Emergency jump starters

An emergency jump starter is a portable power pack that provides a high burst of current to jump‑start a dead car battery and also serves as a versatile power bank. Most models include USB ports for charging phones and tablets, as well as LED lighting for roadside emergencies. Some units feature built‑in air compressors to top up a tire, plus 12V DC outputs or even small AC outlets for powering accessories. When you shop Wowcher, you’ll find jump starters optimized for petrol engines, diesel engines, and compact city cars, with safety features like reverse polarity protection and automatic shutoff.

Whether you’re looking for a lightweight lithium jump starter for everyday use or a heavier duty lead-acid jump starter for larger vehicles, choose a model with the right peak amps and cold-cranking amps to suit your motor and climate.

Start by checking your engine size and fuel type. For most small to mid-size petrol cars, a unit offering around 400–600A peak amps is sufficient, while larger petrol engines or diesels may need 800–1500A or more. Consider your climate, cold winters can require higher amps for reliable starts. If you regularly drive larger trucks or SUVs, look for higher capacity options with two-port USB charging and robust safety features.

Also evaluate weight and portability. Lithium jump starters are lighter and easier to carry, but lead-acid packs often cost less per amp-hour. Read product specs and customer questions to ensure compatibility with your battery type and vehicle alternator.

Lithium jump starters are lighter, offer quick recharges, and typically have longer cycle life, making them ideal for frequent travelers. They may have higher upfront costs but are easier to handle and store. Lead-acid packs are usually heavier with a lower price per amp-hour, but some users prefer them for budget swaps or cases where weight isn’t a concern. In cold weather, lithium units can outperform older lead-acid models due to improved cold-cranking performance in modern cell chemistry.

Whichever you choose, ensure the unit has essential safety features like reverse polarity protection, short-circuit protection, and overload protection, plus reliable clamps and protective case for transport.

Yes. Many emergency jump starters double as power banks with multiple USB outputs (USB‑A and USB‑C) to charge smartphones, tablets, GPS units, or small USB‑powered accessories. Some models also include a DC 12V outlet or a compact AC inverter to run low‑wattage devices. Look for devices with fast‑charge capable ports (QC or PD) to minimize charging time, and check the total output rating to ensure it meets your devices’ needs.

Safety first: read the manual for your model. Before use, ensure the vehicle is off and the keys are removed. Connect the red clamp to the positive terminal and the black clamp to a solid metal ground away from the battery, then start the vehicle. If you smell burning or see sparking, stop and recheck connections. Avoid touching metal parts of the clamps, keep the unit away from water, and never plug in while charging to prevent short circuits. After successful jump, remove clamps in reverse order and allow the engine to run to recharge the battery on its own or recharge the jump starter for next time.

Store the unit in a dry, accessible place in your car or home. For cold weather, keep it in a temperature-controlled area to maintain battery efficiency and prolong life.

Key features include high peak amps matched to your vehicle, fast USB charging (PD/CQ), multiple ports, built-in LED light for roadside use, and a built-in air compressor for tire maintenance. Waterproof or rugged housing, auto shutoff, and short-circuit protection add reliability. If you’ll drive in winter or remote areas, choose models rated for low temperatures and with durable clamps and cables.

Also consider recharging options: wall chargers, car chargers, or solar input if available. A clear display showing remaining charge and a robust warranty can give extra confidence when you’re far from help.

Yes. Most Wowcher listings include standard return policies and a manufacturer warranty. When purchasing, review the listing’s terms for eligibility, return windows, and whether the jump starter must be in original packaging. For issues like defective clamps or a failing charger, contact the seller or Wowcher support promptly to arrange a replacement or refund within the policy window.

First, verify you’ve connected the clamps correctly and that the vehicle battery isn’t completely exhausted. Check the jump starter’s charge level and charge the unit if needed. If the engine still won’t start, switch to a higher‑amperage model when buying next time, and consider calling roadside assistance if you’re stranded. Some models offer re‑start protection that stops operation if the battery is too drained, so always consult the user guide for proper troubleshooting steps and safety warnings.

Look for bundles that include booster cables with heavy gauge leads, protective carrying cases, cigarette lighter adapters, adapters for different battery terminal sizes, and a USB‑C cable for fast charging. Some Wowcher deals offer integrated air compressors with built‑in pressure gauges, plus adaptors for bicycle or motorcycle tires. A compact manual or quick-start guide can also help you use the unit safely and effectively when you’re away from home.