160w Solar Panel Charge Rate
Any rating of solar panel can charge the battery the panel only has to be at higher voltage than your battery which can be tricky.
160w solar panel charge rate. With a 160w solar panel with overcast 38 degree days i found it wasnt enough. Battery capacity is measured in amp hours e g. You will also see this expressed as c 10 to c 8 where c the 20 amp hour rating. A 24v panel may give as low as 18 20v depending upon sunlight but you should a voltage regulator in between.
Best 12v battery solar charger. Again assuming a fully depleted battery you would need 20 amps average charging current 100 ah 5 hours. Best 12v battery solar charger panel typically put out about 13 6v to 17 0 volts use to charge 12v battery or to run any 12v devices. Generically speaking maximum charge rate on flooded lead acid fla batteries is 10 to 13 of the c20 amp hour rating.
Secondly a battery can regulate the power going in to the appliance at a constant rate. Renogy 100 watt 12 volt monocrystalline solar panel compact design 42 2 x 19 6 x 1 38 in high efficiency module pv power for battery charging boat caravan rv and any other off grid applications 4 7 out of 5 stars 1 628 103 44 103. Each renogy 160w monocrystalline solar panel is capable of withstanding heavy snow and strong wind loads. For the sake of example if you are getting 5 hours of direct sunlight per day in a sunny state like california you can calculate your solar panel output this way.
So for example a 100 ah rated battery max charge current is 10 to 13 amps. 6 watt solar panel charging a 4 000mah 3 7v battery time 14 8wh 6 watts x 2 4 9 hours. How much energy does a solar panel produce. The energy in watts is equal to the electric charge in amps times the voltage in volts.
Each panel is quality tested to ensure safety and longevity. For fla it is preferred to charge at the higher rates. Thus the output for each solar panel in your array would. Get a usb multimeter from amazon to verify your charge rate.
Now on the voltage of the panel you need a panel capable of up to 14 5 volts to fully charge the battery even when it starts charging at. 5 hours x 290 watts an example wattage of a premium solar panel 1 450 watts hours or roughly 1 5 kilowatt hours kwh. If you are connecting to an off the shelf battery pack there are a number of reasons that the charge rate could be worse. The voltage of the output should be kept constant at 13 5v for a 12 volt battery and 27v for a 24v.
When solar panels are charging a battery it is usually at a varying rate which could harm an appliance if not regulated.