Truecharge 40+ is a high reliability 40-amp electronic battery charger for deep cycle batteries. Switch settings give correct charge for wet, gel cell, or absorbed glass mat (AGM) batteries. Selectable 2- or 3-stage charging where 3-stage includes float charge. Manual equalize charge button. Manual or automatic temperature compensation. Optional temperature sensing probe to correct charge voltage for actual battery temperature. This charger has full 40-amp output even with low-cost generators, which is important when using the charger with a 1000- to 3000-watt generator. Dimensions: 2.75" x 6.7" x 15.1". 1-year warranty.