STEELMATE JS12E Heavy-Duty Car Jump Starter

Product Introduction

The STEELMATE JS12E is a high-performance portable car jump starter designed to provide emergency starting assistance when your vehicle battery is weak or discharged.

With a 12,000mAh lithium battery, up to 1,600A peak current and support for petrol engines up to 5.0L and diesel engines up to 3.0L, the JS12E is built for drivers who need dependable emergency power for larger vehicles.

Key Features

• 1,600A Peak Current – Delivers powerful emergency starting assistance.

• 12,000mAh Battery Capacity – Provides substantial portable power for roadside emergencies.

• Up to 5.0L Petrol / 3.0L Diesel – Suitable for many passenger cars, SUVs and larger vehicles.

• Fast USB Charging – Includes QC3.0 and USB output for charging compatible mobile devices.

• 3-Mode LED Emergency Light – Includes lighting, flashing and SOS functions.

• Smart Safety Protection – Designed with reverse polarity, overcurrent, short-circuit and overheating protection.

• Portable Design – Easy to keep in the vehicle and carry during long-distance travel.

• Easy Emergency Operation – Designed to help drivers handle weak-battery situations without relying immediately on roadside assistance.

Why Choose STEELMATE JS12E?

A discharged vehicle battery can leave you stranded without warning. The JS12E provides drivers with a portable source of high-current starting power, helping them take control of common battery-related emergencies.

Its 12,000mAh battery and high peak current make it suitable for larger vehicles than compact entry-level jump starters. The integrated charging ports and emergency lighting also make the JS12E useful beyond jump starting.

Whether you're travelling long distances, driving an SUV or simply want additional roadside protection, the JS12E can be kept in the vehicle and ready when needed.

Technical Specifications

What’s in the Box

• 1 × STEELMATE JS12E Jump Starter

• Smart battery clamp cable

• Charging cable/accessories

• USB charging accessories

• User manual

• Storage accessories where supplied

Important Notes & Safety

• Fully charge the device before storing it for emergency use.

• Check vehicle compatibility before attempting a jump start.

• Connect the positive (+) and negative (–) clamps correctly.

• If the vehicle does not start, do not keep attempting continuously.

• Allow the device to cool between repeated attempts.

• Keep the unit dry and away from direct sunlight and excessive heat.

• Always follow the included user manual and vehicle manufacturer's instructions.

Compatibility & Recommended Use

Suitable for petrol engines up to 5.0L and diesel engines up to 3.0L.

Recommended for SUVs, passenger vehicles, larger petrol vehicles, road trips, long-distance travel and drivers who want a high-power emergency jump starter in their vehicle.