This video shows how well 20 year old batteries which were abused early in their life cycle, and then allowed to sit dormant for a decade, roughly, hold a charge after roughly 3.5 years. I measure open-circuit voltage and load test them.
Appreciate the update. I got into batteries almost 5 years ago when I bought my first Modlite and read all the info on their website. Discovered your channel shortly after that. At this point I feel like your batteries and I are growing old together hahaha
Time since last charge is 2 years, 7 months from June '21, to now. Not that 10 months is a big deal in the grand scheme of your demonstration, but I wanted to note it, regardless. After seeing your video about charging these, I broke open an old Milwaukee 5.0 amp hour battery, that wouldn't last long in the setting I use them in, and charged them up and they've been sitting a year. I wanted to test those and see if they'd still be good candidates for backup batteries for lights, etc. Edit: Your test and conclusion proves, I should have no issues. Thanks for testing and sharing your experiences. Take care.
@@UnobtaniumsQuickReviews I am as well. 20, or more years is a long time, even if they weren't abused. My Milwaukee batteries are 11 years old and when you mentioned how much abuse your laptop batteries have taken, I had to try mine. I would run my tools so hard, they shut down (thermal protection), but they still get pretty dang hot. They were run hard for 5 years, and then sat for 5 years with barely any charge, before I pulled them apart. After charging, they all measured 4.15V-4.17V. We'll see what mine measure in another year or so. It's nice that there's a lot of battery cross compatibility, between electronics.
