sunrise
New Member
- Joined
- Jul 16, 2020
- Messages
- 206
Hey folks,
Currently I have 2 LiFePo4 banks (105ah x 2, with 2 120a JBD BMSes) in my small camper trailer and it works very well. I am adding a 2000w (continuous) inverter and wondering if it's safe - The cells are rated 1C, so if I trust that it should be fine, but I am worried the connectors(M4 bolts, I think, not the M6 in 280ah ones), and busbars are little too small for this kind of current. I need about 1500w for 5 minutes or so coffee maker, microwave, hairdryer, etc, but most of time it's under 500w. My cells are wrapped in fiberglass reinforced tape and then put in a plywood enclosure - it's not clamp compressed though.
Question 1 - when one bank is out of juice, would > 1C discharge permanently damage the 120A BMS on the other bank, or it will just shut off and OK?
Question 2 - Is it a good idea to use them with the 2000w inverter? When it discharge close to 1C, would the cell swell and damage the cell rod since cells are wrapped pretty tightly? Would I be better off getting a 280ah ones?
Thanks in advance!
Currently I have 2 LiFePo4 banks (105ah x 2, with 2 120a JBD BMSes) in my small camper trailer and it works very well. I am adding a 2000w (continuous) inverter and wondering if it's safe - The cells are rated 1C, so if I trust that it should be fine, but I am worried the connectors(M4 bolts, I think, not the M6 in 280ah ones), and busbars are little too small for this kind of current. I need about 1500w for 5 minutes or so coffee maker, microwave, hairdryer, etc, but most of time it's under 500w. My cells are wrapped in fiberglass reinforced tape and then put in a plywood enclosure - it's not clamp compressed though.
Question 1 - when one bank is out of juice, would > 1C discharge permanently damage the 120A BMS on the other bank, or it will just shut off and OK?
Question 2 - Is it a good idea to use them with the 2000w inverter? When it discharge close to 1C, would the cell swell and damage the cell rod since cells are wrapped pretty tightly? Would I be better off getting a 280ah ones?
Thanks in advance!