If AC, use a transformer. If DC, use a voltage regulator (lossy), or Pulse-Width Modulation (PWM; complicated) to limit the voltage/current.
Abc 123, 2c4 783, 56v 6vk, 88u hgy, 97h yfb, hb7 884
can a 12v lawn mower sealed battery be charged with 12v battery charger use on cars
Volts * Amps = Watts 12V * A = 150W A = 150W/12V A = 12.5
Anything needing 12V to operate.
12v, 3.3v 5v
12v
No, you need at least 12v to charge 12v. Most alternators charge at 13-14 volts.
The battery is a 12V car battery.
YES
DC 12V power supply can convert 110/220V AC power source to 12V DC.
No, you can not charge a 3V battery with 12V charger.
12V 5A = 12V 5000mA