Lenovo Y700 (NM-A541) No turn on with battery

R EZ A

Registered member
Dec 20, 2015
3
0
27
Hello everyone
i have a strange problem here
i replace this laptop motherboard with new one
when just AC is pluged it works without problem
when laptop is on and then plug battery, laptop turns off
not turn on with battery only
when batteryand AC is pluged in current rise to 0.33A and back to 0.02 in loop
i tried "different batteries" and "different motherboards"
all was same
i have 3 new motherboards with same problem

do you have any idea that is the problem?
tnx