Deep Cycle Batteries

Deep cycle batteries provide the consistency needed for comfortable off-grid living. They are the center of every off-grid solar (or wind or hydroelectric) system. This is because most renewable energy sources produce electricity intermittently. The sun sets, the wind stops, the stream dries up - so you need batteries to store what went unused of that instantaneous power so you'll have it for later.

In an off-grid system, everything comes and goes from the battery bank, so your solar batteries will be working hard. You can help protect your deep cycle batteries by regulating their charge with a charge controller and keeping tabs on them with a battery monitor, but they do wear out over time. Real Goods has built renewable energy systems since 1978 using all kinds of batteries, and today we carry what we consider the industry's best for deep-cycling, off-grid use.