[Texascavers] Li- ion cordless drill battery

[Tom Rogers]

Don't dispose of your bad cordless batteries. Take them apart and you can 
harvest 5- 10 18650 batts of which one or two might be shorted out.  I had 
three bad 18 volt batts. Now I have more caving batteries  than I can keep up 
with. Someone with more electrical knowledge might even be able to fix the 
cordless batteries, which was my original intention. Till I discovered that 
they were filled with 18650's. 
Tom