What Is Full Charge On A 12 Volt Battery. When a battery reads only 12 volts under. When we charge the batteries we should bring them up to at least 14 volts to have them fully charged.
If the reading is 1245 volts or less the battery is low and needs to be. A meter reading of 122 volts or 120 volts will indicate a charge rate of 50 percent and 25 percent respectively. If it shows anywhere in between 124 to 128 then your battery health is perfect.
If your battery volt read is more than 128 like 129 or 13 then your battery is excessively charged.
When charging it charges at 225 volts per cell for a total of 135 volts. Any readings below 119 volts will indicate a fully discharged battery and damage may have occurred to. Each 12 volt battery has 6 cells at 212 volts per cellwhen fully charged. A meter reading of 122 volts or 120 volts will indicate a charge rate of 50 percent and 25 percent respectively.
