Discharging Truck Battery Before APU Recharge: Guidelines for Battery Longevity
Discharge truck batteries to 30%-50% capacity before recharging with the APU. For lead-acid batteries, do not let the voltage drop below 12.1 volts. They can run for about 10 hours without the engine. When the engine is running, the alternator recharges the batteries effectively, maintaining their performance. When discharging a truck battery, aim to reach … Read more