charge” cycle seems to not charge to fully-charged state too.
Any explanation yet for the Xtar VC8 which, based on HKJ’s test, sometimes will not charge NiMh batteries to full (only charges partially then stops).
Also, the Xtar VC4S seems to do the same thing when using the “Grading” (capacity test) mode — for Li-Ion batteries, it will ” Charge (FULL) - Discharge - Charge (Full)“, but for NiMh batteries it will ”Charge (FULL) - Discharge - Charge (partial charge only)“. See review done by HKJ.
So after a “grading” test mode for NiMh batteries on the VC4S and VC8, the battery will only get partially charged after the testing is done.
i have same issue with other chargers as well, however not with all cells, eneloops charge fine, tenergy will not charge fully, same thing with Duracell’s nimh, i have hitek x4 hobby charger, i tried different currents , but no difference, whether i charge single cell, or a pack in series, i have another no name 8 bay charger, same story, enelopps charge fine, others do not, when i got Duracell AAs they came with cheap; 4 bay wall charger , i was gonna throw it away, since i had “better” chargers, good thing i did not
For some reason out of the blue, my new vc4s died. I just used it a month ago and it was fine. Just got it out a few days ago to refresh some nimh batteries, and it just shuts off and restarts over & over. Any ideas?