Can a 2025 Battery Be Used in Place of a 2032 for Car Key?

1 Answers
LaJuniper
07/25/25 11:54am
A 2025 battery cannot be used in place of a 2032 for car keys. The nominal capacity of a 2025 battery ranges from 140 to 170mAh, while that of a 2032 battery ranges from 200 to 230mAh. The thickness of 2025 and 2032 batteries differs, resulting in varying amounts of active material and differing capacities. Car key batteries are primarily used for flashing lights or RF products and come in the form of coin cells, button cells, or watch batteries. The 2025 battery is commonly used in car keys, whereas the 2032 battery is typically found in computer motherboard CMOS batteries, which are used to record system time and maintain clock accuracy.
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