Multi-Use: Charge, maintain, and desulfate any 12V lead-acid batteries (VRLA, AGM, gel, and flooded cell) on outdoor vehicles and equipment, without danger of overcharging or overheating. Ideal for charging three-to-four batteries connected in parallel. Provides a full 12 watts of power, to ensure your batteries remain in peak condition.
Durable and Powerful Performance: Virtually indestructible, this charger and maintainer features a solid LED indicator that shines steadily in full sunlight and fades in partial sunlight. Reverse polarity protection. Patented Pulse Technology extends battery life up to three times. The SP-12 solar panel (12.41"L x 9.85"W x 0.2"H) comes with a 3' box-to-lug wire and 17' box-to-panel wire. The SP-12 is a higher-watt version of the SP-10 Solar Charger, 10W. SP12
 
PRODUCT DETAILS
Keeps 3-4 batteries connected in parallel in peak condition
Maintains batteries at full state of charge
Dramatically reduces jumpstarts
30% smaller footprint than typical panels 
Commercial grade solar panel is virtually indestructible
Patented Pulse Technology extends battery life up to 3X
Supports sustainability programs
Reverse polarity protected
Ten-Year Limited Warranty