When your Honda key fob runs out of battery, you can take it to a dealership, but it’s pricey. It’s much cheaper and not too difficult to do it yourself.
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For the sake of convenience, the battery in your car’s key fob is designed to last a fairly long time, usually up to around four years. The fob only draws power from the battery when you push the buttons, and even if you drive a lot, you’re probably not mashing your fob buttons at random, so it should be able to get the full extent of its lifespan. That said, that lifespan will run out eventually, leaving you with a nonfunctioning fob that can’t lock or unlock your car doors.
Usually, when this happens, in the fob of a Honda car, for example, you’d take the key to your local Honda maintenance center or dealership to have them fix it for you. This can be a bit of a hassle, though, not to mention a bit pricier than really necessary. It’s possible to replace the battery in your Honda key fob at home for a fraction of the cost – you just need to perform a couple of careful tasks to get the old battery out and the new one in.What you’ll need
The first thing you’ll need to replace a failing or dead battery in a Honda key fob is, of course, a battery. While Honda offers branded ones from its parts centers, a generic 3V button battery will work fine here. You can get a fresh battery on Amazon or at retailers like Walmart for around $10.
Besides the battery, you don’t need special tools to disassemble and reassemble your key fob.
