DIY Portable 12V Battery Energy Storage Spot Welding Machine PCB Circuit Board Welding Equipment Spot Welding Machine Accessory

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Foreword? Thank you for your attention. This product is a semi-finished circuit board. You need to have a certain electrical knowledge and hands-on ability. You also need to prepare some necessary tools such as pliers, screwdrivers, soldering irons, etc. -------------------------------------------------------------------------------------------------------------- Features? It is recommended to install the product by the people who have basic electrical knowledge and hands-on ability. For power input, users need to supply 12V battery power, welding current is about 90A~150A. System voltage?12V-14.6V (capacity X rate = must be greater than 150A). Working Current? 90-200A ------------------------------------------------------------------------------------------------------------ Suggested battery? 36-45ah Lead-acid battery with good performance and small internal resistance (The internal resistance is less than 10 milliohms, and the discharge current is greater than 100A), such as a new car starting battery!) 4000mah 35C-8000mah 30C 3S model airplane lithium battery 30-35ah capacity 18650 battery pack ------------------------------------------------------------------------------------------- Instructions for use? Function buttons? 1, used to switch the machine, 2 used to switch gears! When the power is turned on, the default is the first gear. Press the button for 1 seconds to release.Press and hold to turn it off The gear is increased by one gear, and the buzzer sounds and the LED flashes corresponding to the number of gears. For example: the 3rd gear, the buzzer sounds three times, the LED flashes 3 times, a total of 10 gears. The spot welding intensity is gradually strengthened from the 1st gear to the 10th gear, 10 is the strongest! After the 5th gear, press and hold the button again. It will power off. In the off state, press and hold the button to power on, and the gear will return to the first gear This circuit with a 12V battery will become a