SunExplorer II 25D-MPTLi: 25Amp Kit using Multi Point Tracking & PWM with Display


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PVCM25-MPTLi Amp Charge Controller Kit with Display:
Product Sheet
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Product Overview

The PVCM25D-MPTLi charge controller is only compatible with the SEDM4-25 and the SEDM6-25. The SEDM6-40 will show 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 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.

The SEDM6-25 is the display unit for the PVCM25D-MPTLi controller, It has a high quality brushed aluminum face plate and it displays the battery percent remaining and its associated LED. The display’s select button allows the user to turn on its back light, advance to the next display setting, reset the solar amp-hour accumulator, force the PVCM25D-MPT into a charge routine to top-off the battery(s) when controller is in float mode, lock the display on the current setting, or activate scroll mode.

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

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  • 5
    Sunexplorer II

    Posted by Walt Bolton on Oct 12th 2021

    Easily replaced old Sunexplorer unit. Seems to work great! Cannot over-praise support folks who guided me through the purchase and installation! Thank you Abner!

  • 5

    Posted by Rio L Pierce on Jul 19th 2021

    Works GREAT easy to install if it was NOT under the couch. TECH help was GREAT. Thank YOU Abner.

  • 5
    Product and customer service.

    Posted by Joe Krueger on Apr 29th 2020

    The install was easy enough, especially since it was replacing an older model by the same company. Big difference is the customer service. I am not well versed in this technology and the help I got from Abner via email and phone was immeasurable. The product looks like a solid design and it appears to work as advertised, but in addition to that, customer support is very important to me as to who I will recommend and use in the future.