Photovoltaic Power Generation Lead-acid Lithium Battery Solar Controller $ 136.50 Product information: System voltage: 12V/24V/36V/48V (adaptive) Charging mode: MPPT maximum power point tracking Applicable battery types: sealed maintenance free lead-acid battery (default), colloidal lead-acid battery, open lead-acid battery Charging method: Three stages: constant current, constant voltage, and float charging Maximum open circuit voltage of photovoltaic input: (voc) Start time:10s Dynamic response recovery time:500us Humidity: 0-90% RH Altitude: 0-3000M Size (mm): 219 * 260 * 110 Packing list: Solar Controller*1 Product Image: