The battery type is CR2032 3-volt lithium coin cell for most Honda CR-V key fobs.
In practice, Honda generally relies on CR2032 for current fobs, but some older designs or regional variants can use CR2025 or other coin-cell sizes. To confirm, check the battery inside the fob or consult the owner's manual or a dealer.
Common battery types found in Honda CR‑V key fobs
Here are the coin-cell types you are most likely to encounter across CR‑V generations. Use this as a quick guide to identify which battery to purchase.
- CR2032 — the standard 3V coin cell used in the vast majority of modern CR‑V key fobs.
- CR2025 — a slightly thinner 3V coin cell that appears in some older or regional fobs.
- CR1632 — rare in Honda key fobs, but may appear in a very small number of early or non‑U.S. market units.
When in doubt, rely on the battery size stamped on the old cell or verify with the owner’s manual to avoid using an incorrect type.
How to replace the CR-V key fob battery
Replacing the battery is usually straightforward. Follow these steps to perform the replacement safely and effectively.
- Open the fob: look for a seam along the edge and gently pry apart the two halves with a small flat-head screwdriver or a coin, taking care not to damage the casing or circuitry.
- Remove the old battery: note which side is facing up (positive side is typically visible) and lift the cell out carefully.
- Insert the new battery: place the correct size (most often CR2032) with the correct orientation, usually positive side facing up.
- Reassemble and test: snap the fob halves back together firmly and press a button to confirm the LED or door lock responds from a short distance.
Dispose of the old battery properly in accordance with local recycling regulations, and handle the fob gently to avoid damaging the internal electronics.
Summary
For most Honda CR-V key fobs, the recommended replacement battery is a CR2032 3V lithium coin cell. Some older or regional models may use CR2025, so always verify by inspecting the battery itself or consulting the owner's manual. When replacing, follow careful steps to open the fob, swap in the correct cell, reassemble, and test the function. If you’re unsure, a dealership or locksmith can replace the battery without risk to the fob’s electronics.