If your Mercedes-Benz Sprinter 907 battery dies overnight, a parasitic draw is likely. Here are the common culprits, what to check first, and whether it’s safe to keep driving.
Why Your Sprinter 907 Battery Dies Overnight
If your Sprinter 907 won't start in the morning and the battery is flat, you're dealing with a parasitic draw—something is staying awake and sipping power after you lock up. A healthy Sprinter should go to sleep within 20 to 40 minutes and draw less than 50 milliamps (0.05A). Anything above that will kill a good battery overnight. Before blaming the truck, load-test the battery and check the alternator. A weak battery can mimic a draw, and a bad alternator diode can drain the battery through the charging circuit.
Read the full breakdown in the Knowledge Base
Diagnose your Mercedes-Benz Sprinter 907 right now in AI-MASTER