You can also have your batteries rebuilt. A 36V Hilti NiCad battery rebuild
costs about $108 via the internet, and I found a local Interstate Battery store
that said they would do it for ~$80. An 18 V battery would run half that.
Li-ion batteries are more expensive (if you can even find a rebuil
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 fi
