Taylorhayis
New Member
- Joined
- Nov 12, 2021
- Messages
- 3
Gday!
I’m building a 4s lifepo portable battery box, and hstuck on charging.
I’m using a low voltage cutoff, and cheap bms and if I ram 14.6v in the charging ports it charges… but I’m aware a cc/cv setup is better.
The only option I can find for charging these is mains voltage based, but I want to charge from 12v in my car… my charging test is using a 300w buckboost to get the 14.6v from a 12v supply.
Is there any reason I can’t use a cheap and nasty solar controller (as long as it’s lifepo compatible) to charge my battery, and instead of solar - feed it 18v or so (from my buckboost) to charge the battery safely?
Otherwise it looks like extremely expensive dc/dc chargers are the go… or using an inverter to run a 240v lifepo charger ?
I’m building a 4s lifepo portable battery box, and hstuck on charging.
I’m using a low voltage cutoff, and cheap bms and if I ram 14.6v in the charging ports it charges… but I’m aware a cc/cv setup is better.
The only option I can find for charging these is mains voltage based, but I want to charge from 12v in my car… my charging test is using a 300w buckboost to get the 14.6v from a 12v supply.
Is there any reason I can’t use a cheap and nasty solar controller (as long as it’s lifepo compatible) to charge my battery, and instead of solar - feed it 18v or so (from my buckboost) to charge the battery safely?
Otherwise it looks like extremely expensive dc/dc chargers are the go… or using an inverter to run a 240v lifepo charger ?