ePOWER 12V 40A Battery Charger

ePOWER 12V 40A Battery Charger – 8-stage Smart Battery Charger

The ePOWER 12V 40A Battery Charger is a 8-stage 3-output smart charger that simultaneously charges up to three separate battery banks — house battery, start battery, and an auxiliary battery — from a single shore power connection.

At 40A output, it charges larger lithium and AGM battery banks quickly, and the 8-stage-stage charging profile extends battery life significantly compared to basic chargers.

Key Features

• 40A Charging Current Fast charging for larger bank setups

• 3 Independent Outputs Simultaneously charges house, start, and auxiliary batteries

• 8-stage-Stage Charging Bulk, absorption, float, equalize — optimised for battery type and longevity

• Supports Multiple Battery Types Lead-acid (AGM, gel, flooded)

• 240V Shore Power Input Plugs into standard NZ shore power supply

• Comprehensive Protection Over-voltage, over-current, short circuit, reverse polarity

Add to cart and keep your batteries charged and healthy.

Brand: Enerdrive ePOWER

Charging Current: 40A

Outputs: 3-Output

Charging Stages: 8-stage

Battery Types: Lead-acid (AGM, gel, flooded)

Input: 240V AC shore power

Price: $799

What size charger do I need for my battery bank?

A general rule: a 10–20% charge rate is ideal. For a 100Ah battery bank, a 10–20A charger is appropriate. For 200Ah, a 20–40A charger. For large lithium banks of 300Ah+, a 40–60A charger significantly reduces charge time. Faster charging is not harmful provided you don't exceed the battery manufacturer's maximum charge rate.

What are the 3 outputs?

The three outputs allow you to simultaneously charge your main house battery bank, your vehicle start battery, and a third auxiliary battery (such as a fridge battery). Each output is independently managed.