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Sealed AGM Batteries

AGM (absorbed glass mat) batteries are a sealed format of lead-acid. This design makes them more applicable to backup power systems or vacation cabins since they are no-maintenance, and for convenience of mounting options. While their cycle life is less than gel cell batteries, the other sealed lead-acid format, they are 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.

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