What can this spot welder weld?

It welds 0.1-0.2mm nickel strips onto cylindrical lithium cells such as 18650, 26650 and 32650, as well as Ni-MH and Ni-Cd cells, and can tack thin iron and stainless steel sheet. It is made for building and repairing battery packs.

Does it need mains power?

No. It runs on a built-in 5000mAh rechargeable battery that charges over USB Type-C and gives up to around 800 welds per charge, so it is fully portable.

Does it have different power settings?

Yes. It has 80 adjustable power levels shown on an OLED display, plus automatic and manual welding modes, so you can match the weld to the cell and nickel thickness.

Is any experience needed?

Basic care is needed when working with battery cells. Start on a low gear and test on scrap nickel first. Follow safe handling practice for lithium cells.

What ID and deposit do I need?

Sri Lankan customers need a National Identity Card and a refundable deposit. Foreign customers need a passport. The deposit is returned after the item comes back in good condition.

What is the minimum rental period?

1 day (24 hours). Daily, weekly and monthly rates apply, with discounts for longer rentals.

Do you deliver across Sri Lanka?

Yes. Colombo and suburbs same-day, island-wide via courier or lorry. Delivery charges depend on the size, weight and destination.

Can I pick up from your office?

Yes. Our Colombo office is open during business hours for self-pickup.

What happens if it is damaged?

Minor wear is expected and not charged. Drops, misuse or major faults caused by mishandling are charged from the refundable deposit per our damage policy.

What's included when you rent the Seesii Rechargeable Handheld Mini Spot Welder for 18650 Batteries?

01 x Seesii Handheld Spot Welder, 01 x Quick-Release Welding Pen, 01 x Type-C Charging Cable, Nickel Strip (sample).

Home/Industrial Tool/Seesii Rechargeable Handheld Mini Spot Welder for 18650 Batteries

Seesii Item Low Risk

Seesii Rechargeable Handheld Mini Spot Welder for 18650 Batteries

SKURISER-086-007

Rental rate

Rs. 1,000 / day

DailyWeeklyMonthly

Rental period

Start Date & Time

End Date & Time

Pick dates to check availability1 day

Rent breakdown

Rs. 1,000 × 1 dayRs. 1,000

TotalRs. 1,000

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Build and repair battery packs anywhere with a cordless spot welder

A Seesii handheld mini spot welder that fuses thin nickel strips onto battery cells to build and repair packs.

It welds 0.1-0.2mm nickel sheet onto 18650 and other cylindrical lithium cells (18650, 26650, 32650), as well as nickel-metal hydride and nickel-cadmium cells, and can also tack iron and stainless steel sheet.

It is fully cordless, running on a built-in 5000mAh rechargeable battery that charges over Type-C and delivers up to around 800 welds per charge, so there is no bench power supply to set up.

An OLED display shows the setting across 80 adjustable power levels, and both automatic and manual welding modes plus a quick-release welding pen make clean, repeatable welds easy for hobby and repair work.

Why Choose This Product

Cordless and rechargeable: a built-in 5000mAh battery (Type-C charging) gives up to 800 welds per charge, with no bench supply needed.
80 power levels: fine control over weld strength for different cells and nickel thicknesses.
Auto and manual modes: auto fires on contact for speed, manual triggers for precise placement.
OLED display: clear readout of the selected gear and mode.
Quick-release pen: an easy-swap welding pen for comfortable, repeatable welds.

How Can You Use This

Build battery packs: spot-weld 18650 and lithium cells into custom packs for projects and devices.
Repair and rebuild: replace tired cells in power tool, e-bike and device battery packs.
Prototyping and DIY: assemble test packs for electronics and maker projects.
Field and event repairs: a portable welder for on-site battery fixes without mains power.
Small fabrication: tack thin nickel, iron or stainless sheet for light jobs.