the battery on your meter has to be replaced.
What voltage battery are you referring to? An automobile battery is 12 volts and a fully charged auto battery should read 12.6 volts.
1.55 volts
A good AA battery has about 1.5 volts across it.
1.5 volts
1.5 volts
The battery for an 95 Infiniti J30 is 12 Volts.
The inverter isn't run off the alternator... it's run off the battery. The alternator simply recharges the battery.
12 volts
12 volts
12 volts DC.
It could be the battery or the alternator. Take it to an auto parts store and ask them to do a test of your battery and alternator. Most large auto parts chain stores will do this for free.