MarkJohnston
10 kW
- Joined
- Mar 25, 2021
- Messages
- 620
miro13car said:I would not trust China brand charger to stop charge at whatever point.john61ct said:Those PSUs you mention are fantastic units for the purpose
but they are not full fledged chargers, in the sense of automatic stop-charge when the pack(s) get to Full.
An electrickery savvy DIYer could rig an HVC cutoff, at the PSU input
or repurpose a secondary BMS for that, that allows for sufficiently low setpoint adjustment.
Otherwise the user is the stop-charge regulator, which could be dangerous, or at least greatly reduce pack lifespan.
I use celllogs based circuit for cutting off power to charger,
you can call it primitive but it is really effective.
beauty of celllog is alarm output which can be configured NC or NO
Right I have cheap Chinese chargers and they don't know when to shut off. I'll have to look into cellog. Also my batteries are low amperage ones strung in parallel. There's no way they can handle over 3 amps without being heavily damaged.