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The ReadyWelder Broco runs off two car batteries you already own, and that’s the spec buyers over-weight when they want to weld far from an outlet. The cordless models here run on their own lithium-ion packs instead, which means no vehicle needed. If you want to weld off a truck or a tractor in a field, the Broco leads on that one thing. If you want a self-contained box, the battery-pack welders are the ones to look at.
Head to Head on What Matters
12v Car Battery vs. Onboard Welder Power
The ReadyWelder Broco taps two car batteries directly and the listing says batteries aren’t included, so you supply them. The Cordless Battery Powered Welder ships with two 20V 8Ah batteries, and the Klutch KLiQ 20V Welder Kit ships with four 8.0Ah batteries plus a dual-port fast charger. That’s the real fork in the road. Car batteries you already own never run flat in the middle of a job, but they stay in the vehicle. Onboard packs travel with the tool, and the Klutch listing says its intelligent power detection adjusts output as the battery level drops.
Weight and Size
The Saker Portable Welding Machine weighs 3.3 lbs at 9.8″ x 9.45″, which makes it the one you can hold in one hand. The Cordless Battery Powered Welder is listed at 8 lb (3.8kg) and 26.6cm x 15.8cm x 22cm. The SEESII 135A MIG Welder is listed at 7.7 lbs (3.5kg). The ReadyWelder and Klutch listings don’t print a weight, so treat those as unknown rather than heavy. If you’re carrying the machine up a ladder or down a bank, the Saker figure is the one that changes your day.
What’s in the Box
The Klutch kit includes four 8.0Ah batteries and a dual-port fast charger. The Cordless Battery Powered Welder includes two 20V 8Ah batteries, a quick charger, clamps, an external DC cable, and a shoulder strap. The SEESII 135A MIG Welder includes the welder, MIG torch, ground clamp, a 1lb spool of flux core wire, brush, and contact tips — but its listing states the Lift TIG torch isn’t included. The ReadyWelder includes a carrying case, and its batteries aren’t included. A kit with batteries arrives ready to run; a bare machine needs those items bought separately.
What the Numbers Mean for You
A 3.3 lb machine and an 8 lb machine differ by more than five pounds. If your work is overhead or on a ladder, the lighter figure matters more than any amp rating. Amp numbers help on thick metal and stop helping once the material is thin — extra current there just burns through.
1. ReadyWelder by Broco Portable Welding Machine
Best for: Welding off a truck or tractor far from power
This is the one that made the car-battery welder category, and the listing says the brand has been at it since 1997. It runs on two car batteries, so the power source is whatever vehicle you drove there. The trade-off is real: batteries aren’t included, and you need two of them, so the machine alone won’t strike an arc. It handles steel, aluminum, and stainless steel, which is a wider material list than the stick welders here. The carrying case keeps it together between jobs. This isn’t for someone who wants to open a box and weld the same afternoon — the listing says batteries aren’t included.
Pros
- Runs off a pair of car batteries, so no outlet is needed
- Welds steel, aluminum, and stainless steel
- Includes a durable carrying case
- Listed as lightweight for its class
Cons
- Batteries aren’t included, and it needs two
2. Cordless Battery Powered Welder
Best for: All-day cordless stick welding with a spare pack
Two 20V 8Ah batteries come in the box, and the listing pitches switching between them for extended runtime — that’s the honest reason there are two. It’s an MMA stick welder, so it takes 1/16”, 3/32”, 1/8”, and 5/32” electrodes, and the listing names carbon steel and low alloy steel as its metals. Hot start, arc force, and anti-stick are listed, and those matter most when you’re learning, because a stuck rod is the beginner’s first frustration. At 8 lb it’s not a pocket tool.
Pros
- Includes two 20V 8Ah batteries and a quick charger
- Supports four electrode sizes from 1/16” to 5/32”
- Overheat, over-current, and overload protection listed
- LED display shows current and welding mode
Cons
- Listed for carbon steel and low alloy steel, not aluminum
3. Klutch KLiQ 20V Welder
Best for: Buyers who want the fullest battery kit
The batteries work across all Klutch KLiQ 20V tools. That’s the quiet win: if you already own KLiQ tools, these packs do double duty. The listing states pure DC output for MMA and flux welding with minimal spatter, and intelligent power detection that adjusts output as the battery level drops. It’s rated 200A in the title. This isn’t for someone who wants a one-hand tool — no weight is listed, and four batteries plus a charger is a kit to carry, not a pocket welder.
