Portable DIY 12V Battery Energy Storage Spot Welder Machine for electronic enthusiasts.

Features:

• System voltage: 12V-14.6V (capacity X rate = must be greater than 150A).
• System Voltage: 12V-14.6V
• Working Current: 90-150A
• Welding Current: 90A~130A
• 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.
• High-Quality. Portable,stable, reliable and durable.

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 2 seconds to release.

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 5 gears. The spot welding intensity is gradually strengthened from the 1st gear to the 5th gear, 5 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 an energy storage spot welding machine for welding nickel pieces such as lithium batteries and nickel-chromium batteries. According to different configurations, the thickness can be about 0.1MM-0.15mm

Note：

• Capacitor & Buzzer needs to solder before use, 
• The 18650 battery and DC power cannot be used as a power supply. It must have a high rate RC battery or a car battery!