GEL deep cycle batteries adopt advanced GEL technology, high purity raw material, thick plate design, special grid alloy and paste formula, high temperature curing technology and low acid density. They have excellent recovery ability from deep discharge, and the unique GEL electrolyte filling technique and excessive amount of gelatinized electrolyte ensure them having good performance at high and low temperature. They are widely used for frequent deep discharge cyclic applications under high or low temperature conditions.