Honda Key Fob Remote Batteries & How to Replace Them

One of the largest car makers in the world, Honda has made replacing their key fob batteries easy. Most fobs and keys use the same common battery type. Click your vehicle model below to find videos and tutorials on how to change the battery in your Honda key fob remote. You can also look at your fob and match it to the picture on this page to find the correct battery.

Vehicles

Honda Key Fobs

The Honda line of key fobs. Honda has had just 6 major key fobs over the years. They have two integrated smart keys where the physical key and the fob are one and the same. Then they have 4 smart key fobs that with various buttons allow you to lock/unlock and/or start the car, open the trunk, etc.

1. The Integrated Physical Key with Rectangle Smart Key Buttons

Honda integrated smart key with rectangle buttons. Used in mid 2010's Honda Accord Sedans & other Honda Models.
Honda integrated smart key with rectangle buttons. Used in mid 2010’s Honda Accord Sedans & other Honda models. This is the newer of the two Honda smart keys.

2. The Integrated Physical Key with Rounded Smart Key Buttons

Smart physical key with rounded key buttons. This is the older of the two physical smart keys used by Honda.
This is the battery for the integrated physical key with rounded smat key button Honda key fob:
AmazonBasics CR1616 Lithium Coin Cell Battery - 2-Pack
  • 2-Pack of CR1616 lithium coin cell batteries for small electronic devices
  • Powers devices such as watches, calculators, sporting goods, games, medical devices, and more
  • Long-lasting, reliable battery life; performs in extreme temperatures

3. Smart Fob Key with Rounded Case and Rounded buttons

Smart fob with rounded buttons.

4. Smart Fob Rounded on Both Sides of Key

The oldest Honda smart key fob.
The oldest Honda smart key fob. Fully rounded rob on top and bottom.
This is the battery you need to change for the above rounded on both sides of the key fob:
Energizer CR2025 Battery, 3V Lithium Coin Cell 2025 Batteries (2 Battery Count) - Packaging May Vary
  • Energizer 2025 Lithium Coin Battery
  • Delivers long-lasting, dependable performance in specialty devices like heart rate monitors, remotes, keyless entry systems, glucose monitors, toys, and games
  • Holds power for up to 10 years in storage, ensuring you have Lithium Coin Batteries ready when you need them

5. Rectangular Button Smart Key Fob – Newest Honda Smart Key

Newest Honda Smart Key Fob
Newest Honda Smart Key Fob.
This is the battery you need to change for the above Honda Smart key:


AmazonBasics CR2032 3 Volt Lithium Coin Cell Battery - 4-Pack
  • 4-pack of lithium coin cell batteries; CR2032 cell size
  • 8-year leak-free shelf life, ideal for watches, calculators, key fobs, Apple TV remotes, and other small electronics
  • Replacement for BR2032, DL2032, and ECR2032