We reveal the best way to get your car going if the battery's flat. THERE'S little worse than turning the ignition key and hearing an ominous click from the starter motor, a sure sign that your battery is on its way out. But gone are the days of finding a friendly motorist with a set of jump leads to get going - all you need to be on your way quickly is a portable jump starter in your glovebox. There are lots to choose from, with a variety of different capacities (measured in Amp hours - Ah) and with a raft of extra functions. Importantly, all our test units are fitted with at least one USB socket, making them useful charge points for phones, tablets etc. Most are also charged using a USB cable and so can be topped up from the mains or in-car using a suitable adaptor. When you're buying, consider that diesel engines will demand more from any product and that some starters specifically state that they are not suitable for them.
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