Festool 18V Batteries and Chargers for Cordless Tools

These Festool 18V batteries are the mainstay batteries for almost all cordless Festool tools. (Yes, certain drills use 10V and 15V batteries and the cordless sanders use the Ergo battery). If you have a cordless tool, you will probably want to get to know the 18V batteries better.

Festool's current batteries feature AirStream technology (the AS in the battery's name), which directs cool air through targeted air ducts in the battery so the battery does not overheat. For machines with extremely long-lasting power needs, such as the AGC 18 cordless angle grinder, Festool recommends battery packs of at least 5.0 Ah. The 4.0 Ah batteries are great when the focus is on compact design, as with the CTC Sys dust extractor or when the tool use will not be as demanding between charges. As you can see from the photos, the batteries have somewhat different dimensions.

Festool also offers Energy Sets, which contain 2 18V AirStream batteries (4.0, 5.0 or 8.0 depending upon which model you choose) and a TCL 6 DUO double charger, all packed in a Systainer. These Energy Sets come with the Plus version of larger tools, such as the table saw, Kapex KSC 60 and cordless dust extractors. Plus Sets of cordless track saws, sanders, drills, etc. come with the batteries and a single TCL charger within the same Systainer as the tool.

Festool is constantly innovating in the world of batteries, so we may also have stock that has been discontinued by Festool. Note: 18V chargers will generally be able to charge batteries (other than cordless Ergo sander batteries) from the 10.8 V, 14.4 V and 18 V classes (with the exception of: BP-XS for CXS/TXS 10.8 V).

All batteries and chargers are covered by Festool's 3 year warranty from date of purchase.