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Black Sealey RS103B jump starter with red cables, LED indicators, and a sturdy handle.

Sealey RS103B Roadstart Emergency Jump Starter

by Sealey

£220.95from 4 retailers
GTIN05054511260250
EAN5054511260250
MPNRS103B
Prices updated 30 Jun 2026

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My Tool Shed logo

My Tool Shed

BEST PRICESave £57.25 vs highest
In stock£3.95 delivery
£359.94£220.95

£224.90 total inc. delivery

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Tooled Up logo
In stock£11.85 delivery
£359.94£220.95

£232.80 total inc. delivery

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Amazon

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Electrical World logo
Out of stock£3.95 delivery3 DaysNew
£542.96£266.72

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45.77 vs cheapest

£270.67 total inc. delivery

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£278.20

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eBay

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Product Description

The Sealey RS103B Roadstart is an emergency jump starter delivering 2700 peak amps, designed for breakdown recovery and mobile power applications. This heavy-duty unit provides reliable starting power for vehicles up to 8-cylinder petrol engines (5L) or 6-cylinder diesel engines (3.5L), making it an essential piece of kit for workshops, mobile mechanics, and fleet operators. Built with a durable composite case, the RS103B features integral battery clamp storage and a carry handle for easy transportation between jobs. The front panel displays the internal battery charge level at a glance, whilst an integrated LED worklight provides illumination when working in low-light conditions or roadside emergencies. Safety features include reverse polarity and short circuit protection to prevent damage during use, plus an inbuilt fuseable link protection system for added security. The supplied mains charger incorporates automatic power cut-off to prevent battery damage during charging cycles. Beyond jump starting capabilities, this versatile power pack functions as a mobile power supply with two 12V accessory sockets that accept any standard 12V device plug, plus a single 5V 2.4A USB output for charging mobile devices and tablets on site. Features and Benefits: • 2700 peak amps and 560A cold cranking amps for reliable engine starting • Dual functionality as both jump starter and 12V/USB power supply • Integral LED worklight for roadside and workshop use • Battery charge level display for monitoring readiness • Comprehensive safety protection including reverse polarity and short circuit prevention • Automatic cut-off mains charger prevents overcharging damage • Compact storage with integral battery clamp compartment Specifications: • Auxiliary Output: USB - 5V/2.4A, 2 x 12V Port • Brand: Sealey • Cable & Clamp Length: 0.7m • Cold Cranking Amps: 560A • Integral Air Compressor: N/A • Maximum Pressure: N/A • Nett Weight: 12.3kg • Peak Amps: 2700A • Voltage: 12V

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