Keep the battery charged on your ATV, motorcycle, or personal watercraft, and it’ll be healthy and ready to go when you need it. Deltran makes Battery Tender trickle chargers in various sizes and capacities for different applications. Their waterproof unit will keep batteries full even when the charger’s fully submerged in water — never again will a sudden downpour make you run outside to make sure the battery charger’s covered.
The Waterproof 800 pumps out 800 milliamps to charge small batteries and to keep small and large batteries topped off. After fully charging a battery to 14.4 volts, it switches to a float charger that monitors the charge, only kicking back in if the voltage drops below 12.6 volts. It’s protected against reversed polarity, so you can’t connect it incorrectly, and dual LEDs indicate the battery’s status.
The charger’s 12′ output cord sports a quick-connect plug as well as alligator clamps. It lists for $50, but you can find it online for closer to $35.