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Battery Chargers & Starters

Battery chargers and starters cover everything from maintaining a car battery over winter to getting a flat fleet vehicle running again. You'll find trickle chargers for seasonal storage, smart chargers that handle AGM and gel cells, and jump starters — both traditional booster packs and compact lithium units. If you're working on multiple vehicles or need portable power beyond starting, check the subcategories for maintenance gear, cables, and inverters.

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Picking the right charger depends on what you're charging and how often. A basic 6 V / 12 V charger works for occasional car battery top-ups, but if you're dealing with AGM, gel, or calcium batteries — common in modern vehicles and machinery — you need a smart charger that adjusts voltage automatically. Overcharging an AGM shortens its life; undercharging a calcium battery sulfates the plates. Amperage matters too: a 4 A unit is fine for maintaining charge on a stored bike or lawnmower, but charging a flat 100 Ah truck battery at that rate takes a full day. A 10–15 A charger cuts that to hours.

Jump starters split into two types. Traditional lead-acid booster packs deliver high current — 600–1000 A peaks — and handle large diesel engines reliably, but they're heavy and lose charge if left unused. Lithium jump starters weigh a fraction as much, hold charge for months, and often include USB outputs for tools or phones. Peak current claims can be optimistic; check the cranking amps specification, not just the headline figure. For a 3-litre diesel, you want at least 400 A genuine cranking capacity. Petrol engines need less, but cold weather and tired batteries demand more.

Booster cables are the low-tech backup. Length and gauge determine how much current they'll carry without heating up or dropping voltage. A 3-metre set of 25 mm² cable works for most cars; anything longer or thinner starts losing performance. Clamps should bite onto the terminal, not just pinch the lead — a loose connection arcs and melts. If you're using cables between a donor vehicle and a dead battery, let the donor run for a few minutes before cranking; it spreads the load and keeps the donor's alternator from spiking.