Spookyduckling
New member
- Joined
- Dec 16, 2021
- Messages
- 3
Hi everyone,
I am currently moving away from 26KW lead acid 48v solution and have now purchased 650 x 3.7v - 2600mah - 7.8amp 18650’s (new). I have 3.7kw of solar panels and a 48v mppt controller that is also capable of Charing from mains (cheap rate elec storage) The mppt can charge at max 60A and I have access to every size cable so I’m currently using 50mm2 for everything but this will change for the new battery packs…so…
Questions:
1) I am thinking that I should pop them into 10p 13s for 48.1v and have 5 packs, or I could do 5p 13s and have 10 packs….
2) charging 5 packs would be 15A each pack or 10 packs would be 7.5A - what BMS would you recommend in this situation?
3) should I put inline fuses for each pack of batteries From the BMS to the BusBar?
4) Does a BMS need to have separate charge points or can a BMS use the same Pos and Neg for use age and charge..?
I think that’s all the questions I have right now…. The batteries turned up this morning and they look great! I’m doing this as my lead acid are just crap… but I had to learn the hard way didn’t i! Stupid me!
cheers
Spooky.
I am currently moving away from 26KW lead acid 48v solution and have now purchased 650 x 3.7v - 2600mah - 7.8amp 18650’s (new). I have 3.7kw of solar panels and a 48v mppt controller that is also capable of Charing from mains (cheap rate elec storage) The mppt can charge at max 60A and I have access to every size cable so I’m currently using 50mm2 for everything but this will change for the new battery packs…so…
Questions:
1) I am thinking that I should pop them into 10p 13s for 48.1v and have 5 packs, or I could do 5p 13s and have 10 packs….
2) charging 5 packs would be 15A each pack or 10 packs would be 7.5A - what BMS would you recommend in this situation?
3) should I put inline fuses for each pack of batteries From the BMS to the BusBar?
4) Does a BMS need to have separate charge points or can a BMS use the same Pos and Neg for use age and charge..?
I think that’s all the questions I have right now…. The batteries turned up this morning and they look great! I’m doing this as my lead acid are just crap… but I had to learn the hard way didn’t i! Stupid me!
cheers
Spooky.