AGM
Absorbent Glass Mat lead-acid battery.
Official source: Victron Energy — technical reference →
Absorbent Glass Mat lead-acid battery. Older-tech leisure battery. Lower cost, lower depth-of-discharge (~50%), shorter cycle life (~500 cycles) vs LiFePO4.
Still used in budget builds and starter batteries. Largely replaced by LiFePO4 in leisure use post-2022.
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