Camper Battery Specs Guide
Camper battery specs compared: AGM vs LiFePO4, 100Ah vs 200Ah, usable capacity, charging compatibility, and what actually goes wrong with camper battery setups.
Senior Diagnostic Technician
Marcus Holt
5
articles
Verified author
About
Fifteen years in automotive diagnostics, starting with warranty work at a Chevy dealer in Scottsdale — the kind of job where every comeback lands on your desk. Four years reading wiring diagrams before the coffee was hot, pulling ECM data on vehicles nobody else wanted to touch. Left the dealership in 2019, rented a bay in Tempe, and built an independent shop around the work most technicians avoid: electrical faults, intermittent failures, trucks and SUVs with gremlins buried deep in the body control modules. Trained at UTI Phoenix, ASE-certified across multiple categories including electrical systems and engine performance. The diagnostic approach here comes from the lift, not the textbook.
Engine Coolant Types
OAT, HOAT, and IAT coolants are not interchangeable. Mixing types causes gel deposits that clog the system. Here is which one your engine actually needs.
Rough idle when cold
A rough idle that smooths out after warm-up is usually a stuck IAC valve, dirty MAF, or worn spark plugs. Here’s how to tell which without a scanner.
Battery Light Came on While Driving
Battery light while driving means the alternator stopped charging. You have 20-40 minutes of power left before the engine dies. Here’s what to do next.
Check Engine Light Flashing
A flashing check engine light means active misfires are sending unburned fuel into the catalytic converter. Don’t drive at speed. Here’s what’s happening.