such as drills and handheld power saws, while the larger, more energy-hungry tools operate on Ryobi's 40V batteries. There are, however, two different types of 40V batteries: the regular 40V and ...

So, if you buy a 40V HP device, only 40V batteries will work. Interestingly enough, it seems that many Ryobi One+ chargers can actually be used to charge batteries from either lineup. So ...