I have had mine for about a week. I have only used it on the default settings. I have charged Lithium Ion (protected and non protected) 18650, 14500, 10440, 18350, 26650, RCR123A, Eneloop and Eneloop Pro AA and AAA and Amazon Basics AA and AAA. All has worked great until tonight when slot 4 ceased to work with any type/size of cell. With a battery in slot 4, it would not be recognized and I could not use the C button to tab over to slot 4 and I could not adjust the charging rate for slot 4. I tried unplugging the SC4 and trying again but with no luck. I have just sent an email to info@nitecore.com and I will see what they have to say. This was purchased from Banggood
Also having the 1900ma across all four slots at the same time. Have not been able to find the answer yet. Noticed that the unit doesn’t correct tally the amount of mah when the charger is kept cool and not allowed to get really warm.
Based on what I read here and elsewhere, if all 4 batteries are occupied (being charged), then some stuff may operate differently:
- the mAh capacity reading will only be correct for slot#1, while slots#2-4 will have very low capacity readings
the actual charging rate is half the selected (displayed) charging rate
However, the batteries should be fully charged fine (if you overlook the wrong capacity readings and the lessened charging rate).
— I’m wondering if NiteCore would be able to fix these 2 issues (wrong capacity reading when 4 slots being charged; plus showing the “correct” actual charge rate if the “paired slots” are being used.
When using my SC4 chargers and charging 4 batteries using all 4 slots, (from memory) the mAh reading for all slots are consistent (similar) and seem OK.