Lexron 40A MPPT Solar Charge Controller

The Lexron 40A MPPT Solar Charge Controller (LXR-MPPT-40A) is a solar charge regulator that feeds panel energy into the battery while tracking the maximum power point. It delivers 40 A of charging current on 12/24 V (automatic) battery systems, drawing more energy from the panels while protecting the battery from overcharge in off-grid homes, cabins, caravans and farm systems. Lexron is the brand of ACS Enerji, based in İzmir, Türkiye.

Key features

• MPPT (maximum power point tracking) constantly follows the panels’ most efficient operating point; the manufacturer states the Lexron MPPT range charges batteries 30% faster than PWM units.
• The manufacturer states 99% MPPT tracking and up to 98% conversion efficiency for the Lexron MPPT range.
• Heat-sink aluminium housing that spreads the heat of high currents, keeping it stable in hot weather.
• Detects battery voltage (12 V / 24 V) automatically.
• The manufacturer lists lithium and gel battery support for the range.

Technical summary

• Model: LXR-MPPT-40A
• Charge current: 40 A
• System voltage: 12/24 V (automatic)
• Cooling: Heat-sink aluminium housing

Where it is used

• Off-grid houses and cabins
• Caravans, boats and camping setups
• Farm lighting, cameras and pumps
• Remote telecom and monitoring stations

Which systems is it compatible with?

It is used with 12/24 V (automatic) lithium and gel battery banks, with the charge profile set to the battery type. The panel string’s open-circuit voltage in cold weather must stay below the controller’s panel input limit; Aden Solar sizes the string accordingly.

Installation with Aden Solar

Aden Solar selects the charge controller to match your panel power, panel voltage and battery type. We deliver turnkey off-grid installation: free site survey, panel and battery selection, mounting, wiring and commissioning. We are your contact for warranty and technical support.

Frequently asked questions

What is the difference between MPPT and PWM?

A PWM controller pulls the panel voltage down to battery voltage and the difference is lost as heat. An MPPT controller converts the surplus voltage into current, so more energy reaches the battery, especially with higher-voltage panels and in cold or cloudy weather.

How many watts of panels can a 40A MPPT controller take?

Roughly the charge current times the battery voltage: about 480 W on 12 V batteries, about 960 W on 24 V batteries. For an exact figure, check the panels’ open-circuit voltage against the controller’s panel input limit.

Can an MPPT controller be used with a lithium battery?

Yes. The manufacturer lists lithium and gel support for the Lexron MPPT range; select the charge profile that matches your battery during installation.

What does a charge controller do?

It sits between the panels and the battery, protects the battery from overcharge and unnecessary discharge, and charges in stages suited to the battery type. Without one, a panel wired straight to a battery shortens its life quickly.