Originally Posted by everydayflyer
Wayne FYI Charging at increased rates causes slight warming and thus lower IR reading using FMA CellPro10 / POWERLAB8. FMA advises charging at 1C and using IR obtained at EOC.
I am just trying to hold the pack at a steady temperature and will do the test in a temp controlled environment. Although the charging process is endothermic, the effect is swamped by the I2R heat if the pack is charged at high rate. Probably about 1C is the best rate for both charge and discharge.
Presumably the result at the end of charge is the composite result of many measurements and should nullify any odd values from the initial reading.