Mounting, ventilation and the wiring that keeps a charger alive.
Mounting, ventilation and environment
Chargers need airflow; a charger in a sealed box derates itself within weeks.
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AC supply, DC output and protection
Fuse the DC side at the battery and size the AC supply for the charger\u2019s input rating.
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Charging & BMS questions
Short answers to the ones that come up most.
What charger does lithium need?
One with a lithium profile matching voltage and BMS protocol.
What does a BMS protect?
Over/under voltage, over-current, short circuit, temperature, plus balancing.
Charge voltage?
3.45–3.65V per cell.
Charging below freezing?
Not without a heater.
How do I check compatibility?
Voltage, current and protocol — if the charger cannot read the BMS it will mis-charge eventually.
