Item Type: Spot Welder Control Board Product Model: DHJ 02B Working Voltage: 6.5-16V Working Current: <20mA Standby Power Consumption: <0.5ma Recommended Operating Temperature: -10-60℃ Welding Peak Current: 1800A Maximum Smart Sleep: Automatic sleep after 8 minutes of inactivity Welding Mode: Default automatic welding mode Welded Nickel Sheet Thickness: 0.1-0.25mm (related to battery discharge energy) Common Power Supply: High rate lithium battery, high rate lithium iron phosphate and other lithium batteries More Working Power: 1. 12V 30-65Ah battery has good performance and small internal resistance (internal resistance is less than 10 milliohms) m, the discharge current is greater than 100A). Such as 12V car starting battery. 2. 4000mah-10000mah, 30-70C, 2S 3S 4S model aircraft lithium Battery (4S battery needs less than 16V). 3. 30-35Ah capacity type 18650 battery pack. 4. Battery discharge current <900A, short-circuit current <1800A, beyond this range may be damaged control board. 5. Small capacity 18650 battery and DC power supplies cannot be used as power sources. it must have A high rate lithium battery pack or car starter battery discharge capacity > 100A! Common Working Power: 30Ah-35Ah capacity type 18650 battery pack 12V car starting power supply 2S 3S 4S Model Aircraft Lithium Battery Pack 3S high rate lithium battery pack For Hitachi 40900 3S battery pack 12-14.6V acid battery