The SE-500 Sunsei solar 7.5-Watt 120-Volt charger is a solar panel designed to provide reliable, renewable energy as an alternative to noisy and expensive diesel, propane and gas generators. This solar panel is ideal for medium-sized boats, RVs, trucks and tractors and can also be used to charge portable electronics, deer feeders, gate openers and fence charges. It is engineered to maintain a 12-Volt deep-cycle battery, it will keep a battery topped off when not in use. The weatherproof solar charger provides immediate trickle-charge when exposed to daylight, even on cloudy days. Its "Plug-n-Play" features allows connection of multiple panels in seconds without tools or rewiring; it also features a touch-action indicator to show when the panel is charging. The panel comes with 1 -cigarette lighter adapter, 1-female cigarette lighter adapter, 1-battery clamp connector, 1-terminal ring connector, 1-extension cable (10-Feet), 1-panel-to-panel jumper cable, 4-mounting screws. It is 14.8-Inch by 14.2-Inch by 1-Inch in size and weighs 3.3-Pounds. It is covered by a 10-year warranty

The Sunsei Solar Charger 500 is a perfect match for medium-sized boats, RVs, trucks and tractors. Protects against natural battery discharge and electronic drain so no more worries about empty batteries. Perfect for charging portable electronics like laptops and cell phones, not to mention gate openers, fence chargers, and much more. The weatherproof Solar Charger 500 provides immediate trickle-charge when exposed to daylight. It works equally well in cloud or shine, outside or behind a window. Comes with a push-button, touch-action indicator that lets you know your panel is charging.

The Sunsei solar grip provides a flexible mounting option for the Sunsei SE400 solar panel or the Coleman CL300 panel. It conveniently provides both pole and deck mounting grips to avoid drilling into the roof of your vehicle or boat or into your deck or fence. The SolarGrip rotates 360 degrees to maximize your panel's output by positioning your panel right at the sun. Use this grip with boats, RVs, farm machinery, electric fences, and more -- it will mount just about anywhere. The box includes a 7/8-inch pole/rail mount, 1 deck clamp, 1 solar panel mounting assembly, and 1 multi-angle positioning arm. It is covered by a 2-year warranty.

Do I need a charge controller with the Sunsei SE-500 Solar Battery Charger?

Generally, a charge controller is not required for the SolarCharger Sunsei SE-500 because it is not powerful enough to overcharge your battery. However, a charge controller may be required for lower capacity batteries. In general a battery with 150 AHr capacity cannot be overcharged with the Sunsei SE-500. Connecting multiple Sunsei SE-500 panel together may require a charge controller.

Can the Sunsei 500 Solar Battery Charger drain my battery at night?

No. All Sunsei solar panels in the SE-150, SE-500 and SE-1500 range are equipped with a built-in diode, which prevents any reverse current.

Do I have to disconnect the panels from the battery when I drive or while I am recharging my battery with my generator?

No, Sunsei solar panels are designed to be connected to the battery permanently. There is no need to disconnect them when charging the batteries by other means such as AC chargers or your vehicle's generator or alternator.

Can I mount the Sunsei SE-500 Solar Battery Charger directly to a surface or do I need to use some sort of bracket?

Sunsei solar panels can be installed directly to a flat surface, using the screws provided. Note: The Sunsei SE-500 Solar Battery Charger is compatible with the Sunsei SolarGrip. It provides alternative mounting options (no need to drill your deck or roof) and rotates 360-degrees for double the solar power.

Can the Sunsei 500 Solar Battery Charger be left outdoors without protective covering?

Yes, the SolarCharger SE-500 has been weather protected and can be mounted outdoors. It is completely weatherproofed, and can withstand 1/2 inch hailstones, up to 180-degreesF heat, and operate under 3 inches of snow (on sunny days).

How long will it take for the Sunsei 500 Solar Battery Charger to charge a dead battery?

The SolarCharger SE-500 is designed to trickle charge batteries. It compensates for natural voltage losses and key-off small instrumentation drain by replenishing your battery. Fully charging a dead battery will require multiple days of full sunlight.

What types of batteries can I charge?

You can trickle charge all types of 12V batteries with the Sunsei 500 Solar Battery Charger, including lead-acid automotive batteries, deep cycle (traction type) batteries, gel-cell batteries and heavy-duty (stationary type) batteries.