Pros
- Four 8.0Ah batteries and a dual-port fast charger included
- 200A rating stated in the title
- Batteries work with all Klutch KLiQ 20V tools
- Built-in protection against overheating
Cons
- Four batteries and a charger make it a kit to transport, not a pocket tool
4. Saker Portable Electric Welding Machine
Best for: One-handed work in tight spots and up ladders
It’s a 110V unit, which is the trade against every battery model here. Output is adjustable from 20 to 120 amps across a 5-speed knob, and the listing says it takes 3/32” rods. IGBT inverter technology and hot start arc ignition are listed for easier arc starting, plus 360° cooling and overheat protection for longer sessions. The listing names carbon steel and iron.
Pros
- 3.3 lbs and built to be picked up and carried with a single grip
- Adjustable 20-120 amp output on a 5-speed knob
- IGBT inverter with hot start arc ignition
- 360° cooling and built-in overheat protection
Cons
- 110V input
- Listed for carbon steel and iron; the listing names no aluminum
5. SEESII 135A MIG Welder 110V
Best for: A single machine that covers MIG, stick, and TIG work
Three processes in one box is the reason to pick this: gasless flux core MIG, MMA stick, and Lift TIG. The listing states 30A-135A output and says it penetrates up to 5/16″ mild steel, taking 1/16″ to 1/8″ rods. It’s 7.7 lbs (3.5kg), so you can grab it and walk it to the job. The starter kit is the most complete here — welder, MIG torch, ground clamp, a 1lb spool of flux core wire, brush, and contact tips. The catch is printed plainly: the Lift TIG torch isn’t included, so that third process needs a separate purchase. This isn’t for someone who only ever sticks two pieces of steel together — you’d be paying for two modes you won’t touch.
Pros
- Gasless MIG, MMA stick, and Lift TIG all in a single unit
- 30A-135A output; listed to penetrate up to 5/16″ mild steel
- 7.7 lbs (3.5kg) so you can carry it with a single grip
- Starter kit includes MIG torch, wire, brush, and contact tips
Cons
- Lift TIG torch isn’t included
- 110V input
Also Worth Considering
The Portable Handheld Welding Machine is a 110V, 120A ARC welder listed for 3/32″ to 1/8″ rods.
The MIG Stick Welder is a 2-in-1 unit rated 250A in its title, aimed at farm, auto repair, and home use.
Frequently Asked Questions
Is a higher amp rating always better?
No. Higher amps help on thick metal, but on thin sheet they burn through. The Klutch lists 200A and the SEESII lists 135A, yet the SEESII states a 5/16″ mild steel capability. Match amps to your material, not to the biggest number.
What does an unlisted spec mean?
It means the seller didn’t print it, nothing more. A missing weight or amp figure isn’t a fault and isn’t a zero. Treat it as unknown and check the manufacturer’s own specification page before you decide.
How do I compare a car-battery welder with a battery-pack welder?
Compare what powers the arc. The ReadyWelder draws from a pair of car batteries, which the listing says aren’t included. The cordless models ship with their own packs. One ties you to a vehicle; the other travels alone.
Do I need a separate purchase to use every mode?
Sometimes. The SEESII 135A MIG Welder states its Lift TIG torch isn’t included, so that mode needs one. The ReadyWelder states its batteries aren’t included. Read the box contents before you plan a job.
Closing
For welding with no outlet in sight, the ReadyWelder Broco wins — hook it to a pair of car batteries and you’re working. If you’re unsure which axis matters, the SEESII 135A MIG Welder is the safer pick, since three processes cover more jobs.
Hi, I’m Zachary Ford. I’m passionate about welding and dedicated to helping both beginners and experienced welders make informed decisions. I research, test, and write about welding helmets, welding machines, safety equipment, and essential workshop tools. My goal is to provide honest reviews, practical buying guides, and easy-to-follow tutorials that help you weld more safely, work more efficiently, and choose the right gear with confidence.