What batteries are interchangeable with Ryobi?

The 18-volt batteries for new devices are compatible with old batteries, and new batteries are compatible with old devices. 18-Volt Nickel Cadmium Batteries. Nickel cadmium batteries are the value side of Ryobi’s 18-volt batteries. 18-Volt Compact Lithium Ion Batteries. 18-Volt High Capacity Lithium Ion Battery. Click to see full answer. Considering this, are Ryobi 18 volt batteries interchangeable?Yes, with the exception of Lithium-ion batteries. These batteries will not charge on Ni-cad chargers. As one of the world’s largest and most innovative power tool manufacturers, RYOBI specializes in making pro-featured power tools truly affordable.Also, are Ridgid and Ryobi batteries interchangeable? The batteries are not interchangeable. I own both Ridgid and Ryobi power tools. Ridgid’s battery are flat rectangular while Ryobi’s batteries have a mast in the middle. Also question is, which power tool batteries are interchangeable? The different sizing of the cordless battery slot itself causes each brand to have its own battery pack size even though they tend to have the same voltage. The Porter-Cable and Dewalt for example which both have 20 volts lithium-ion cells are not interchangeable without some modifications.Can Ryobi batteries be left on charger?Give the battery a good solid charge by leaving the battery connected to the charger for another hour couple of hours – but keep a good eye on the battery charger in case it begins to overheat.