Deep cycle batteries are meant to be drained down and charged back up repeatedly. They have thicker lead plates inside them that can withstand this. The size and what they are made of dictate how far down you can drain them, and how often. Each time a battery is drained down and then recharged is one cycle. The deep part […]
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Car batteries come in a variety of construction for a variety of applications. The original ones were lead acid, called flooded batteries, and you could take the caps off to check the water level and use a hydrometer to see how each battery cell was doing. In fact, the term battery comes from a “battery” of cells, or a collection
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AGM stands for Absorbed Glass Mat. These mats are inside the battery absorbing the acid, making them spill proof and can be mounted upside down if you like that sort of thing.
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