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Sealed AGM Batteries

AGM deep cycle batteries are a sealed-cell variety of lead acid batteries. AGM batteries (absorbed glass mat) are sealed because they don't require maintenance like watering - making them appropriate for intermittent off-grid solar use like backup power systems or vacation cabins, and opening them up for more mounting options for added convenience.

While AGM batteries are deep-cycle, their cycle life is shorter than gel cell batteries (the other sealed lead-acid battery format), they're also less expensive.

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Q: What voltage should my system run?
A: Generally, systems under 2kWh per day are fine at 12 volts, systems up to 7kWh per day are good at 24 volts, and larger systems should be running at 48 volts. These aren't ironclad guidelines by any means.

Solar Living Sourcebook 14th Edition
Chapter 4: From Panel to Plug

calculatorFor help sizing your PV system, use our online Solar Load Calculator

Sealed Deep Cycle AGM Batteries from Real Goods