Solar Boost? 3024iL a 30 amp 12/24 volt Maximum Power Point Tracking (MPPT) photovoltaic (PV) battery charge controller. Through the use of patented MPPT technology, Solar Boost 3024i can increase charge current up to 30% or more compared to conventional controllers. Solar Boost 3024iL's sophisticated three stage charge control system can be configured to optimize charge parameters to precise battery requirements. The unit is fully protected against voltage transients, over temperature, over current, reverse battery and reverse PV connections. An automatic current limit feature allows use of the full 30 amp capability without worrying about overload or nuisance fuse blow from excessive current. An auxiliary output provides either voltage or amp-hour based 20 amp load control, or can serve as a 2 amp auxiliary battery charger