Continuous working current: 18A Overcharge voltage: 4.235V ± 0.025V Instantaneous current: 30A Overcharge release voltage: 4.19 ± 0.05V Charging voltage: 16.8-17V Overdischarge voltage: 2.8±0.08V Charging current: 1-10A Overdischarge release voltage: 3.0 ± 0.1V Balanced start-up voltage: 4.19 ± 0.05V The module has the function of two-waybuck-boostand can output a fixed 5v or 20v no matter the battery voltage changes.It should be noted that 100w must have a charging and discharging voltage of 20v. If the 12v output can only reach a maximum current of3a,thatis, 36w. Note: The product defaults to 4 strings of battery packs, the maximum is 16.8v, if it is changed to 5 strings or 6 strings of power supply, this voltage regulator transistor may be damaged