p-1700307.html - CouponsFromChina.com

Item size: , Type: with upper material / without upper material (optional), With upper: 100 * 84 * 28mm / * 3.31 * 1.10 in, Model: DH20 PRO+, Output voltage: 4.2 V max, Material: metal, Name: Spot welding machine, Without upper: 100 * 84 * 20mm / 3.94 * 3.31 * 0.79 in, Without shell: 300g / 10.58oz, Output current: 639A max, Cell: 2 * high rate cell (included), With upper: 500g / 1.10lbs, Package size: 200 * 100 * 50mm / 7.87 * 3.94 * 1.97 in, Package weight: .

Aliexpress

There’re some similar (or not) items on Aliexpress

Product (link)	Price	Coupons
Spot Welding Pin Spot Welding Neddle Alumina Copper Material Welding Feet Needle For MinderRC Welderkit BIFRC Welding Pen	$4.34	–
FPV 5.8G Antenna Omnidirectional Female Connector RHCP RP SMA FPV Drone Antennas for Long Range Quadcopter Drone new	$4.57	–
DIY Mini Spot Welder 5 Gears Adjustable Portable Handheld Spot Welding Machine for 18650 Battery Charge with Spot Welding Pen	$14.27	–
GX591 DIY spot welder kit handheld portable 18650 cell phone lithium battery spot welder mini spot welder control board 12V	$15.03	–
GEPRC SOMA 3.3G Antenna for GEPRC MATEN 3.3G 3W VTX PRO	$15.98	–
DIY Portable Handheld Battery Spot Welder for 18650 Lithium Battery, Nickel Strip and Nickel Belt Welding	$21.33	–
Portable Spot Welder Digital 18650 Lithium Battery Portable Kit 30 Speed Adjustable Color Display	$22.41	–
AWithZ 90 Gears Adjustable Spot Welder Portable Handheld Spot Welding Machine Energy Storage Spot Welding DIY for 18650 Battery	$24.82	–
RELIFE RL-936WB MINI Battery Spot Welder Mini Spot welding for IP/HW/MI/MZ/OP/VI and Other Mainstream Mobile Phone Batteries set	$28.60	–
9 Gears Adjustable Portable DIY Spot Welder Mini Spot Welding Machine With Quick Release Pen Welding Tool For 18650 Battery	$28.62	–
BIFRC DH20 Mini Spot Welding Machine Adjustable 9 Gears With Quick Release Pen Nickel Plate for DIY 18650 Battery Welder Spot We	$32.49	–
BIFRC Dh20 Pro+ Mini Spot Welder Machine Handheld Fast Charge Spot Welding Pen Optional 18650 Lithium Battery 5500mAh	$36.58	–
BIFRC DH20 Pro+ 3.7V Portable Pulse Spot Welder Max 650A Type-C USB Quick Release Spot Welding Pen for 18650 Batteries RC Models	$39.53	–
FNIRSI SWM-10 Portable Battery Spot Welder DIY Mini Welding Machine 18650 Battery Pack Welding Tool 5000mah Weldable 0.25mm	$42.20	–
Maxgeek MinderRC DH30 Max 10000mA Portable Spot Welder Pulse Welding Machine with Power Adapter Storage Bag	$44.86	–
BIFRC Spot Welder DH30 Mini Spot Welding Machine With Quick Release Pen Nickel Plate For 18650 Battery Welde	$46.93	–

Click here to search by yourself. Here are coupons that you can use.

Updated: 27-08-2025

Banggood

Warehouse in China.
Link: BIFRC DH20 Pro+ 650A Battery Pulse Spot Welding Machine
$38.08 with coupon: BGMatt2022
$38.08 with coupon: BGToys8
$38.08 with coupon: BG8OFFCOUPON
$38.08 with coupon: TTBLACK5

Additional Banggood coupons:
1. First page
2. Second page

Price history and price alert

Not enough data to show price history chart… $30.99 is the only recorded price. It was not cheaper than that since we have saved it in DB.
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).