I trust Rusty when it comes to battery knowledge, but I'm in the same boat
@TheDankness, I'd foot the $$ for new batteries as well. Haha, I've already got one eye that doesn't as well as I'd like it to, and I like driving my truck still!
Peese!
The major danger with a cylindrical lithium battery is DEAD SHORTING it for a period of time.
Slicing or peeling a plastic wrapper off the battery is NOT going to short a battery, and unless you use an AXE, you won’t be able to cut through the hard metal of the cylinder.
Now this obviously does not apply to soft Lipo pack batteries, if you drive a nail through one of those, you’ll potentially have a big problem….
Also depending on the internal tolerances of the device that holds the battery, you can sometimes just add a new wrap, over the existing “compromised” wrap. A double wrapped battery, may or may not fit back in the device, as it makes the circumference a tiny bit larger, cost you 99 cents to find out! And they sell clear wraps if you want to still see the original markings on the 1st wrapper. I like white wraps, so I can label them with a marker. P-Touch labels are also thin enough to add.
Some folks can’t afford replacing their perfectly good batteries when a wrap gets cuts (and this happens often), so rewrapping is a smart choice besides the environment issue.