Our advanced 40A Automatic Portable Battery Charger harnesses high frequency technology and automatically delivers three-stage charging for your flooded starting or deep-cycle battery. It includes a digital LCD screen that displays charging and battery status with easy to understand icons, and features a patented Alternator Check to indicate if the alternator is maintaining battery level and Engine Start Timer to get you back on the water (or the road) quickly. 40A model can also deliver a powerful burst of Engine Start amps to jump-start your engine. It’s simple to use and easy to store with cable wrap and clamp storage built in.
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