Exact model · directional result · source backed

Battery compatibility checker

Choose exact catalog models. Etrenank checks the relationship in the correct direction and keeps undocumented combinations unknown.

Find compatible products

Start with one battery, tool or charger. Only documented matches in this catalog are shown; missing results do not prove incompatibility.

Choose an exact model

Check two products

Relationship to check

Why exact models matter

Voltage labels alone do not prove fit, electronics support, charging support, or market compatibility. Etrenank never treats an unofficial adapter as a verified relationship.

How to read the result

Compatible
A reviewed manufacturer-supported relationship is recorded.
Warning
The relationship is conditional; read the evidence and limitation.
Incompatible
The selected records conflict on a documented boundary such as market.
Unknown
No manufacturer-confirmed relationship is recorded. Unknown never means compatible.

Need a complete setup?

Use the Builder to reuse products you own and find a feasible catalog configuration.

Open the Builder

Guides

Learn before you choose

Source-backed guides to battery systems, exact model differences, chargers, kit contents, and compatibility boundaries.

View all guides