Product Description：The main function of this product is to charge the 18V battery of car,moto and motorboat or most of the 12V lead-acid and lithium batteries.The trickle charging will be helpful for extending the battery life though its current is small.The charging method is not only energy saving,maintain battery life,but also can meet the needs of some small capacity car audios,which it's very suitable for outdoor work,travel or camping. About ETFE Solar Panel: ETFE solar panels have strong oxidation resistance and the longest service life. When people do this, the price is relatively expensive. If you want to put solar panels on the seaside or some places with heavy salt fog,we suggest you choose ETFE monocrystalline solar panels. Specifications： Product size: 1180*540*3.3mm Power: 300W Working voltage: 18.1V±0.3V Working voltage: 16.1A±0.5A Temperature coefficient Voltage: (0.065±0.015)%/℃ Temperature coefficient current: -(160±10)mA/℃ Temperature coefficient power: -(0.5±0.05)%/℃ System voltage: 1000V Operating environment temperature: -40°C-+85°C (-40°F to 185°F) Wind resistance: 50psf (2400 pascals) Snow resistance: 113psf (5400 pascals) Hail impact: 25mm (1 inch) at 23 m/s (52mph) Warm Tips：1.Please make sure the positive and negative terminals of this product areconnected with the charged product's positive and negative terminals before usage.2.Please do not try to modify the PCB circuit unless you are a professionaltechnician.And we are not responsible for such a result.3.The best working time: 9:00-17:00 (mainly for sunlight weather).which is intended to extend the battery life and emergency charge usage.Pleasechoose other higher current products if you want a faster charging speed. Packing list：1*300W Solar Panel1*Controller（10-30A）We will give you the corresponding controller according to the total wattage of the solar panel you purchased. Regarding the delivery of the controller:1. We will give a free controller when purchasing solar panels. 2. The solar panel and the controller are shipped together, which will increase our logistics cost. Therefore, the gift controller and solar panel are shipped separately. The controller will be shipped with different logistics, generally within 1-5 days after receiving the solar panel, the controller will be received.3. If you have not received the controller, please contact us.
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