docw009
1 MW
Looks like water got in there. You will need a 13S BMS with an on/off switch, with the same current rating as your battery. Probably 25A? And it needs to fit inside the case. Also, a balance BMS is better in my opinion,
This might fit, but it's not a balance BMS and it's only 15A.
https://www.aliexpress.com/item/32858872545.html?spm=a2g0o.productlist.0.0.643998c31Cv0rd&algo_pvid=7cd50bd9-b4de-422d-ada2-a679b7552b38&algo_expid=7cd50bd9-b4de-422d-ada2-a679b7552b38-11&btsid=63407ef2-60f9-46e0-b67f-46f2884c7944&ws_ab_test=searchweb0_0,searchweb201602_1,searchweb201603_53
This is a 25A balamce BMS, but it probably won't fit, and the cable may not match.
https://www.aliexpress.com/item/32995469828.html?spm=a2g0o.productlist.0.0.643998c31Cv0rd&algo_pvid=2462992e-b14c-4596-a0d0-d6c6becdc408&algo_expid=2462992e-b14c-4596-a0d0-d6c6becdc408-12&btsid=8a506803-d500-453b-833d-5ad823eb15ec&ws_ab_test=searchweb0_0,searchweb201602_1,searchweb201603_53
Looks like a metal rail on the left that is constraining the size of your BMS in your picture. If the BMS can sit on top, then you have a lot more freedom of choice.
Unless you are very fortunate, the balance cable will either be a different size header or they will reverse the wire order. If you're willing to resolder the 13 wires in the balance cable, there will be more choices,
Perhaps the battery vendor will sell you a new BMS.
This might fit, but it's not a balance BMS and it's only 15A.
https://www.aliexpress.com/item/32858872545.html?spm=a2g0o.productlist.0.0.643998c31Cv0rd&algo_pvid=7cd50bd9-b4de-422d-ada2-a679b7552b38&algo_expid=7cd50bd9-b4de-422d-ada2-a679b7552b38-11&btsid=63407ef2-60f9-46e0-b67f-46f2884c7944&ws_ab_test=searchweb0_0,searchweb201602_1,searchweb201603_53
This is a 25A balamce BMS, but it probably won't fit, and the cable may not match.
https://www.aliexpress.com/item/32995469828.html?spm=a2g0o.productlist.0.0.643998c31Cv0rd&algo_pvid=2462992e-b14c-4596-a0d0-d6c6becdc408&algo_expid=2462992e-b14c-4596-a0d0-d6c6becdc408-12&btsid=8a506803-d500-453b-833d-5ad823eb15ec&ws_ab_test=searchweb0_0,searchweb201602_1,searchweb201603_53
Looks like a metal rail on the left that is constraining the size of your BMS in your picture. If the BMS can sit on top, then you have a lot more freedom of choice.
Unless you are very fortunate, the balance cable will either be a different size header or they will reverse the wire order. If you're willing to resolder the 13 wires in the balance cable, there will be more choices,
Perhaps the battery vendor will sell you a new BMS.