No it just means it's charging.
lightning bolt means it's charging.
The meter on your battery charger will be in the green
It is a 12 volt battery. Fully charged it will read 12.6 volts with a digital volt meter.
When you see 100% of the battery meter and an icon of unplugged pin beside it.
You should read 12.6 volts with a digital volt meter on a fully charged battery with the engine not running.
Fully charged it should read 12.6 volts with a digital volt meter. 12.4 = 75% charge, 12.2 = 50%, 12.0 = 25%.
Most batteries today are sealed so a hydrometer is useless. A fully charged battery will read 12.6 volts with a digital volt meter. At 75% charge it will read 12.4 volts, at 50% it will read 12.2 volts and at 25% charge it will read 12 volts. But if you have another type battery then here is what you need to know. A fully charged golf cart battery or fork lift battery will read 1300 A fully charged auto or truck battery will read 1275 A fully charge cell phone tower or solar storage battery will read 1250
Most batteries today are sealed so a hydrometer is useless. A fully charged battery will read 12.6 volts with a digital volt meter. At 75% charge it will read 12.4 volts, at 50% it will read 12.2 volts and at 25% charge it will read 12 volts. But if you have another type battery then here is what you need to know. A fully charged Golf cart battery or fork lift battery will read 1300 A fully charged auto or truck battery will read 1275 A fully charge cell phone tower or solar storage battery will read 1250
12.6 volts as read with a digital DC volt meter.
A fully charged 12 volt battery will output 12.6 volts are read with a digital volt meter.
Remove the battery from under the driver's seat. Connect it to a small battery charger suitable for motorbikes. Connect the leads to the terminals. Charge until the meter on the charger shows that the battery is fully charged.
Take a DC volt meter and check the voltage at the battery. Red probe on positive + terminal and Black probe on negative - terminal. If it reads 12.6 volts it is fully charged. 12.4 and it is 75%, 12.2 and it is 50%, 12.0 and it is 25% charged. Less than 12 volts and it is considered a dead battery.