This Test Mainly Rules out your alternator and test its strength. For a Battery you will need a batter load tester. here’s the video    • How To Check A Ca…   You can purchase a multimeter here https://amzn.to/3HoIWxk How to check battery voltage, alternator voltage, and load test voltage with a multimeter THANKS FOR WATCHING 🙂 Please comment below This video is for information purposes only. If you perform these tasks, HandyManProblemFixer assumes no responsibility in your project. I have to post this Disclaimer to protect my self in the Sue happy Society we live in today. WWW.HANDYMANPF.COM Please Help support this channel VIA PayPal So I can continue to improve and make quality videos and make product reviews to help save you or someone else time and money. https://goo.gl/KUwgNi Handyman Problem Fixer @handymanproblemfixer #handymanproblemfixer #handyman @handyman