As we all know, batteries naturally drain power and if allowed to go flat, may never regain their full power. This product is a solar powered battery maintainer and charger for 12V batteries and helps manage battery drain in all season. The solar charger converts light energy from the sun into 12 volt DC electricity which is then transported to the rechargeable batteries through lead wire and connector of choice. It can be used for cars, 4WD’s, trucks, motorcycle, marine, boats, farm equipment or any application where a 12v battery is used. The high efficient solar panel allows to absorb a wider spectrum of the sun light, as long as there is sufficient sunlight available, the charger will generate an electrical current to trickle charge battery. The charger will not damage or over charge your battery, similarly, a blocking reverse diode ensures the charger can’t drain your battery. Please note the charger is designed to top-up battery charger as a result of natural drainage instead of continuous and quick charging . Plug & Play The one way SAE plug allows to easily install, really plug and play Temperature, Sunlight, Atmosphere are the main factors affect the performance of solar panel All solar panels are tested under international stander test condition(STC): 25℃, 1000W/㎡, AM1.5 No shadow on solar panel Renewable Battery Charger & Maintainer Solar Charge Anywhere Batteries naturally drain power and go flat, may never regain full power, the solar charger generates electrical current to trickle keep battery topped off as long as there is sunlight available. Works with solar power, keep your battery topped off in all season. High effecient crystalline solar panel, works better in sunlight. Built-in diodbe to prevent reverse charging, no drain of your battery. Universal golden finger connect, quick and easy to connect and disconnect,plug and play Upgraded abs frame, stronger and more durable, built for years. Covered with tempered solar glasses, high light transmittane,stand high loads. Low maintenace, portable and light weight. 4 suction cups for easy mounting; 2 interchangable clamps and cigarette cables for more applications. 6W Solar Battery Charger 5W Solar Battery Charger PRO 10W Solar Battery Charger PRO 12W Solar Battery Charger PRO 18W Solar Battery Charger PRO 20W Solar Battery Charger PRO Add to Cart Buying Options Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.2 out of 5 stars 1,526 4.2 out of 5 stars 111 4.5 out of 5 stars 2,118 4.5 out of 5 stars 2,118 4.5 out of 5 stars 1,307 4.5 out of 5 stars 1,307 Price $39.95$39.95 — no data $55.99$55.99 $59.95$59.95 $79.95$79.95 $85.95$85.95 Rated Power 6W 5W 10W 12W 18W 20W Output of Voltage 12 Volt 12 Volt 12 Volt 12 Volt 12 Volt 12 Volt Solar Cell Type Polycrystalline Amorphous Polycrystalline Monocrystalline Polycrystalline Monocrystalline Waterproof Grade IP 65 IP 65 IP 65 IP 65 IP 65 IP 65 MPPPT Charge Controller no data ✓ ✓ ✓ ✓ ✓ Improved Charging Algorithm no data ✓ ✓ ✓ ✓ ✓ Multiple Protections ✓ ✓ ✓ ✓ ✓ ✓ Battery Type Sealed lead-acid, Flooded, Gel, AGM, SLA, Lifepo4 and and Maintenance-free Sealed lead-acid, Flooded, Gel, AGM, SLA, Lifepo4 and and Maintenance-free Sealed lead-acid, Flooded, Gel, AGM, SLA, Lifepo4 and and Maintenance-free Sealed lead-acid, Flooded, Gel, AGM, SLA, Lifepo4 and and Maintenance-free Sealed lead-acid, Flooded, Gel, AGM, SLA, Lifepo4 and and Maintenance-free Sealed lead-acid, Flooded, Gel, AGM, SLA, Lifepo4 and and Maintenance-free Cable Length 2.4M/7.8FT 3M/9.8FT 3M/9.8FT 3M/9.8FT 3M/9.8FT 3M/9.8FT Dimension 14.8"D x 6.3"W x 0.5"H 16.5"D x 9.4"W x 0.6"H 16.5"D x 9.4"W x 0.6"H 16.5"D x 9.4"W x 0.6"H 20.15"D x 13.78"W x 0.7"H 20.15"D x 13.78"W x 0.7"H