09/04/2026
A customer came to us after their battery light started coming on and their vehicle wouldn’t start.
We tested the charging system and found:
🔧 13.12 volts from the alternator output with no load
🔧 Only 9.95 volts with the headlights and A/C running
A properly functioning charging system should generally maintain around 13.5–14.5 volts while the engine is running. This vehicle was clearly not keeping up under load. If you have a battery light, starting issues, or electrical problems, give EDK Auto & Diesel Repair a call! We come to you for convenient, professional mobile repairs. 304-596-1011!