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A portable spot welder — portable Li-ion battery spot welder

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Welder reviews›Review›H1· BeginnerReport
Adaptive · 1080 / 720 / 480Auto subtitlesPlayback info 01:30
Welding Recipeno level stated on camera
ModelH100:06Box label says H1; the model is not spoken on camera
MaterialNickel strip included in the box00:52
Type-C charging00:43

Creator’s own settings as stated in the video (timestamps link to the moment). Not official values — test on scrap first.

Released 2025-04-05ReviewLevel Beginnerdigest confidence 0.7 · pending review

Bill of materials

Welder, accessories, consumables and parts used in this build; quantities and specs are editable Download BOM
AWithZ official
H1 spot welder
×
¥119.9–129.9
Nickel-plated steel strip
×
from ¥5.9

Description

90-second unboxing of the H1 portable spot welder: the creator’s old welder built from a microwave-oven transformer was too bulky; the new unit is very light, sits well in the hand and charges over Type-C. In the box: charging cable, nickel strip, welding pins, manual. He will test it tomorrow

The creator’s home-made spot welder, built from a microwave-oven transformer, was too bulky to carry around; today a portable spot welder arrived, and it is very light. Opening the shipping carton reveals a long black AWithZ box (H1 label), nicely packaged; the black cylindrical body sits well in the hand, with a Type-C charging port on one end and a power switch; the box also holds a charging cable, nickel strip, welding pins and a manual. He will try it out tomorrow. Comments: some ask how such a small battery can spot weld at all, suggest opening it up to see what battery is inside, or say it won’t last; one user says they bought this AWithZ unit before and the welds were rock solid, and after the power was bumped up they also bought the supercapacitor model UF20B.

Outcome

GoalUnbox a portable spot welder to replace a home-made microwave-transformer welder
BuildAWithZ H1
ResultUnboxed, not tested · not verified on camera

Steps4 steps · click a frame to jump

  1. 1. Background: the home-made microwave-transformer welder is too bulky

    The welder built from a microwave-oven transformer is too bulky and awkward to carry; today a portable spot welder arrived and it is very light.

    00:02 – 00:10
  2. 2. Unboxing: long black AWithZ box (H1)

    Open the shipping carton; inside is a long black AWithZ box, nicely packaged; keep unboxing.

    00:10 – 00:43
  3. 3. Body: comfortable in the hand, Type-C charging, power switch

    The black cylindrical body sits well in the hand; Type-C charging on one end; there is a switch; the box holds a charging cable and nickel strip.

    00:43 – 01:07
  4. 4. Welding pins, manual; test tomorrow

    The welding pins look decent; a manual; he will try it out tomorrow.

    01:07 – 01:29

Bill of materials

AWithZ H1 portable spot welder ×1With charging cable, nickel strip, welding pins, manual · Unboxing
Home-made microwave-transformer spot welder ×1Comparison (old)

Li-ion safety

DIY lithium packs can catch fire: check cells for shorts before welding, always add a BMS, never skip insulation and fusing on high-current builds.

Quotes

“The spot welder I made from a microwave transformer is way too bulky; it’s not easy to carry around” 00:02

Comments 11· 7 real comments collected

Comment insightsanswered 0 · open 2 · corrections 1

Open questions

How can such a small battery spot-weld
Should have opened it up to see what battery is inside

Corrections from viewers

Not durableDoubtful
How a small battery can spot-weldDurabilityUpgrade to UF20BCustom builds
ℒ
ℒℴѵℯ半醉半醒এ⁵²º᭄এ1 yr ago · Shandong

Sir, could you make a few to sell, I'd order a custom one.

丰
丰叶6781 yr ago · Jiangxi

How can such a small battery spot-weld

名
名字越长越不好记1 yr ago · Henan

I just got one too, welding 18650 cells it's fine,

王
王氏工匠 太原 武汉1 yr ago · Shanxi

Should have opened it up to see what battery is inside

形
形影不离1 yr ago · Chongqing

There's a Zhiban S1 in the top-left of the video, how do you use it?

两
两个火山号1 yr ago · Henan

Not durable

.
...1 yr ago · Guangdong

AWithZ welders are good. I bought this one before too, the welds are rock solid, fine for small welding jobs. Later when I needed more welding power I bought their supercapacitor model, the UF20B

ℒ
ℒℴѵℯ半醉半醒এ⁵²º᭄এ1 yr ago · Shandong

Sir, could you make a few to sell, I'd order a custom one.

丰
丰叶6781 yr ago · Jiangxi

How can such a small battery spot-weld

名
名字越长越不好记1 yr ago · Henan

I just got one too, welding 18650 cells it's fine,

王
王氏工匠 太原 武汉1 yr ago · Shanxi

Should have opened it up to see what battery is inside

形
形影不离1 yr ago · Chongqing

There's a Zhiban S1 in the top-left of the video, how do you use it?

两
两个火山号1 yr ago · Henan

Not durable

.
...1 yr ago · Guangdong

AWithZ welders are good. I bought this one before too, the welds are rock solid, fine for small welding jobs. Later when I needed more welding power I bought their supercapacitor model, the UF20B

ℒ
ℒℴѵℯ半醉半醒এ⁵²º᭄এ1 yr ago · Shandong

Sir, could you make a few to sell, I'd order a custom one.

丰
丰叶6781 yr ago · Jiangxi

How can such a small battery spot-weld

名
名字越长越不好记1 yr ago · Henan

I just got one too, welding 18650 cells it's fine,

王
王氏工匠 太原 武汉1 yr ago · Shanxi

Should have opened it up to see what battery is inside

形
形影不离1 yr ago · Chongqing

There's a Zhiban S1 in the top-left of the video, how do you use it?

两
两个火山号1 yr ago · Henan

Not durable

.
...1 yr ago · Guangdong

AWithZ welders are good. I bought this one before too, the welds are rock solid, fine for small welding jobs. Later when I needed more welding power I bought their supercapacitor model, the UF20B