Here are some photos of a DIY 720-watt hour solar power system. This provides LED lighting, charges phones, e-bike batteries, drills, runs power tools, and boils a small travel kettle.
The system shown here uses 3 x 75 Ah Lead Acid batteries giving a capacity to store a total of 1350 Watt Hours of energy. If used in an off-grid dwelling, it could power LED lights, run a TV & internet router, and charge phones and laptops. There are 2 panels totaling 150 Watts that are used for charging these batteries.
The image below shows the system wiring with labels. Small loads refer to LED lighting and other devices drawing a maximum of 100 Watts (less than 10 Amps).
This image here shows the batteries wired in parallel. Note that each battery is fused at 20 Amps, giving a total system current of 60 Amps.
Ideally one would use similar power solar panels in parallel to provide more power. In this instance, we have used a 100-watt and 50-watt panel as we already had them.
Here are the 2 panels (one 100 watts and the other 50 watts) on the roof of the shed.
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