brendanisatsea
New Member
- Joined
- Dec 22, 2021
- Messages
- 7
Hello all,
I'm in the design phase for a new Marine LiFePO4 system and have encountered two BMS Styles:
1) BMS that are "internal" to the battery and are wired so that the BMS is the NEG terminal output. (Daly, Overkill Solar etc)
2) BMS that are "External" to the battery and are only wired to the cells, not in line with the NEG terminal. (X2 BMS, Orion, REC)
What is the nature of this difference and what are the pros/cons to each style? It appears as though the external BMS can handle higher amperage, have CAN features to speak with Victron GX interfaces and are generally more expensive. Some seem to be ABYC approved/contain extra safety features.
Is there anything more to this difference?
I'm in the design phase for a new Marine LiFePO4 system and have encountered two BMS Styles:
1) BMS that are "internal" to the battery and are wired so that the BMS is the NEG terminal output. (Daly, Overkill Solar etc)
2) BMS that are "External" to the battery and are only wired to the cells, not in line with the NEG terminal. (X2 BMS, Orion, REC)
What is the nature of this difference and what are the pros/cons to each style? It appears as though the external BMS can handle higher amperage, have CAN features to speak with Victron GX interfaces and are generally more expensive. Some seem to be ABYC approved/contain extra safety features.
Is there anything more to this difference?