24v solar panel with an effective conversion rate of up to 30%. Intelligent MPPT charge controller with maintenance generates more than 20%-30% more power than other solar charge controllers. MPPT charge controller is 100% waterproof and can be completely submerged in water. 24-volt solar battery maintainer designed to charge and maintain 24V batteries like GEL, FLD, SLD, AGM, SLA, LiFEPO4, deep cycle, sealed lead-acid, etc.