AGM Battery
Electrical
Absorbed glass mat battery, sealed lead-acid, VRLA battery, maintenance-free battery, gel battery
An AGM (Absorbed Glass Mat) battery is a sealed lead-acid battery where the electrolyte is held in glass mat separators, making it spill-proof, low-maintenance, and suitable for motorhome use.
AGM batteries provide around 50–60% usable capacity and 400–600 charge cycles. They tolerate vibration and can be mounted in any orientation except inverted. Better performance than standard flooded batteries but inferior to LiFePO4 for deep-cycle use.