The biggest challenge for large cordless tools now is runtime, due to the high energy consumption of newer models. Milwaukee could create a 20 Ah M18 battery, adding 5 more cells and using 5ah 21700 cells. It would be smaller than the new DeWalt 15ah. To be clear, this is a new battery system that is independent of the M12 and M18 lines.
The M12 line has traditionally been used as an ergonomic means to replace hand tools, and the M18 range has gone further with the power it has been able to produce with just 18 volts, including table saws, chain saws and a Super Sawzall. I mean that no one has grown their mobile storage system as quickly or with as much variety of equipment as Milwaukee with their Packout system, and now their new Shop Vac and support team are one of the best choices in the tool industry right now. Homeowners, like me, buy tools like Milwaukee because I think they're fully vetted by professionals. So Milwaukee has been discreet about the mower's X2 system and I forget about the other tool and I can see why.
As a 2-piece package, this Milwaukee M18 battery weighs more than its 1.5 Ah counterpart and works better with heavier tools, such as cordless circular saws, Sawzall and rotary hammers, although larger batteries offer much better operating time. If Milwaukee can make a tool with a five-year warranty that works in a professional environment, then it should last almost forever for me at home. By saying that the 12 amphr and 9 amphr batteries in the Milwaukee range are too big and heavy and, in reality, are only good in stationary tools with high power demands, such as a fall saw. Obviously, Milwaukee doesn't lack 2.5 Ah 18650, since they include the XC5.0 with basically all the tools that come in a kit.
If your crew uses several Milwaukee cordless tools on site, this is the charger that keeps them all running around the clock. I bought Milwaukee tools that don't work from Garage Sales and shipped them (with free shipping) and received a repair within 10 days. They work on any Milwaukee M18 or M18 Fuel tool, but tools with the new electronics get a power increase of up to 50%. For a long time, it seemed like Milwaukee touted that they didn't need to adopt something like Flexvolt because their superior battery technology allowed them to create equally powerful tools without compromising compatibility.