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Projecta AC040 4A 12V 8 Stage Battery Charger

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SKU: AC040


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Projecta Charge N Maintain Chargers are Smart Chargers

The new and improved Charge N Maintain is perfectly suited to the DIYer. No fuss options mean you can simply hook them up and the charger will do the rest. Projecta Charge N Maintain range offers a safe and practical method for charging all your automotive and marine batteries. Projecta Charge N Maintain Chargers are smart Chargers. This technology offers switchable charging stages that ensure an accurate and efficient charge for your battery. This allows longer life and better performance for your battery over extended periods. Projecta Charge N Maintain Smart Chargers communicate with the battery and ascertain its level of charge. This allows the charger to balance its load and optimise its charging methods to ensure charging is stopped when the battery reaches capacity.


  • Fully Automatic- Simply connect and forget, no risk of overcharging, maintains battery ready for use
  • Safe & Easy- Short circuit and polarity protected, safe to use while the battery is still in the vehicle
  • Adjustable Output- Adjustable to suit different battery sizes for optimum charging
  • Fused Wiring Harness- Quick-connect fused wiring harness for permanent installation (BCWH)
  • 5-Year Warranty -Ensured durability with our 5-year warranty


  • Type: 8 Stage Automatic 12v, 3 Stage Automatic 6V
  • Input: 220VAC-240VAC, 50-60HZ
  • Output: 12V/6V
  • Output Current: 12v 1, 4A, / 6V 4A
  • Minimum Start Voltage: 2.0V
  • Back Drain: 2mA
  • Approvals: Electrical Safety, EMC
  • LCD Screen Indications: Whilst charging the screen will show the battery voltage and battery gauge
  • 12V SLOW CHARGING: 12.4V / 1.0A
  • 12V FAST CHARGING: 14.4V / 4.0A
  • 12V WINTER CHARGING: 14.7V / 4.0A (Winter Mode is used when the temperature of the battery is <5 C.
  • 6V CHARGING: Charges 6V batteries

Battery Charge Times:

  • Amps: 1amp-Slow Deep cycle Ah 7-24 Automotive CCA 40-140 Marine MCA 55-200 Time Hrs 7-26
  • Amps: 1amp-Fast Deep cycle Ah 24.80, Automotive CCA 140-480, Marine MCA 200-650, Time Hrs 6-24

Projecta AC040 Specs

Model Name

4A 12V 8 Stage Battery Charger





Projecta: Powering Progress with Innovation


Projecta, a prominent name in the world of electronics and power management, has carved a niche for itself with its innovative products and commitment to quality. The brand has become synonymous with reliability and efficiency, offering a range of products that cater to both professional and personal needs.

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