How to Replace the Key Battery of BAIC EU5?

[McLaila]

Disassembly tools only require pliers and a screwdriver, and the specifications of the new battery must comply with the vehicle model specifications. Because the negative terminal of the battery is connected to the vehicle body, if the positive terminal is removed first, contact between metal tools and the body can easily cause a short circuit. Remove the battery clamping bracket bolts, then remove the bracket and the battery. When removing the battery, the tilt angle should not exceed 40 degrees to prevent electrolyte leakage from some dry-charged batteries. Wear gloves to prevent electrolyte from splashing onto your body.

[LeMaverick]

Replacing the battery for the BAIC EU5 key is actually quite simple and can be done in just a few minutes. First, prepare a CR2032 button cell battery, which can be purchased at hardware stores or supermarkets. There's a small groove on the side of the key—use a coin or your fingernail to gently pry open the casing along the seam, being careful not to use too much force. Once opened, you'll see the old battery slot; gently lift it out with a toothpick, and it will pop right out. When inserting the new battery, make sure to align the positive and negative sides correctly—usually, the marked side faces upward. Finally, align the key casing and press it back together until you hear a click, indicating the latch is secured. Keep a spare battery in the car's glove compartment, and the dashboard will alert you when the battery is running low.

[Lucian]

Last week I just replaced the key battery for my EU5, and the steps were actually super easy. The key has a two-part structure that can be opened from the seam in the middle. Just use a plastic pry tool or an old bank card, twist it, and it pops open—no scratches from metal keys. The battery inside is very obvious, just a common button cell model. When replacing, wear cotton gloves to avoid leaving fingerprints on the circuit board. After installing the new battery, remember to press the key buttons a few times to test it. After installation, I even ran to the car to test the remote window control function. Here’s a tip: There’s a waterproof rubber ring in the battery compartment, so be careful not to lose it during disassembly or reassembly.

[LaAlessandra]

Changing the battery for the EU5 smart key is a three-step process: First, locate the small latch on the back of the key and push it open with your thumbnail; then gently hold the upper part and lift the cover off with care; finally, remove the old battery and replace it directly. Remember to use the correct battery model CR2032—available at convenience stores for around five yuan. When reassembling, snap the bottom part first before pressing the top. The entire process requires no tools and takes just a minute. Replace the battery annually to avoid sudden power loss. Battery replacement is recommended once a year to prevent unexpected power failure.