When choosing a battery charger for a lead-acid battery, you can consider things like:
  • Voltage: The voltage of the charger should match the voltage of the battery.
  • Capacity: The charger should be no more than 20% of the capacity rating of the battery. For example, to charge a 12 volt / 7.5Ah battery, you would need a charger with a maximum charge output of 1.5 Amps.