DIY 12V Battery Charger Using Solar Input on a DC-DC Charger: Step-by-Step Guide

In this video, I'll show you how to build a 12V battery charger using the solar input on a DC-DC charger. We will be using an old laptop charger to create a trickle charger for your 12v system using the solar input on your dc-dc charger.

[@fftcdragonboy7999]

omg finny I found a dc to dc in the bin working and I tryed to fine if u can do this but failed so sat in my 4wd draw and just found your video and now I finny got use for it thanks so much ❤

[@luisgarage8773]

@@fftcdragonboy7999 glad i could help

[@fftcdragonboy7999]

​@luisgarage8773 so use thay low amp charger dose the dc to dc charger boost up to 40ah if your dc to dc is that

[@luisgarage8773]

@@fftcdragonboy7999 yeh the laptop charger acts like a solar panel and feeds it with 19v, the dcdc charger will then regulate it to the correct amp and voltage to charge the battery

[@fftcdragonboy7999]

@@luisgarage8773 awesome thanks