I love all my battery cordless tools, I grew up with corded tools and that was fine at the time
But once i got good modern battery tools I never want to see a plug-in tool again
Going out on the farm with just a cordless grinder and a few cutting disks when you need scrap iron in the junk pile is now a pleasure instead of a pita.
most batteries can be rebuild better than new for less if you have the time
I’ve rebuild so many I’ve lost count, you will need a precision spot welder
You cannot solder the cells without seriously damaging their Usable life
I get my cells fromhttps://www.18650batterystore.com/
Just the other day they shipped me two replacements for 1 cell that got dented by ups to make up for the inconvenience