HY2110-AB overcharge condition can be released by the following cases:
(1) When battery cell voltage equals to or lowers than that of overcharge release voltage (VCR) due to self-discharge.
(2) When load is connected and the battery voltage falls below than overcharge protection voltage (VCU).
When TestPad PTS-2008 tester experiments overcharge release voltage (VCR), charging and discharging process is alternate. At this stage, overcharge condition will be released if HY2110-AB detects VDD < VCU while discharging. Under this circumstance, possibilities of misjudgment exist because VCU has not truly being detected yet.
For detail information, please refer to TestPad website. (Documentation:《FAQ of TestPad PTS-2008 for abnormal overcharge release and overdischarge release testing》.
It is suggested to screen out this item while testing.
TestPad PTS-2008 tester’s testing method of overdischarge release voltage cannot correctly examine the real value of the protection ICs which required a charger to release the overdischarge voltage condition.
For detail information, please refer to TestPad website. (Documentation:《FAQ of TestPad PTS-2008 for abnormal overcharge release and overdischarge release testing》.
It is suggested to screen out this item while testing.
Firstly, set overcharge delay time parameters to meet the greatest value depicted in HY2110-AB datasheet. Secondly, it is recommended to take instrument inaccuracies into account.