4 Amp | 6V and 12V Battery Charger



  • Ability to charge multiple battery chemistries
  • Overload and reverse connection protection
  • Capable of charging battery sizes 12-120Ah
  • Charging lithium (LiFePO4) battery sizes 8-50Ah
  • Cold mode for battery temperature under 5°C


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Versatile 4 Amp battery charger with adjustable output

BMPRO’s 12V 4 Amp battery charger BatteryCharge4 is an automatic battery charger with eight charge states (including pulse and trickle charge modes). It is designed to increase your battery’s life and performance.

BatteryCharger4 is adjustable to 0.9, 3 or 4 Amps and compatible with all 6 and 12 Volt Lead Acid (AGM, Gel, Calcium, Wet) and LiFePO4 Lithium batteries.

Use it to service your car, caravan, bike, boat or spare battery charging needs. Equipped with short-circuit, over-temperature and overload protection, the BatteryCharge4 has a large LCD display with indicators to let you know the charge progress of your battery.

Other options available: 7 amp, 15 amp and 25 amp battery chargers.



Variable up to 4.0Ah


240V, 50Hz

Battery Size

12Ah - 120Ah

Battery Type

Lead-acid, LiFePO4

Battery Chemistry

AGM, Gel, Calcium, Wet, LiFePO4

Charger Type


Housing Protection


Power Supply Mode



The minimum start voltage for the BatteryCharge4 is above 2V.

Below this voltage it is unlikely that the charger will detect a battery, and therefore will not commence the charging routine.