K4-E Compact Jump Starter and Power Bank for Petrol Cars Up to 2.0 Litres

This K4-E model is a dual-function portable power device designed for motorists. Its primary role is to provide emergency starting assistance for petrol-powered cars, vans, and SUVs when the vehicle's main battery is depleted, specifically for engines with a displacement below 2.0 litres. Secondly, it serves as a high-capacity power bank, using its 6000mAh polymer battery to recharge personal electronics via a standard USB output. With dimensions of 139mm by 79mm by 25mm and a weight of 460g including all cables, it is built for stowing in a glove compartment or door pocket, ensuring it is on hand when an unexpected flat battery occurs. The inclusion of a touch-activated power level display allows you to check the unit's readiness before use, adding a layer of practicality to emergency preparedness.

Features and Construction

The K4-E combines emergency vehicle starting with multi-device charging in one compact unit. Its construction is centred on a power polymer battery cell pack arranged in three strings, a configuration chosen for its ability to deliver the high current required for engine cranking while maintaining a stable power supply for USB devices. The housing contains all necessary circuitry for safe jump-starting procedures and voltage regulation for 5V USB output.

Material and Build

The core electrical component is its power polymer battery cell system. This type of battery is selected for portable power applications due to its reliable performance profile. The unit's build integrates a touch-sensitive switch for the power level indicator, a 5V/2A micro-USB input port for recharging the internal battery, and a 5V/2A USB-A output port for charging external devices. The red-coloured casing provides high visibility, making the unit easy to locate in a cluttered boot or bag.

Size and Practical Fit

With main dimensions of 139mm in length, 79mm in width, and 25mm in thickness, the K4-E is designed for space-efficient storage. Its slim profile allows it to fit into most vehicle compartments. The complete kit, including the necessary data cable, weighs 460g, adding minimal bulk. The specified single package size of 170mm x 110mm x 90mm indicates the retail box dimensions for shipping and shelf display.

Uses and Placement

This device addresses two common scenarios: a vehicle that won't start and electronic devices that are running out of battery power away from a mains socket. It is suited for personal use by drivers of qualifying petrol vehicles and serves as a useful tool for roadside assistance preparedness.

Event or Professional Use

For professional drivers, couriers, or those using a petrol vehicle for work where reliability is crucial, carrying the K4-E provides a self-sufficient solution for a dead battery situation, potentially avoiding costly recovery fees or work delays. Its capacity to also charge a mobile phone or sat-nav ensures communication and navigation tools remain operational. The clear engine displacement limit (below 2.0L) defines its scope of professional application.

Everyday Home Use

For everyday motorists, it acts as an insurance policy against the inconvenience of a flat car battery, particularly in cold weather or if the vehicle is used infrequently. Stored in the car, it is equally useful as a general-purpose power bank for charging a phone, tablet, or portable gaming console like a PSP on long journeys, during outdoor events, or in any situation where a USB power source is needed.

Benefits and Buying Value

The value of the K4-E lies in its dual-purpose functionality and specific, clear performance parameters. It offers a defined solution for a common motoring problem while also serving as a versatile USB power source, consolidating two items into one compact package.

Reuse and Low Maintenance

Unlike single-use booster packs, this unit is rechargeable via its 5V/2A input, allowing it to be reused multiple times. Maintenance is straightforward: it should be periodically recharged to keep the polymer cells in optimal condition and stored in a moderate temperature environment. The power display function aids this process by allowing you to monitor its state of charge easily.

Why Choose This Product

Choose the K4-E if you require a defined, portable solution for starting a petrol car with an engine under 2.0L and want the added utility of a 6000mAh power bank. Its value is in its clear specifications—providing a 5V/2A charge output and a stated engine capacity limit—which allows for an informed purchase based on your vehicle's needs and your charging requirements for phones, tablets, and GPS units.