How to rebuild lithium ion batteries and save money
If you have a pile of dead cordless drills or an old laptop sitting in a closet, you might want to learn how to rebuild lithium ion batteries instead of just buying expensive replacements. It's honestly one of the most satisfying DIY projects you can tackle, mainly because the manufacturers charge an absolute fortune for new battery packs when the actual components inside are relatively cheap. Most of the time, the "dead" battery pack isn't even fully dead; it's usually just one or two grumpy cells ruining the party for everyone else. ...