Introduction: 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

Step 1: Used 110watts Solar Panel

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Step 2: Pwm Solar Charge Controller 10amps

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

Step 3: Old Restored Car Bateries

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

Step 4: 12 Volt LED Lights

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

Step 5: Timer and the Control Panel

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

Step 6: Money Saved With This Setup

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$

Comments

author
gert3d (author)2016-02-28

with out car batteries -> with old car batteries?

Would it be an idea to switch off the LED lights as soon as the battery voltage drops below a certain level to protect the batteries? The 12 volt LED light tubes use resistors to limit the current. Waste of energy. Use constant current drivers?

author
crxksa (author)gert3d2016-03-10

lol it was old batteries.

yes it am going to add a constant current drivers, but so far all good

author
ForrestW (author)2016-02-27

Likin the music. Tropical House ?

author
simasiku (author)2016-02-26

Great instructable! Assuming it was left constantly on, have you calculated how long the lighting lasts considering the wattage of the fluorescent tubes?