SOLAR PL2212 Pro-Logix 12 Amp Automatic Battery Charger Fully automatic operation Active filtering technology with charge control circuitry adjusts power delivery based on the characteristics of the battery being charged Compatible with multiple battery types, including Conventional, AGM, Gel Cell, Spiral Wound, and Deep Cycle Batteries Simple set up for each charging application, with "Push and Go" One-Touch Control: just select the battery size and the charger automatically executes the unique Quad-Phase charging process Unique Quad-Phase charging process delivers optimal charge