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Warning triangles are a legal requirement in many countries and lots of British motorists carry them too, so they can alert approaching traffic that there is a stranded vehicle ahead. The Clarke JSM400 Jumpstarter is supplied with a zip fastening bag, AC battery charger, smart charging cable, switch cable, 3 way USb cable, car charger adapter and 8x notebook adaptors while also including a 12-Month Manufacturer's Warranty.
litre petrol and diesel engines, like many here, the Halfords unit has a cover on its jump-start socket, but not USBs. 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 pack in your glovebox. It powered our discharged battery from just 3V to turning over rapidly for all five tests, and all five LEDs were still bright at the end. Importantly, all our test units are fitted with at least one USB socket, making them useful charge points for phones, tablets etc.We noted the battery-state indicator at the end of the test as a measure of how much the test had depleted it. We liked the zip-up case that kept everything together with elasticated straps and included mains and car chargers. It’s the smaller of the two NOCOs we tried and we liked the clear layout with large buttons for the light and on/off, and a simple LED set-up that made getting it wrong impossible. Like the Ring RPPL300, its cover is a bit awkward, but once connected, it did the job well, producing up to 65A, but with just three (of four) LEDs lit at the end. Compact, yet powerful, the JSM400 is an amazingly small and lightweight portable lithium-ion power bank with inbuilt torch which easily fits in a pocket, weighing only 1.
At 573g, it is impressively light and we like the fact that, over four sockets, it can power and charge 5, 9, 12 or 15V devices. View, download and print manuals for Clarke Jumpstart, Clarke instruction books and Clarke user guides for the wide range of Clarke power products now available. If you need the extra Ah for a larger engine or diesel, or for powering many devices, this is the one for you.We logged practical and technical features such as clamp size, cable length, socket coverage, weight and Ah. We got an impressive 122A on test, but were surprised that only one of the two USB sockets was the more versatile 5/9/12V type. If you live in areas where the temperatures regularly plunge, it might be worth choosing dedicated winter tyres. Most will also double up as a USB charge pack, which could make them invaluable if you are stuck somewhere remote with a flat smartphone battery. Charging is via micro-USB plug, but we like the versatile twin 5/9/12V USB outputs, although they aren’t covered.
Multifunction Micro Jump Start Portable device charger 4AhThis amazingly small and lightweight portable lithium - ion power bank with inbuilt torch weights only 500g (without leads). It’s the only charger not to feature a torch and doesn’t have a protective case or bag, either – both unusual in the current market.The Sealey emergency jumpstarter is built with a composite case with integral battery clip storage and carry handle for added convenience.
The JSM400 Jumpstarter is supplied with a zip fastening bag, AC battery charger, smart charging cable, switch cable, 3 way USb cable, car charger adapter and 8x notebook adaptors. Compact, yet powerful, the Clarke JSM400 is an amazingly small and lightweight portable lithium-polymer power bank with inbuilt torch which easily fits in a pocket, weighing only 1. It dispatched our tests with ease, still showing four LEDs and able to power up phones and tablets for some time. These are a legal requirement in some European countries, because they make such a difference to safety in the colder months.
This amazingly small and lightweight portable lithium – ion power bank with inbuilt torch weights only 500g (without leads).
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