DIY Battery Spot Welder 99 Adjustable Levels with LED Display for 18650 21700 Lithium Batteries Nickel Strips Welding

High-concerned chemical : none Is Smart Device : no Weight : Spot Welder Dimensions : Spot Welder Model Number : Spot Welder Origin : Mainland China Rated Duty Cycle : Spot Welder Rated Capacity : Spot Welder Max. Welding Thickness : Spot Welder Certification : NONE Use : Spot Welder

Features: 1. 99 adjustable settings: LED digital display for precise control of spot welding energy, suitable for various nickel sheet welding needs 2. Wide DC 9–24V input voltage: Can be used with your own power supply, making DIY assembly flexible and convenient 3. Compatible with Multiple Materials: Supports spot welding of 18650/21700 cylindrical lithium-ion batteries, cell phone battery cells, nickel sheets, and thin steel sheets 4. Automatic Standby for Power Saving: Automatically shuts down after 15 minutes of inactivity; features quick-adjustment buttons for easy operation 5. Compact, Handheld DIY Spot Welder Mainboard: Includes mounting points for a custom enclosure, making it easy to build your own portable battery spot welding device

Product Specifications: Input Voltage: DC 9–24V Adjustable Settings: 1–99 Supports spot welding of 0.1–0.2 mm nickel sheets PCB Dimensions: 90 × 60 × 12 mm Cable Length: Approx. 32.5 cm

Button Functions Single press of the ON/OFF button: Turns the device on or off; automatically shuts down after 15 minutes of inactivity Press the + button once: Increase the setting; press and hold the + button: Quickly increase the setting Press the - button once: Decrease the setting; press and hold the - button: Quickly decrease the setting Settings: 1–99; 1 is the lowest, 99 is the highest

Cable Length and Gauge Requirements: 1. The input cable and the soldering pen cable must not exceed 300 mm in length 2. The cable must be thick; the gauge must not be less than 5 square or 10 AWG 3. Master the welding technique: Do not press the welding pen too hard; a force slightly greater than that used for writing is sufficient to ensure a secure weld 4. The surface of the workpiece must be flat. Batteries that have been stored for a long time may have an oxide layer on their surface; sanding this layer before welding will ensure a more secure bond

Package Contents: Spot welder × 1 Spot welding pens × 2 Nickel plates × 10 Screw pack × 1

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