Hi all,
I have recently picked up 2 super soco batteries, both have gone into sleep mode after the original owner stored them and left them for ages, and they went into low voltage cut off protection mode.
The battery is a 17S nmc battery.
Spoke to the manufacturer today, they told me that the bms goes into sleep mode after the battery drops below 54v
and goes in to protection mode when the battery drops below 50v.
both batteries were sitting at 49v.
Worked out the pinouts from the bms signal connector and leasured the cell voltages all cells were at 2.88v.
I used a lab psu to raise the battery to 58v very slowly where it is sitting now, its not self discharging and seems fine.
The manufacturer tech support told me that when the BMS enters protection mode, it cannot be restarted, and the BMS Logic board needs to be replaced.
Has anyone got any ideas of how to reset / restart the BMS, even if it means replacing a component on the pcb that has switched it into protection mode.
It seems a shame to replace the bms when it looks in great shape, apart from a internal electrical component / gate switch shutting itself off.
Thanks,
Anthony.
I have recently picked up 2 super soco batteries, both have gone into sleep mode after the original owner stored them and left them for ages, and they went into low voltage cut off protection mode.
The battery is a 17S nmc battery.
Spoke to the manufacturer today, they told me that the bms goes into sleep mode after the battery drops below 54v
and goes in to protection mode when the battery drops below 50v.
both batteries were sitting at 49v.
Worked out the pinouts from the bms signal connector and leasured the cell voltages all cells were at 2.88v.
I used a lab psu to raise the battery to 58v very slowly where it is sitting now, its not self discharging and seems fine.
The manufacturer tech support told me that when the BMS enters protection mode, it cannot be restarted, and the BMS Logic board needs to be replaced.
Has anyone got any ideas of how to reset / restart the BMS, even if it means replacing a component on the pcb that has switched it into protection mode.
It seems a shame to replace the bms when it looks in great shape, apart from a internal electrical component / gate switch shutting itself off.
Thanks,
Anthony.