How Much Voltage Is Required To Charge A 12v Battery. It needs at least 129 volts to charge but at this voltage the charge rate of an automobile battery is very slow. The typical charging voltage is between 215 volts per cell 129 volts for a 12V 6 cell battery and 235 volts per cell 141 volts for a 12V 6 cell battery.
It is often somewhat misleadingly quoted just as charging voltage the bulk stage which is most of the charging actually happens at a much lower voltage. The voltage required to charge has to be larger than the voltage present so if the battery is at 12 v even 121 volts will eventually charge. As the battery gets charged the terminal voltage begins increasing gradually until it reaches the set 142 V.
You need to leave the battery alone for at least a couple of hours after charging.
For example a Duracell Rechargeable AA Battery 2650mAh battery specifies the. Now how much voltage and current do we need to give from our DC power supply to recharge the batteries. Answer 1 of 10. What is the car battery charging voltage.
