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CTEK Battery Charger 12V 20Amp DC-DC - 40-186

SKU: A5303484


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  • Continuous, fully automatic charging while you're on the move for maximum performance, battery life and convenience
  • Compatible with smart alternators
  • Protects, charges and maintains your starter battery - even if the engine is not running - and charges service batteries from your starter battery without the risk of starting problems
  • Fast charging from the alternator and other DC sources - even on short journeys

Keep your batteries full and your fridges cold - Ctek D250SA DC-DC Charger

The Ctek D250SA is an intelligent DC-DC charger which maximises battery capacity as a charging solution where charging from mains power (AC) is not available. This makes it great for extended periods spent on the road or water. The 5 step process supplies 20 As of charging power to any lead acid battery from 40a/h all the way up to 300ah. The charger has multiple-input technology, meaning you can simultaneously supply charge from your alternator (including smart alternators for newer, hi-tech vehicles), solar panels or even from wind power. Once the intelligent voltage sensitive charger recognises that your deep cycle leisure batteries are topped off, it will supply a maintenance charge output to the vehicle's starter battery to ensure you have full cranking power when its time to fire up the beast. The device is an all-in-one in terms of implying and completing your 12v, off grid setup. It removes the necessity for messy voltage sensitive relays used to split charging between batteries and even means you can throw your cheap solar panel regulator in the bin too, thanks to its MPPT (maximum power point tracking) technology. The Ctek D250SA is designed to endure tough conditions including operating temperatures ranging from negative 20 degrees Celsius all the way up to 50 degrees Celsius and with a 2 year warranty as standard you can trust that this 12V solution will go the distance in your 12v setup.

With the latest advancements in intelligent battery charging technology, CTEK are committed to maximizing battery performance with every product they offer. Constantly pushing the boundaries of research and development, CTEK have soared leaps and bounds above the competition because they constantly innovate, improve and refine to your needs and battery charging applications. A 12 volt battery charger is an absolute must-have for those storing project cars which only see the road or track once in a blue moon, since batteries naturally discharge over time when left to sit without a charge applied to them, your battery's health is severely compromised if its only given time to charge every so often.

CTEK battery chargers great for restoring charge to totally flat batteries when they would otherwise end up in the tip which means they're friendly to your budget and for the planet. A CTEK trickle charger is also great for maintaining battery charge to occasional vehicles such as project cars, weekend cars, boats, jet-skis, RVs or anything you can think of so you can be sure your car, bike or boat will fire into life at the drop of a hat.

Imagine waking up nice and early before the crack of dawn for a road-trip to the coast, a bush adventure in your 4x4 or a race meeting in your heritage race car. You turn the key to fire up your rig and nothing happens. You wont find a replacement battery at 5 in the morning and you wouldn't dare wake up your partner to jump start your car, but if you don't leave now you won't make it to drivers briefing or the servo in time to convoy with your mates to the 4x4 tracks. If you had your car set up with a quality CTEK battery charger, the battery would be at 100%, the car would be packed and the coast, bush or race track would be calling your name. Avoid delays and dead batteries, shop the entire range of chargers and battery accessories today on the Repco website or at your local Repco store.


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