I love my mag 77. So much torque, but it would get a lot less use if i owned a battery powered saw. It's way overkill for most of what i use it for, currently, and is heavy. And takes up a lot of room on the shelf or toolbox.
Was not too impressed with a neigh ors milwaukee 18v 6.25 circ, but no comparison to other battery saw brands.
I learned about the existence of battery brand adapters here on Bitog, after I went with Ridgid 18v.
More recently got makita lawn tools and have ridgid to makita, makita to ridgid, and ridgid to ryobi adapters. The slightly increased resistance with an adapter inline, has not been noticeable.
Ive been using Ridgid batteries in Makita weedwhacker and blower Nd hedgetrimmer, but not the lawnmower, as i only have one adaPter, not 2.
My Makita baTtery to ridgid tool adapter just arrived and the male spade bit was not seated to full depth, cUsing one of thos pesky high rezistance air gaps, but easily remedied.
2 Ridgid 4.0 ah batteries and charger ofen go on sale for well below 100$., and if registered, are replaced without too much hassle.
The adaPters are numerous and range from 16 to 25$.
One cannot charge a ridgid battery in makita charger or vise versa, but there ar no issues using a ridgid battery in Makita tool.
Im thinking a milwaukee polesaw is in my future, using either ridgid or makita 18v batteries with adapter.
Dont think today's tool consumer has to be married to a single battery/tool brand system anymore.