How to replace the battery in a Haval F7 car key?
3 Answers
Push the release button and remove the mechanical key. Gently pry open the back cover of the key with a flat-head screwdriver and remove it. Take out the old battery and insert the new battery into the slot. When installing the battery, ensure the positive side faces downward. Reattach the key back cover. After installation, check if all buttons on the key function properly. Store the battery out of reach of children. If accidentally swallowed by a child, it may cause choking or death. Dispose of used batteries according to local regulations.
Replacing the battery for a Haval F7 key sounds troublesome but is actually quite simple. Having driven this car for several years, I've changed the battery a few times myself. You'll need a new CR2032 battery, which is commonly available in supermarkets or online—opt for durable brands like Duracell. Then, prepare a small flathead screwdriver or a dedicated plastic pry tool. First, remove the mechanical backup key part from the back of the key fob. Next, gently pry open the key casing along the seam—avoid using excessive force to prevent scratching the plastic. Once opened, you'll see the round battery; remove it and note the positive (+) marking. Align the new battery correctly and ensure the contacts are firmly in place. Close the casing until you hear a click, indicating it's locked. I usually test the remote range afterward to see if it improves—slow response when pressing the buttons is a sign it's time for a replacement. The battery typically lasts one to two years, so I check it during annual car maintenance to avoid awkward situations like remote failure in parking lots, forcing me to use the mechanical key and insert it into the ignition slot as a temporary fix. Keeping the key clean and free from water or grease helps prolong its lifespan—practical advice indeed.
The first time I changed the battery for my Haval F7 key, I was a bit clumsy but it went smoothly later. You'll need a new CR2032 battery, which is available at most supermarkets and isn't expensive. A small screwdriver will do as the tool. Remove the part with the mechanical key, then gently pry open the shell from the edge of the key—be careful not to crack the plastic. Inside, the battery is round; remember the positive side when taking it out, usually marked with a plus sign. Don't mix up the orientation when putting in the new battery, or all your effort will be wasted. After reassembling the shell, test the unlock button to see if it responds smoothly again. I recommend watching an online tutorial or practicing on an old object before starting, to avoid mistakes like mine—I pried too hastily at first and nearly damaged a corner. The battery lasts about two years; don't wait until it's completely dead to act, or the remote will fail, forcing you to use the mechanical key to open the door and then start the car by pressing the ignition button inside as an emergency measure. Doing it yourself saves time and money compared to going to a repair shop.
