What is the terminal voltage of the battery? The international system of units (SI) of voltage is volts (V), and commonly used units are millivolts (mV), V, kV, etc.

What is the ampere-hour capacity of the battery or how much energy can you store? Ampere is the basic unit of current in the international system of units. The signature A is to commemorate the French physicist A Ampere, who put forward the famous Ampere's Law in 1820.

How far an electric car runs mainly depends on the battery capacity. The bigger the capacity, the farther they run. Of course, the capacity is equal. High voltage runs far in series because of the number of batteries (which should match the voltage of the car).

Extended data:

Precautions:

First, the correct use of the charger

1. Confirm whether the AC power supply is consistent with the input voltage of the charger.

2. Judge whether the output voltage of the charger is consistent with the rated voltage of the battery.

3. First insert the charger into the battery box, and then insert the AC power supply.

4. Chargers used indoors should be moisture-proof and shockproof. Please do not cover it when charging, and put it in a ventilated and heat-dissipating place.

Second, the battery can't be charged at any time.

1. Lead-acid battery is not a lithium battery, so it cannot be charged at any time. The life of lead-acid battery is calculated according to the number of charge and discharge. The battery is most afraid of power failure, and keeping enough power often can prolong the life of the battery.

2. When charging, the charger indicator light turns red first and then green; After the green light, it is guaranteed to float for 2 hours, which is beneficial to inhibit battery vulcanization.