Hi Members,
I've replaced obsolete 18650 battery cells on battery pack 1813 model. Old batteries was 1300mah >> I have put 2850mah, and with little more amps. Replacement was nothing special, and also no problems with charging. Also the grass line trimmer works perfectly. Already four times without any issues. And the battery capacity indicator was still show 2 green lights of 3.
Last time was charge battery, so it Will be prepared within next 7 days >> after 7 days I was suprised the voltage drops to minimum. The battery was not inserted into cordless tool, and was just puted on storage shelf.
Does anyone have any idea why the battery pack discharge byself?
I'm mean, only thing what is inside of the package is BMS. Is possible the circuit discharge it?
Thanks in advance for any info.
I've replaced obsolete 18650 battery cells on battery pack 1813 model. Old batteries was 1300mah >> I have put 2850mah, and with little more amps. Replacement was nothing special, and also no problems with charging. Also the grass line trimmer works perfectly. Already four times without any issues. And the battery capacity indicator was still show 2 green lights of 3.
Last time was charge battery, so it Will be prepared within next 7 days >> after 7 days I was suprised the voltage drops to minimum. The battery was not inserted into cordless tool, and was just puted on storage shelf.
Does anyone have any idea why the battery pack discharge byself?
I'm mean, only thing what is inside of the package is BMS. Is possible the circuit discharge it?
Thanks in advance for any info.