Are rv batteries agm?

RV batteries can be either standard flooded lead-acid, absorbed glass mat (AGM), or lithium-ion. However, AGM batteries are very commonly used in many RVs these days.

AGM batteries offer some advantages that make them well-suited for RV applications:

1. Maintenance Free
AGM batteries are sealed and do not require periodic electrolyte level checks or refilling like flooded lead-acid batteries. This low-maintenance design is convenient for RVs.

2. Spill Proof
The electrolyte in AGM batteries is absorbed into glass mats rather than a liquid. This makes them spill-proof and safer to install in the confined RV battery compartments.

3. Deep Cycle Capable
AGMs can be deeply discharged and recharged repeatedly like deep cycle batteries without sulfating. This suits the RV house battery use case.

4. Slower Self-Discharge
AGM batteries have a lower self-discharge rate than flooded types, reducing battery drain during RV storage.

5. Vibration Resistant
Their rigid design makes AGMs resistant to the vibrations and shaking common in RV travel.

While more expensive than flooded lead-acid batteries, the safety, convenience and durability of quality AGM batteries make them the popular choice as RV house batteries nowadays, either as the primary or auxiliary batteries.

So in summary, while not universally used, AGM is indeed one of the most common battery types found providing house power in modern recreational vehicles.