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Amptron AT-240-3620ALFPV01 LiFePO4 battery charger, an aluminium case with a black mounting flange, IEC mains inlet, power switch and vented end panel, labelled 36Vdc 20A with the Australian designed and owned markThe same 36V 20A Amptron charger from the other side, showing the heavy output leads with red and black ring terminals fitted

Amptron

AC-DC 36V 20A Lithium LiFePO4 Battery Charger

AT-240-3620ALFPV01B

The Amptron 36V 20A AC-DC Battery Charger is a high-performance charger designed for 36V LiFePO₄ lithium batteries. With its smart multi-stage charging algorithm, it delivers fast, safe, and efficient charging while maximising battery longevity.

$356.40$396.00 Save $39.60

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Important note

Amptron battery chargers are developed specifically for lithium LiFePO₄ chemistry. This model delivers a precise charge curve that optimally balances voltage and current for maximum performance, safety, and battery health.

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This charger is suitable for battery systems found in:

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The Amptron 36V 20A AC-DC Battery Charger is a high-performance charger designed for 36V LiFePO₄ lithium batteries. With its smart multi-stage charging algorithm, it delivers fast, safe, and efficient charging while maximising battery longevity.

  • Lithium-specific multi-stage charging algorithm
  • RCM Certified for Australian compliance
  • Integrated fan cooling system
  • Aluminium housing for thermal stability and durability
  • Protection from over-voltage, over-current, reverse polarity, and short circuits
  • Automatic shutoff when charging is complete
  • Lightweight and compact for mobile and fixed installations

Input Voltage200–260VAC

Output Voltage43.8–44.4V DC

Output Current20A ±1A

Charge Finish Current1.4–1.8A

Power OutputApprox. 1050W

Max Ripple Voltage≤500mV

Efficiency≥88% at full load

Connection TypeM8 Ring Terminals

Cooling MethodInternal fan

Weight3.0kg

HousingAluminium alloy

Length: 220mm

Width: 135mm

Height: 70mm

Weight: 3.0kg

Source: manufacturer-verified

Everything this install needs

0 of 0 in the box

Connects to standard 240V mains input.

Output is via M8 ring terminals with 1.2m cable.

Install in a dry, ventilated location away from direct heat or water.

Cooling fan ensures thermal protection during operation

This charger is suitable for battery systems found in:
Electric golf carts
Mobility equipment
Marine applications
Off-grid battery banks (36V)
Industrial 36V lithium setups
(Not for use with 12V or 24V systems.)

Can I use this charger on AGM or lead-acid batteries?
No. This charger is specifically designed for lithium iron phosphate (LiFePO₄) batteries and is not compatible with AGM, gel, or lead-acid chemistries.

Is this charger safe to leave connected to the battery?
Yes. The charger automatically stops charging once the battery is full, preventing overcharging.

What type of connector is used on the DC output?
The charger comes with M8 ring terminals pre-installed on a 1.2m cable for easy connection to your battery.

Can this charge a 36V battery bank made of 3 x 12V batteries?
Yes, if your battery bank is configured in series to 36V and all batteries are LiFePO₄.

Does the fan run constantly?
No. The built-in cooling fan is temperature-controlled and will activate as needed during charging to prevent overheating.

What happens if I connect the charger incorrectly?
The charger includes multiple safety protections, including reverse polarity, over-voltage, and short circuit protection.

How long does it take to fully charge a battery?
Charging time will depend on the battery capacity. For example, a 36V 100Ah battery would take approximately 5–6 hours to fully charge from empty.

Can I use this in a sealed or enclosed compartment?
It is not recommended. The charger requires ventilation and airflow to operate safely. Install in a well-ventilated area.

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