Solar Charge Controller Auto Light Control Circuit Switch Lithium Battery Charging Board Module
Product description
The output current of the control board should not be greater than 600mA, otherwise it may cause output protection；
The module do not have charging and discharging protection, the battery need to connect with protect board.
(mobile phone batteries with 3.7V protection board, most 18650 battery without, 3.7V protection board cannot be used in series)
Pay attention to waterproof and insulation；
Do not use boost drive for LED lamps；
The battery voltage of the controller is the output voltage. without limiting current limiting voltage. So the 2v3v LED lamp bead can not be used directly. It needs to be driven by step-down constant current or used by series current limiting resistor. (for example: the working requirement of 1W LED lamp bead is 3v260ma, and the 3.7V lithium battery needs to be driven or connected in series More than 5 ohm power resistance current limiting)