Calculate Solar Panel Battery Charging Time

I ll be powering music amplifiers and laptop with a total draw of about 8 amps ac using a 1500w inverter connected to a 12v battery.

Calculate solar panel battery charging time.

The power generation rating of a solar panel is also given in watts. 3 84 kw gridtied battery backup solar system with outback power center and 12x heliene 320 panels wss outback grid tie w battery backup system for 12 heliene 60 cell modules 17 142 92. Hello swagatam i m trying to figure out roughly what i ll need in battery size and solar panel size. I ll need a minimum of 5 hours run time with the solar panels charging the battery as i go.

Get a usb multimeter from amazon to verify your charge rate if you are connecting to an off the shelf battery pack there are a number of reasons that the charge rate could be worse. In theory to calculate the energy it can supply to the battery you multiply watts of the solar panel by the hours exposed to sunshine. The final part to sizing your solar system is the solar panels. Batterystuff tech i would suggest running your numbers into the calculator.

6 watt solar panel charging a 4 000mah 3 7v battery time 14 8wh 6 watts x 2 4 9 hours tip. At a bare minimum most customers will have have a solar panel that can output two day of power in a single day and they will often select a battery that can withstand two days without solar and still not. Unfortunately we don t design systems for our customers but we do offer you the tools to design your own system. The additional 10 is to make sure that the battery is fully charged.

Then take the battery capacity which measured in ah and divide it by the amp rating the result from prior computation of the solar panel and then adding 10 of the charging time to it. And if you want to continue with your existing inverter then you can buy smarten 24v 50amp. Calculate fast easy the solar battery bank capacity and the number of batteries in series or parallel free pwm charge controller calculator solar panel output calculator estimate the real energy you can get from your solar panels.