Promaster-280XP-ER-L High Amp Alternator and External Regulator for Roadtrek Promaster Applications with Lithium Batteries
Promaster-280XP-ER-L High Amp Alternator and Balmar Regulator for Roadtrek Promaster Applications with Lithium Batteries

Base Price: $1,399.95

Product Code: RT-PROMASTER-280XP-ER-L



Fill in your Vehicle Information*:
Original Barcode
Auxiliary Battery Type

Auxiliary Batteries

Fill in your Battery Information*:
Battery Brand
Choose Your External Regulator


PROMASTER-280XP-ER-L High Amp Alternator and Balmar Regulator for Roadtrek Promaster Applications with Lithium Batteries (Underhood Generator )

Used on Roadtrek Simplicity, Roadtrek Zion, Roadtrek Carado with Lithium Batteries

  • This package includes the 280XP Alternator, Balmar Regulator, Harness and Temp Sensor.

  • Note: We pre-program the regulator for Lithium before the order ships out

Today's charging system technology has eclipsed anything ever thought possible 10 years prior. With internal fans, temperature compensation, denser flat wire hairpin windings, 6 phase 12 diode rectifiers and available multi step variable voltage programmable regulators they are able to charge harder and smarter than ever before. Nations has harnessed this technology and adapted it into an elegant fit for the RV Industry. We use customized housings, regulators, wiring harness assemblies and pulleys to make it possible to install this type of charging system to run independently from the vehicle. The factory alternator does what it is intended to do by the original manufacturers while the auxiliary alternator (g/u) takes care of the separate battery bank that supplies power to the added on accessories. This makes the vehicle more dependable and increases the available electrical capacity.

Average Customer Review: Average Customer Review: 5 of 5 5 of 5 Total Reviews: 1 Write a review.

  0 of 0 people found the following review helpful:
5 of 5 Roadtrek Simplicity lithium U.G. June 12, 2020
Reviewer: Anonymous Person from PORTLAND, OR United States  
The replacement U.G. (alternator) and pre-programmed regulator for our Roadtrek Simplicity with lithium house batteries, did not disappoint.  Well worth the investment, and the  tech support at Nations, was superb

Was this review helpful to you?