SUNKKO® 788H Battery Spot Welder Battery Pack Tester Charger 0.2mm

$99.99 - $103.39
Usually ships within 1 business days
Calculated at Checkout
google product category:
Hardware > Tool Accessories > Welding Accessories
Item location:
US and China

788H can weld nickel tab which thickness is within 0.2 mm, its current level and pulse quantity are adjustable. This model can test the actual voltage of battery pack below 50V and charge battery pack which norminal voltage is between 4.2 and 30V.
This model is so popular among the electrical hobbyist and ebike companies.

Official Manual

Technical Detail (Yes: Y; No: N)

Welding part       
Model 737B 737G 788H 788H-USB 709A 709AD 709AD+
Welding thickness of nickel coated steel 0.2mm 0.3mm
Welding thickness of pure nickel 0.15mm 0.2mm
Weld with mobile pen N Y
Soldering functionn N Y
Pulse quantity selection 1~2 2~18
Lithium-ion battery pack charging function N Y N
Each pulse time 5ms
Max. welding current 800A
Auto welding mode N Y
Auto cooling fan N Y
Pulse LCD display N Y Y Y N Y
Current LCD display Y Y Y Y N N
Led light Y
Pressure adjuster Y
Requirement of Earth Leakage Circuit Breaker 40A
Packing list       
Main machine 1pc
Copper welding rods 2 pairs
Battery fixture(6 section) 1 pc
Foot pedal 1 pc
Fuse(20A for 220V version; 30A for 110V version) 2 pcs
70B welding pen N 1 pc
Welding pins replacement for 70B N 1 pair
Iron soldering station & soldering pen N 1 set
Lithium-ion battery pack charging cables N 1 pair N
Mini grinder (for polishing copper rods) N
1 pc
USB cable N 1 pc
Hexagon wrench 1 pc
0.15x8x100mm(pure nickel strip) 50 pcs
0.1x4x100mm(nickel plated strip) 50 pcs
Physical information
Product dimension (LxWxH, inch) 9.1x5.5x7.9  9.6x5.5x7.9
Net weight (lbs) 9.6    15.8


Charging and testing function
Voltage output: 4.2 ~ 36 V
Current output: 0 ~ 3 A (Max)
Precision of constant current: ± 2.5%
Voltage stability: ± 1.5%
Measurement error: ≤ 1.5%

Attention: This spot welder can be used to weld the nickel, nickel plated steel, nickel plated iron, iron and other alloys, but it can't be used to weld metal including copper and aluminum.

Shipping details
US customers Processing time: 1 ~ 2 business days
Shipping time: 2 ~ 4 business days(Fedex Ground or USPS)
other countries Processing time: 1 ~ 2 business days
Shipping time: 3 ~ 7 business days(Fedex, DHL or TNT etc.)
One Year Warranty!