CONSIDERABLE SHOUTING
10 kW
- Joined
- Jun 15, 2019
- Messages
- 813
The only cheap LiFePO4 pack I can think of that's close to what you want, is either Two of these from Battery Clearing House (Which may not work here because they don't have the discharge current listed) or 7 of these prismatic Lishens from Battery Hookup, would would be simple but frankly, utterly massive and far too much power for what you're doing. If you can't spot weld and make you're own pack, I'd go to lithium-ion instead to just make things easy on yourself- since you've got all of 5KMs to ride, you really don't need to worry about capacity at all and 24 volts is a very common battery size.If each of the 3 battery offer 24 volt and i place them in parallele, they should add up logically.
i dont know what is meant by if their bms are# not co-exist and be friendly#.
if they are not friendly would the motor still work and use them, what would be the consequences?
BMS'es sometimes will try to draw more power than others, and if you've got multiple packs tied together with different use cases (and thus lifespans) may try to discharge and "fight" each other too much in balancing all the cells. Few can also "sense" when the others are intentionally dropping a cells voltage, so you could potentially have a scenario where a BMS is dropping one cell's voltage and it trips the others into thinking it's a weak cell, so they begin dropping others in response to try and right the problem. End result would be dropping voltage too much.