ntelligent controller for 12v/24V universal lead-acid battery for solar energy

1、 This controller is automatically identified as 12V/24V. When installing for the first time, please ensure that the battery has enough voltage so that the controller can identify the correct battery type. 
Description of battery type: B1 is a lead-acid battery (12V/24V automatic identification); B2 is a lithium ion battery. (3 strings of 11.V lithium batteries); B3 is a lithium iron phosphate battery (4 strings of 12.8V), and the default setting for outgoing is B2. 

2、 Install the controller as close as possible to the battery to avoid the voltage drop caused by too long wires and affect the normal voltage judgment. 

3、 This controller is only suitable for all kinds of lead-acid batteries (including openings, seals, gel bodies, etc.), and please do not use it for other batteries (including lithium batteries, nickel-hydrogen batteries, etc.). 
4、 This controller can only use photovoltaic panel as charging power supply, please do not use DC or other power supply as charging power sup