question about Thunder Power TP-535's charging

[bxstylez]

charging 1 cell works fine..... charges exactly up to 4.20V

when charging multiple cells, anywhere from 2 to 5 li-ion cells
i noticed it'll only charge each cells up to 4.14-4.16V each @0.5A charging rate (it has a max charging rate of 3.5A)

do i need to attach some kind of special balancer for the charger so the battery packs can be charged fully?


ie: FM 3x17670 battery holder with adapter jack/plug and 3 cells ...
charged with the above charger and the charger will beep; meaning the pack is fully charged... but when checking with a DMM, pack only shows ~12.40V, or 4.14V each cell (confirmed with DMM)

taking out the cells and charging them separately is no problem... just a matter of inconvenience


any suggestions?

.

 

[SilverFox]

Hello Bxstylez,

You might check the condition of your welded connections within your battery pack. I believe that charger is sensitive to any increased resistance from the connections between cells.

Tom