14.6 KW Capacitor Battery Spot Welder
- 14.6KW maximum pulse power, 2 built-in capacitors
- 999 adjustable gears
- Auto and foot pedal modes
- 100-240V input, 15 amp adapter, ready in 5 minutes
- Pen lead 60 centimeters, replaceable pins
- Includes 5-meter nickel plated sheet and an 18650 battery holder
Updated 2 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
A capacitor spot welder with automatic and foot pedal modes and a huge gear range for battery pack work. The listing gives two different counts of spare pin pairs.
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ASIN: B0DNLXHC23Model: P20BCategory: Spot Welding Equipment
Overview
AWithZ builds this capacitor spot welder around two energy storage capacitors that release a short, strong pulse into the welding pen. It switches between automatic mode and a foot pedal that triggers a single weld.
The foot pedal frees both hands to position the probes, which is the main advantage over pen-only units. The package is generous, though it contradicts itself on how many spare pin pairs come with it.
Who it's for
Hobbyists and small shops building cylindrical and LiFePO4 packs will use the gear range and the foot pedal. A buyer who only repairs a single phone battery has no need for the pulse power.
Pros and cons
- Foot pedal frees both hands
- Very wide gear range
- Soft bendable pen lead
- Replaceable pen pins
- Spare pin pairs listed two ways
- Needs mains power for charging
- Thicker metals need higher gears
Performance notes
The capacitors store energy and discharge it in one pulse, so the gear number sets how strong that pulse is for each material. In foot pedal mode each press sends one output, which gives time to place the probes. Fast charging with the supplied adapter gets it to the weld-ready mark in minutes.
Specifications
| Brand | AWithZ |
|---|---|
| Model | P20B |
| Capacity & performance | |
| Capacitors | 2 built-in super energy storage capacitors |
| Power & efficiency | |
| Maximum pulse power | 14.6KW |
| Input voltage | 100-240V, 15 amp adapter |
| Battery types | 18650, 14500, 21700, LiFePO4 |
| Included components | |
| Included Components | Spot welder, 15A charger, foot pedal, 3 pairs of replacement pins, 5-meter nickel plated sheet (0.15 thick), 18650 battery holder, file, manual |
| Other details | |
| Adjustable gears | 999 |
| Time to weld-ready | Within 5 minutes |
| Welding | Automatic and foot pedal |
| Pen lead length | 60 centimeters |
| Foot pedal cable | 2m long |
Closest rivals on specs
GLITTER 801D Battery Spot Welder- Item Weight 5.46 vs 8.4 pounds (-35%)
VEVOR Portable Spot Welder- Item Weight 5.46 vs 26.5 pounds (-79%)
Frequently asked questions
Can I replace the spot welding pen tips on the AWithZ P20B?
Yes. The lead pins can be disassembled and replaced, though the listing says 6 pairs in one place and 3 pairs in the package list.
Is the pen lead hot during high gear use?
The listing says that at continuous high gear the lead temperature stays close to hand temperature.
What materials can the P20B weld?
The listing names 0.6mm nickel plated sheet, 0.6 stainless steel, 0.6 iron sheet, 0.3 pure nickel and 0.2 copper sheet.
Does it work abroad?
The 100-240V input and the adapter are described as usable anywhere in the world.