What is the battery model for the Dongfeng Nissan Sylphy remote control?
3 Answers
The battery model for the Dongfeng Nissan Sylphy remote control is a 3V CR2025 button cell. The remote key utilizes the wireless remote control function of the central locking system, allowing you to open and lock the doors from a distance without inserting the key into the lock. The remote key generally consists of the following two parts: 1. Transmitter. Composed of a transmission switch, transmission antenna (keypad), integrated circuit, etc. It contains an identification code storage circuit and an amplitude modulation circuit, with a button-type lithium battery installed on the opposite side of the circuit. The transmission frequency is selected according to the radio standards of the country of use, and the transmission switch sends a signal each time it is pressed. 2. Receiver. After the transmitter sends the identification code using shortwave modulation, it is received by the car's shortwave antenna and processed by the distributor into the shortwave high-frequency amplification processor of the receiver's electronic control unit for demodulation. The demodulated identification code is then compared; if it is the correct code, it is input into the control circuit to activate the actuator.
Last time when I was driving my Nissan Sylphy, the remote control wasn't working. Upon checking, I found the battery model was CR2025, which is a standard coin cell battery and very common. Replacing it yourself is quite simple: there's a thin slit on the back of the key, use a coin or key ring to gently pry open the shell and take out the old battery. Remember not to touch the positive terminal of the new battery directly with your hands to avoid corroding the electrodes; align it correctly with the positive and negative directions, press the shell tightly, and then press the remote button to see if the red light comes on. Generally, the battery can last 1-2 years. If the remote fails earlier than this, it might be because the key is often placed in a high-temperature place or the button is broken. I recommend buying Panasonic CR2025 online, as they offer good value for money, costing only one or two yuan each. It's convenient to keep a few spare ones at home. After replacement, the remote control range will be restored to about ten meters. Remember to test it regularly so it doesn't fail at a critical moment.
I know the battery for the Sylphy remote key is CR2025, and I've replaced it several times myself. That day when the key didn't respond, I followed an online tutorial and used a small screwdriver to pry it open—inside was that small button battery. I removed the old one and installed the newly purchased CR2025, and it worked instantly. The whole process took just five minutes, saving me a trip to the 4S store; buying it online costs just a few bucks. Battery life depends on usage frequency—if you frequently use the remote start, it might run out in just over six months. When replacing the battery, be careful not to force and damage the plastic shell, as it's thin and fragile. Now, I wipe the internal contact points clean with a cloth before installing, making it last longer. After each replacement, I test the buttons to ensure they're responsive and avoid misoperations.
