EW-230/21 Lithium Battery Welder

EW-230/21 is a flagship high-capacity lithium battery welding power source from Beijing Engine Welder Technology Co., Ltd., built forExtended Runtime requirements, large engineering projects, professional-grade continuous welding operationsPaired with 21 kWh (74V/280Ah) ternary lithium battery pack, the rated output power is 5.6kW，Rated welding current 200A, covering Φ2.0–5.0mm electrodes in all processes. A full charge welds about 540 piecesrods of Φ2.5 at 70A; one charge runs 9-15 hoursis the longest-lasting flagship model in the EW-230 series, suitable for large-scale engineering projects with long continuous operation and high efficiency requirements.

Product Overview

As the flagship model of the EW-230 series, the EW-230/21 has an ultra-large energy storage capacity of 21 kWh, and the endurance is increased by about 40% compared with the 15 kWh version. The Φ2.5 electrode 70a can weld about 540 electrodes, which can handle the full-day full-load welding construction with ease. No need for generators, no noise, zero emissions. The digital display displays the power and welding data in real time, and cooperates with the cloud data platform and GPS positioning to realize the digital management of the equipment.

Technical Specifications

Parameters	Specifications
Model	EW-230/21 (21 kWh version/flagship)
Nominal Capacity	21 kWh (approx. 20720Wh)
Battery Pack Specifications	74V/280Ah ternary lithium battery
Battery Voltage Range	65V ~ 87V
Rated welding current	200A / 28V
Current regulation range	30A ~ 230A
No-load voltage	75V ± 8V
Rated power	5.6kW
Rated duty cycle	200A@35% / 100A@100%
Applicable electrode diameter	Φ2.0 ~ 5.0mm
Welding process:	Cellulose, low hydrogen welding, alkaline, stainless steel, simple argon arc
Anti-electric shock function	Yes (VRD safety voltage)
220V AC for welding	Yes, without interfering with each other
AC Output Type	Pure sine wave
AC Output Voltage/Power	220V/2000W (single phase 50Hz)
Battery data information display	Digital display
Cloud data / GPS positioning	With
Battery heating	Basic heating function
Temperature for operating enviorment	-20℃ ~ 55℃
Altitude factor	0-5000m
Charge Maximum Voltage	87.6V
Fast charge duration (after full discharge)	About 9.5 hours
Charge/Discharge Cycle Life	About 1000 times (capacity decay to 80%)
N.W.	Approx. 170kg
movement technique	Solid rubber wheel (4 × 250mm, optional)

Welding endurance reference

Welding rod specifications	Welding current	Number of full electric welds (approx.)
Φ2.5mm electrode	70A	Approximately 540
Φ3.2mm electrode	100A	Approximately 270

Note: The above data are laboratory measured values, and the actual number of welding rods is affected by factors such as the welding electrode brand, welder’s technique, base metal thickness, and site environment.

Key Advantages

⚡ 21-degree electric flagship battery life, all-day high-intensity work without worry

The maximum battery capacity of the series is increased by about 40% over the 15 kWh version. Fully electric Φ2.5 welding electrode 70a can weld about 540, and Φ3.2 welding electrode 100a can weld about 270. Full-day full-load construction does not need to make up electricity in the middle of the day, completely bidding farewell to fuel generators and frequent charging troubles.

Preferred for ⚡ large-scale projects

Extended Runtime with 5.6kW rated power is especially suitable for large-scale projects that require high construction continuity: long-distance pipeline construction, large-scale steel structure installation, bridge construction, wind power equipment maintenance, etc.

⚡ 220V pure sine wave AC, welding machine and equipment at the same time power supply

An independent inverter supplies 220V/2000W pure sine wave AC — power lighting and power tools while welding, with two isolated outputs in one machine.

⚡ Intelligent Battery Management, Multiple Protection

The intelligent BMS battery management system (software relay version) monitors the battery status in real time and supports all-round protection of short circuit, overheating and overcurrent. About 1000 charge and discharge cycles, battery life of 6 ~ 10 years.

⚡ Digital Remote Management

The cloud data platform and GPS location module upload the status of the device in real time, supporting the mobile phone to remotely check the power, location, and use time, and warning the device abnormality in advance.

Typical Applications

Standard configuration

• EW-230/21 Lithium Battery Welder Host × 1
• Charger for 74V (72V, 2500W) × 1
• Welding caliper (3m) x 1
• Grounding clamp (3m) x 1
• Quick connector × 2
• Solid rubber wheel set (optional, 4×250mm) × 1
• Instruction manual × 1
• Warranty card × 1

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