Library › Everyday objects › AAAA battery

Ø8.3 × 42.5 mm, the maximum envelope

Exact dimensions. True size, no printing tolerance added.

STEP STL free, CC BY 4.0 (credit "Xem Studio")

Let your AI pull this. Add https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.

Set it up →

From the full sheet

AAAA battery (LR8D425): every size, notes, mating features and sources. What are the dimensions of an AAAA battery?