The very latest news and updates for the iRobot Roomba robotic vacuum, the Scooba Robotic Washer and the Dirt Dog workshop sweeper. All discussion and troubleshooting questions go here.
Hi,
My battery got deep discharge and I think battery fuse blow up them I put it on charge. I couldn't find here any BMS recovery procedure. Maybe somebody can help me with this the bms is similar to laptop battery one so fuse gets damage maybe mosfets and worstest scenario controller gets locked.
Thanks.
You might try an external power supply and apply 10 to 12 vdc to the battery leads for just a couple of minutes. Sometimes this will wake up the BMS. Then you can try charging it using the Roomba 675.
It seems that possibly it is time to replace that battery. Or maybe another user on this forum has more experience in restoring a Battery Management circuit board.
I already got a new one and it's up and running was interested to recover the old one I think it could help lot of people with this issue. Tested the elements they are like new 2500Mah each. If someone has any info please share thanks.
Sorry to revive such an old post but OP, did you try soldering a piece of wire to replace the fuse completely? I also read that the fuse will continue to burn out but can't confirm that. It seems like once the bms reads too low of a voltage along any of the cells, it has a self destructive feature of blowing out the fuse to avoid the pack from getting re-used. This is also the case for Dyson batteries where the bms will disable the battery completely if anyof the cells go beyond the 300mv variance tolerance.
