Tecmate Optimate Solar Duo 20W Travel Kit, Tm522-D2Tk, 6-Step 12V / 12.8V 1.6A Weatherproof Solar Battery Saving Charger & Maintainer

Ideal For A Stored Car, Truck, Boat, Utv, Or Rv (Starter Battery). | Includes A 20W Panel With Removable Suction Mounts, Duo Charge Controller, 2 X Battery Connection Cables Plus A Obdii Port Adapter & A Nylon Storage Bag. | Connect To The Battery Directly, Or Connect To The Obdii Port In Your Car, Truck, Or Rv (Below The Steering Wheel). | Duo Charge Controller – Works With 12V Lead-Acid & 12.8V Lithium (Lfp / Lifepo4) Batteries. | Fully Automatic – The Duo Controller Accurately Charges & Maintains The Battery By Day And Monitors It At Night.