To calculate the voltage of two batteries connected in parallel, it’s important to note that the voltage across each battery remains the same. Therefore, in a parallel configuration, the overall voltage is equal to the voltage of the individual batteries. This means that if you have two batteries, both rated at, for example, 12 volts, the voltage across the combined setup will still be 12 volts.
The key aspect when connecting batteries in parallel is that the positive terminals are connected together and the negative terminals are connected together. This ensures that all batteries share the same voltage while allowing the overall capacity (measured in amp-hours) to increase.
In summary, the formula can be simply stated as:
Vtotal = Vbattery1 = Vbattery2
For instance, if one battery has a voltage of 12 volts and another also has 12 volts, the total voltage in parallel is:
Vtotal = 12V
It is crucial to ensure that the batteries are of the same type and state of charge to avoid potential problems.