chronosgarage
10 W
- Joined
- Oct 23, 2020
- Messages
- 96
I’m using 20S9P battery with 45A from recycled laptop 18650 cell. It work well during testing until my controller was dead short.
When the controller is dead short, it doesn’t trip the 100A main circuit breaker, but it killed my 45A bms along with burned 3 of the cell fuse. I’m replacing the bms and also replace the cell fuse. My question is; do I need to add a fuse from the main battery (before the contactor)? I’m thinking about using a dc 60amp glass fuse. My plan is also to add another 20S12P with separate bms. Can the fuse protect the bms?
Thank you for your help.
When the controller is dead short, it doesn’t trip the 100A main circuit breaker, but it killed my 45A bms along with burned 3 of the cell fuse. I’m replacing the bms and also replace the cell fuse. My question is; do I need to add a fuse from the main battery (before the contactor)? I’m thinking about using a dc 60amp glass fuse. My plan is also to add another 20S12P with separate bms. Can the fuse protect the bms?
Thank you for your help.