How to Replace the Key Battery for CS75?
2 Answers
There are 3 steps to replace the CS75 remote key battery: 1. Use a small flat-head screwdriver or plastic pry tool to gently pry open the remote shell. Be careful not to damage the internal circuits during the process, especially in winter when static electricity should be discharged by touching metal beforehand. 2. For detachable mechanical keys, remove the mechanical key first. You can use the mechanical key to pry along the gap, and the entire cover can be opened once the gap is pried apart. 3. After opening the remote key cover, you will see the battery, which is a CR2032 model. Simply remove and replace it. When installing, pay attention to the positive and negative polarity. After installing the battery, close the key cover and test the function by pressing the buttons.
Changing the battery for a CS75 key is something I'm very familiar with—it only takes about three to five minutes to do it yourself. First, prepare a CR2032 coin cell battery, which can be bought for just a few bucks at the supermarket. Use a coin or a small screwdriver to pry open the seam on the back of the key, being careful not to crack the plastic shell. Once opened, the old battery will be exposed—pay attention to the polarity (the silver side is the negative terminal and should face downward). Insert the new battery into the slot, aligning it correctly, and press it in until you hear a click, indicating it's secured. When closing the back cover, make sure the edges are aligned and press gently. Finally, test the response by pressing the unlock button a few times. If you notice the remote range shortening or the indicator light dimming, it's a sign that the battery needs replacing. I make it a habit to check the battery once a year to avoid sudden power loss. Before starting, it's best to place the car key on a soft cloth to prevent small parts from bouncing away and getting lost.