Not just a booster but a reducer as well giving full charge control regardless of alternator voltage

Hubbell Marine Wiring Devices

Watertight plug has gasketed locking ring to make plug/receptacle interface watartight

One power meter showing % of charger capacity being used as well as power capacity remaining

Rule - 2- and 3-Way Panel Bilge Pump Switches, Part No. 41 - Volt 12 - Amps 20 Forespar Not just a booster but41 & 42 Deluxe Switches control any pump equipped with automatic switch. Three positions: AUTOMATIC, OFF or MANUAL. Has spring return "Off" from manual position you can't leave it on by mistake. Attractive stainless steel panel with red indicator light and pre wired fuse. 43 & 44 are the same as 41 & 42 but have a black plastic panel and an internally lighted rocker switch. 45 Standard Switch is similar to the Deluxe Panel Switch, but without