SunExplorer PVCM25D-MPTLi: 25Amp Solar Charge Module using Multi Point Tracking & PWM


(3 reviews) Write a Review
In-Stock products will usually ship within 3-5 business days. For order quantities of 3 or more or for expedited orders please call to verify. Purchases without an expedite are processed in the order in which they are received.
Product Sheet
Airstream Flyer:
Airstream Flyer
Adding to cart… The item has been added

Product Overview

The PVCM25D-MPTLi charge controller is only compatible with the SEDM4-25 and the SEDM6-25 displays. The SEDM6-40 will display incorrect information.

The PVCM25D-MPTLi controller is a drop in replacement for the two stage PVCM25D controller.

If you’re ready to update your trailer’s solar charge controller to smart 6 stage charging, here is a drop in replacement that keeps the factory look. You can use the original display or upgrade to SEDM6-25.

The 25 Amp solar charge module with Multi Point Tracking (MPT) controller (PVCM25D-MPTLi) is a rugged inline solar charge controller. It uses Pulse Width Modulation (PWM) to control the solar charge current. The controller delivers the maximum charging rates throughout each of the charging stages and connects between your 12VDC storage batteries. It is Ideal for RV’s, motor homes, trailers and off-grid applications such as small cabin sites. The charge controller is now programmed to work with Lithium batteries along with Flooded Lead Acid (wet) batteries, Lifeline AGM batteries, and other brands of AGM batteries.

The PVCM25D-MPTLi is fully encapsulated and can operate in the wide temperature ranges and harsh environments. It is a micro-processer based, solar charge controller with temperature compensation that is used for AGM, LiFePO4 or flooded batteries. It automatically charges your battery to 100% and keeps the battery in float stage. If your battery gets too low, it goes into Automatic Boost Mode keeping your batteries full and extending the life of your batteries.

The PVCM25D-MPTLi micro-processor based solar charge controller connects between the solar panels and the storage battery(s). It performs 7 basic functions:

  • It monitors the solar panel voltage to know when it has enough to start charging the battery(s) and when to stop charging due to end of day.
  • It monitors the battery voltage to know if to enter a soft charge (battery voltage below 10.5VDC or enter the bulk charge routine, when to enter the absorption and float routines
  • It adjusts the PWM charge algorithms based on varying load and solar conditions to maintain the maximum charging rates.
  • It checks the available solar charge voltage every second to make sure there is sufficient voltage available. If not, it suspends the charging routine until the solar voltage increase or it drop below 5VDC which it then enters night or end of day routine.
  • It compensates for battery temperature and adjusts the charge thresholds voltages when mounted in the battery area.
  • It accepts the battery top-off command signal from the SEDM6-25 display to enter a charge routine to top off the battery(s).
  • On power up it checks its battery type dip switch and sets to correct routine for that battery type.

WARNING: Metal shavings left in the wall during install will cause damage to the display and will no longer be covered under warranty.

Product Videos


(3 reviews) Write a Review

3 Reviews Hide Reviews Show Reviews

  • 5
    Solar module

    Posted by Art Grobben on Jul 8th 2022

    Easy to install and very versatile for multiple battery types.

  • 5

    Posted by Taylor C on May 20th 2022

    Customer support GREAT! Product easy to install and works with my existing remote display on my 2006 Airstream

  • 5

    Posted by Patricia Marshall on Jul 23rd 2021

    I bought this as a direct replacement for the Sunexplorer charge module that came on my Airstream Basecamp since I was upgrading my batteries to lithium. I can’t say enough about the performance of this unit. Simple to installl. Works flawlessly.