beemerphile1 wrote:
LittleBill wrote:
smart chargers need to see a minimum amount of voltage to turn on. usually because its a bit dangerous to charge a 100% dead battery
^This
Parallel a good battery with the dead one. After the charger starts disconnect the good battery.
Even “smart” chargers will work IF it has the “engine start” or “booster” function.
I have several such chargers, in the “boost” mode they just put out a 14.5’ish volt full rated current regardless of battery voltage.
The best of both worlds.