hakzaw1 Jan 30, 2018 here is that batt health thread...https://laserpointerforums.com/f67/how-healthy-your-batteries-how-measure-internal-resistance-57576-7.html
here is that batt health thread...https://laserpointerforums.com/f67/how-healthy-your-batteries-how-measure-internal-resistance-57576-7.html