How to Replace the Battery of a Haima Car Key?
3 Answers
Haima car key battery replacement method is: 1. Pop out the key from the key shell; 2. Use a screwdriver to pry open the outer shell of the car key, prying along the shell clips; 3. After opening it by hand, you can see the battery, then remove the battery; 4. Prepare a new battery of the same model and replace it; 5. Cover the car key shell back as it was, completing the battery replacement. Taking the Haima S5 as an example, it is a compact SUV under Haima Motors, with a MacPherson independent front suspension and a multi-link independent rear suspension. In terms of body dimensions, the car has a length, width, and height of 4418mm, 1823mm, and 1630mm respectively, with a wheelbase of 2630mm.
As a Haima car owner, changing the key battery yourself is quite simple. You just need a small screwdriver and a new button battery. First, locate the gap or small screw on the back cover of the key. Usually, you can gently pry it open with a flat-head screwdriver or a coin—don’t use too much force to avoid scratching it. After opening the shell, you’ll see the battery slot. Note the old battery model, such as CR2025 or CR2032, which costs about 5-6 yuan each at the supermarket. Carefully remove the old battery without touching the terminals, then insert the new battery according to the positive and negative markings, pressing it firmly to ensure good contact. Before reassembling the back cover, test the unlock function by pressing a few times to confirm the light or response is normal. If there’s no response, check the battery orientation or clean any dirt in the slot with a cloth. The whole process takes just 3-5 minutes, saving you money and hassle.
I've replaced the battery in my Haima car key multiple times, and my advice is to ensure a quiet environment to avoid distractions before starting. First, power off and remove any items from the key, and avoid operating in dusty areas. Locate the seam of the back cover and gently pry it open with a thin tool like a nail file or card to prevent cracking. Once opened, you'll see the small battery held in place—tap it out gently without using metal tweezers to avoid damage. Most replacement batteries are CR2025 models; buy high-quality ones from Taobao or convenience stores to prevent voltage instability. When inserting the new battery, align the positive and negative sides and press it in. When reassembling the cover, listen for a click to confirm it's properly seated, then test the remote functions for responsiveness. I recommend taking photos of each step beforehand for reference. These simple steps are easy for anyone to learn, and replacing the battery early when it weakens ensures safety.
