We think of motorcycle batteries as being 12v but they actually hold more and more is required to start the bike.
Motorcycle battery voltage at rest.
Start the engine and check the voltage while doing so.
If a battery reads 12 volts at rest it is almost fully depleted.
Once a battery drops below 12 4 volts your bike will struggle to start and at under 11 8 volts 12 volt batteries are considered to be dead.
If my battery dies can i recharge it.
A healthy 12 volt battery should ideally register around 12 7 12 8 volts at rest but anywhere between 12 5 13 5 volts indicates a serviceable battery.
Fully charged and in peak condition each cell has a voltage across it s terminals of 2 1v.
The following table shows how battery voltage corresponds with state of charge at 80 degrees f.
What voltage should my motorcycle battery read.
The primary battery voltage is dictated by the chemistry of the lead acid cell.
Whats people lookup in this blog.
Step 3 shift your motorcycle into neutral.
Even though you are testing a 12 volt battery you should know that a battery that is truly 12 0 volts is a boat anchor.
For example a fully charged battery at rest should be between 12 6 and 12 75 volts.
Motorbike batteries are made up from a combination of such cells connected in series to give the required voltage.
A fully charged 12 volt battery allowed to rest for a few hours or days with no load being drawn from it or charge going to it will balance out its charge and measure about 12 6 volts between terminals.