電池v的意思

"V" in the context of batteries usually stands for "volt", which is a unit of measurement for electrical potential difference or voltage. When you see a battery labeled with a voltage, it typically uses the "V" symbol to denote volts. For example, a common lithium-ion battery for smartphones might have a voltage of 3.7 V, while a larger battery for an electric vehicle might be rated at several hundred volts.