Battery Connectors

ETEK Battery Connectors provide safe, repeatable power coupling for high-current DC circuits in EVs, forklifts, UPS/battery rooms and industrial equipment. The range includes polarized single-pole and double-pole connectors for modular power distribution, waterproof quick-connect solutions for harsh environments, and forklift battery connectors for frequent mating cycles and serviceability. Designs focus on mechanical keying to prevent mismating, stable contact force, heat-resistant flame-retardant housings, and plated copper contacts to support low-loss, high-current transfer.

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Superior Quality & Performance
Wide Temperature Range
Operating temperature from -20°C to +105°C ensures reliable performance in extreme weather conditions and industrial environments.
High Current Capacity
Current ratings from 30A to 350A with voltage ratings up to 600V, supporting diverse power requirements across applications.
Color Coded Safety
Multiple shell colors prevent wrong insertion and provide clear voltage identification systems.
Easy Installation
Male/female plug design simplifies assembly requirements, reduces part inventory, and enables quick field maintenance.
Our Product Ranges
/EK1S Single-Pole Battery Connectors
EK1S Single-Pole Battery Connectors
Single pole connectors for DC battery and power distribution. Genderless, intermateable design.
Current Rating 30A–180A
Voltage Rating 600V
Cable Range 1.5–50 mm²
Temperature –20℃ ~ 105℃
/EK2S Double Pole High-Current Battery Connector
EK2S Double Pole High-Current Battery Connector
Double pole high current connectors with color-coded housings to help prevent mismating. Different colors have different...
Current Rating 40A-350A
Voltage Rating 600V
Cable Range 4-70 mm²
Temperature –20℃ ~ 105℃
/EK3S IP67 Waterproof Battery Connector (Male & Female)
EK3S IP67 Waterproof Battery Connector (Male & Female)
Waterproof quick connector solution designed for complex and harsh environments. PC flame-retardant housing and protecti...
Current Rating 50A
Voltage Rating 600V
Cable Range 6-10 mm²
IP Rating IP67
Temperature –20℃ ~ 105℃
/EK4S Forklift Battery Connector
EK4S Forklift Battery Connector (DIN 43594 Style)
DIN 43594 standard forklift battery connectors for material handling equipment. Industry-standard design for electric fo...
Current Rating 80-320A
Voltage Rating 150V
Cable Range 16-70 mm²
Temperature 20℃ ~ 105℃
Battery Connector Applications
From indoor warehouses to outdoor job sites, battery connectors are often selected by mating frequency, environment exposure, and maintenance workflows. Typical deployments include forklifts and material handling equipment, battery charging interfaces, utility vehicles, sweepers/scrubbers, ground support equipment, and construction/agriculture machines.
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Material Handling
High-current battery connections for forklifts and industrial vehicles—ideal for battery swap, service, and charging interfaces, improving uptime and reducing mismating risk.
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Charging & DC Power
Designed for charger-to-battery and battery-to-DC distribution connections—built for standardized interfaces and service-friendly industrial DC power systems.
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Harsh Environment Equipment
For outdoor and harsh-duty equipment such as cleaning machines, GSE, and construction/ agriculture vehicles—built for dust, moisture, and vibration with durable, stable power coupling.
Frequently Asked Questions
What are battery connectors used for?

Battery connectors are used to connect and disconnect DC power between battery packs, chargers, vehicles, and industrial equipment for efficient service and reliable power transfer.

How do I choose the right battery connector?

Choose by continuous current, peak current, system voltage, cable size (AWG/mm²), duty cycle, mating frequency, and the environment (dust, moisture, vibration). Then confirm the exact rating of the selected configuration.

What’s the difference between continuous current and peak current?

Continuous current is what the connector can carry for extended operation within thermal limits. Peak current may be allowed for short periods depending on duty cycle and temperature rise.

How do I match cable size to a battery connector?

Select cable size based on load current and allowable temperature rise, then choose contacts/terminals that support that wire range. The connector, contact, and crimp should be validated as a complete system.

Why do battery connectors overheat?

Overheating is commonly caused by undersized cable, poor crimping, worn/dirty contacts, partial insertion, or operating beyond the rated duty cycle. Temperature-rise testing under real load is recommended.

Single-pole vs. two-pole battery connectors—what’s the difference?

Single-pole connectors are modular and flexible for power distribution. Two-pole connectors keep positive and negative in one keyed housing for faster, simpler mating in many battery-to-charger and battery-to-vehicle interfaces.

How can I prevent mismating (wrong connections)?

Use polarized/keyed housings and a consistent color/voltage strategy across equipment. Standardizing interfaces reduces user error and improves fleet serviceability.

Crimp or solder—which termination is recommended?

Crimping with qualified tooling is generally preferred for repeatability and serviceability. Verify with pull-out tests and visual inspection of crimp quality.

Can I mix and match different connector brands or series?

Not recommended unless compatibility is explicitly stated. Small differences can increase resistance, wear, and arcing risk.

Do I need a waterproof battery connector?

If your application involves outdoor use, washdown, or frequent exposure to moisture/dust, sealed designs or protective accessories can reduce corrosion and downtime. Choose based on real exposure conditions.

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