This factor was why I decided to use Bosch blue cordless. They haven't changed the battery interface so all the 18v tools are compatible and continue to be. Good to know about Ryobi.
The thing is, when you open up any of these batteries, they all have either standard lithium ion 18650 or 21700 cells and they are all nominally 3.7v/cell. In other words, they are standardised in every way except the interface, which just happens to fit one brand of tool.
I have an old Makita NiMH drill that I've converted to use the Bosch batteries. This 25 year old tool can continue to serve me because there's no such thing as a Bosch electron and that's what's so beautiful about the universal laws of physics.
This factor was why I decided to use Bosch blue cordless. They haven't changed the battery interface so all the 18v tools are compatible and continue to be. Good to know about Ryobi.
The thing is, when you open up any of these batteries, they all have either standard lithium ion 18650 or 21700 cells and they are all nominally 3.7v/cell. In other words, they are standardised in every way except the interface, which just happens to fit one brand of tool.
I have an old Makita NiMH drill that I've converted to use the Bosch batteries. This 25 year old tool can continue to serve me because there's no such thing as a Bosch electron and that's what's so beautiful about the universal laws of physics.