Worth checking out. ExpertPower 14.4v battery pack. What you need to know: With more power than the original Makita battery, you can rely on this pack to take your Makita tools to the next level ...

The three Makita systems use three different kinds of batteries (40V, 18V, and 12V) that adapt to many tools in each line. Being the brand's biggest, the LXT line likely has every cordless tool ...

For example, if you wanted to connect a Makita battery to a Ryobi tool, you would specifically need a Makita-to-Ryobi adapter, which won't work with any other brand combination.

Power tool battery are also good for durability – they have to survive a building site so are physically rugged, and generally seem to have very solid BMS built in.