12V 40a Charger lifepo4 Battery 60A 30A Lithium Charger adapter 20a

Output Current : 3A Voltage : 1.2 Package : Yes Use : Standard Battery Model Number : C40A Display screen : Yes Intelligent Charge : No Quick charge : Yes Type : Electric Brand Name : capacity.Li Origin : Mainland China The charger power plug has EU/US/AU/UK, and the output interface can be customized. Please explain with customer service. The 40A charger is used as follows: First use: connect the power supply first---adjust the voltage you want (use the supplied screwdriver to adjust the voltage in combination with the multimeter)-----then connect the battery-------charging The monitor display will go out---unplug the power plug and plug it in again---normal display indicates normal charging. The second use (the voltage has been set for the first time, no need to set it later) ------- connect the battery first (very important, it can protect the charger) ------- then connect the power supply-- --------For subsequent use, follow the second step Special instructions for 60A /50A /85A/100A chargers: first plug the charger into the power supply-----look at the voltage---adjust the voltage-----then connect the load-----and then adjust the current. Specific steps are as follows: Step1: Do not connect the charger to the battery, connect the charger to the power supply first, and use the supplied screwdriver to adjust the voltage (improved to multi-turn, no button sensitive, more convenient operation), refer to the voltage display at the top of the display (4S lifepo4 battery 3.65 v* 4=14.6V, 3S lithium battery 4.2v *3=12.6V), adjust to the voltage you need (combined with a multimeter to adjust the voltage more ly. The display will have a small error.)