Match the platform, not just the voltage.

Write down the platform name printed on your existing battery and charger: M12, M18, 20V MAX, 18V LXT or 18V ONE+. Then check the tool manufacturer’s supported battery list. Makita’s XPH14 documentation specifies LXT packs with the Star symbol; the DCB205 is identified for DEWALT 20V MAX tools and chargers.

DEWALT explains that 20V MAX is maximum initial voltage and the nominal voltage is 18V. That naming difference does not make another brand’s 18V battery interchangeable. Tool Drip groups products by the documented platform and does not treat matching voltage or an aftermarket adapter as proof of support.

A brand can also have multiple battery families. Milwaukee’s 3453-20 is an M12 tool, while the 2953-20 is M18. Buying one because you own the other leaves a battery decision unresolved. Some chargers support more than one family; check the specific charger label and manual instead of assuming that a shared logo establishes support.

Before adding a second platform, identify what it solves: access, a missing tool type or a package you can justify on its own. Count the extra batteries, charger and storage space in your decision. The platform filter is a way to narrow this catalog, not a guarantee that every pack revision supports every historical tool. Keep the exact tool and battery model numbers together when checking manufacturer guidance.