Solar Outdoor Light Setup With Old Car Batteries

hi all

i have setup an solar system with old car batteries to cut down the electricity bill see the video for full setup and overview

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this is cheap but effect solar charge controller for now. i future will change it to a pttm solar charge controller

i got around 10 batteries from the junkyard 6 of them restore to good contion

no power invertors were used as it itself consume some energy. So lights are connected directly to the batteries.

the LED lights are turned on and off via timer. in future in will be changed to an light sensor

this is my home free energy solar setup to power led light around the house.

Total cost of this project 500AED = 130$

Electricity bill saved per month 200AED = 55$