12.5v
if the engine is running it will show between 12.5 and 14 volts. if the engine is off anywhere between 12 and 14 volts is normal.
A fully charged 12 volt automotive battery should have 12.68 volts.
Normally, no it should be fully charged if it is a fresh battery.
A fully charged 12 volt battery will read about 12.6 volts, or 2.1 volts per cell.
6.4
Depends how flat it is and the capacity of the charger and also capacity of the battery. A 6 volt battery fully charged should read about 6.5 to 7 volts when fully charged.
When it is charging the screen reads: Battery Charging. When it is fully charged it reads: Battery Charged.
That depends on the battery, and the charger. my charger has different settings for higher amps to give a faster charge or jump. A fully charged battery will show 12.6 volts. The charger will read it's maximum amperage if the battery is totally discharged. A fully charged battery will read 12.6 volts with a digital DC volt meter. If it reads 12 volts it has less than 25% charge.
If the charger has a ammeter on it then it should show close to zero which means the battery is no longer pulling any current from the charger which would mean the battery is fully charged. If it has only a voltmeter then it should show 12.5-13.5 vdc
With a fully charged battery (12.68 volts) and engine running at idle with no accessories on, 14.5 volts. You will not get a accurate reading if the battery is not fully charged.
there should be an battery sign and there look at it. there is probably a white part in the battery then that is the amount of battery you have left.
As long as you keep them charged you do not have to remove them. A fully charged battery will not freeze, but a dead battery will.
Fully charged battery should have 12.6 volts. 75% charged 12.4 volts, 50% charged 12.2 volts, & 25% charged 12.0 volts.