About our range of replacement car key batteries

Car key batteries typically last for around three to four years. So, if you’re noticing that your key fob seems slow, or won’t work at all, it might be time for a key fob battery replacement. Our range of replacement car key batteries at Halfords covers all of the common car brands you’re likely to find on UK roads, so we’re almost guaranteed to have a battery that’s right for you. If you already know exactly which battery you need, browse our range above.

Energizer coin battery

Energizer coin batteries are a go-to option for car keys. These lithium batteries are long-lasting, so you don’t have to worry about your car key running out of steam anytime soon.

Halfords car key batteries

In addition to replacing your car key battery, you may also be interested in how you can upgrade your car’s security, or replace your car battery . At Halfords, we have everything to keep you on the move safely.

Car key batteries FAQs

How to replace a car key battery?

Replacing a car key battery is usually quick and simple. Most fobs have a small slot where you can gently pry open the casing with a flat tool or coin. Once it’s open, just pop the old battery out and slot the new one in, making sure the positive and negative sides are the right way round. Close it back up and you’re good to go.

What battery for my car key?

It really depends on the make and model of your car. The easiest way to find out is by checking your car manual or looking at the battery already inside your key. If you’re still unsure as to the right car key battery for you, just speak to one of our in-store experts, who will help you find exactly what you need.

How long do car key batteries last?

Most car key batteries last somewhere between two and four years. If you find your remote only works up close or not as reliably as before, it’s probably time for a new one. To avoid getting caught out, it’s worth swapping it early. You can pick up the right battery quickly at Halfords, either online or in-store.

Car Key Batteries