Note: The battery will heat when using it, it means the battery does not apply, please don’t keep using because the battery will be damaged soon. The protection board can not be used for lithium iron phosphate battery, hernia lamp, hand drill battery pack, electric fish machine battery pack, electric bicycle battery pack, children’s car battery, 775 (4A)motor, 1W fish eye LED light! Precautions: Please strictly follow the wiring 0V (B -), 3.7V (B1), 7.4V (B2), 11.1V (B ), do not deliberately short circuit. Please charge after connecting the line, then it will have output. When connecting three groups of batteries, please ensure that the voltage of each group of batteries, if not the same, please fill each battery separately and then use it in series. The discharge test, the voltage drops quickly.
