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Battery Maintenance

Battery maintenance gear keeps workshop, farm, and vehicle batteries topped up and ready. This range covers starter/chargers that crank dead batteries and maintain charge on stored plant, plus solar trickle panels for isolated kit. Sealey units handle 12V and 24V systems — match the amp rating to battery size and how often you're starting cold.

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Starter/chargers combine jump-start power with trickle or float maintenance. The first number is cranking amps for cold starts, the second is charging current. A 140/21A unit handles car and light van batteries; 560/95A is for HGV, agricultural, or multiple batteries in series. Higher cranking amps mean faster starts on big diesels in cold weather, but you'll need a 16A or 32A socket to run the larger models.

Check the duty cycle if you're using it daily. Continuous-rated chargers can sit on a battery indefinitely; intermittent-rated units need cooling breaks between starts. Most Sealey starter/chargers switch automatically between charge and maintenance modes once the battery reaches voltage, so you can leave them connected on seasonal machinery without overcharging.

Solar panels suit remote equipment — trailers, caravans, gate motors — where mains isn't practical. A 4.8W panel offsets parasitic drain on a typical 12V leisure or starter battery. The watertight hardwired connectors let you fit them permanently without drilling large holes. Solar works as long as there's daylight; it won't recover a flat battery quickly, but it stops a good one going flat over winter.

Replacement fuses are listed by model. The 110A fuse on the START560 can blow during repeated heavy cranking — keep spares if you're running a busy workshop or doing roadside callouts. Standard 50A fuses fit the smaller units. Match fuse rating to the charger spec; uprating a fuse to avoid nuisance blowing will damage the transformer.