RAM Promaster
Embrace #vanlife – or get more work done. Whether your Dodge RAM Promaster takes you to work or play, ample on-vehicle power makes it possible.
American Power Systems, Inc. provides the unmatched ability to quickly and properly charge any commercially available battery type for Promaster, including lithium-ion. We also lead the industry with power-at-idle solutions for Promaster and other vocational vehicles.
Our solutions include single high output alternator upgrades (up to 360 amps); dual alternators brackets and kits; and smart, CAN-equipped alternator regulators to ensure optimal power system performance and longevity. We also supply high-idle switches and additional components to get your van ready for work or adventure—no matter where you’re headed.
Selected DC power upgrades for Dodge RAM Promaster are featured below. Please contact us about your specific application to learn more or to make a purchase.
Output: Volts | Output: Amps | Solutions by Series | Alternator Position | Mount(s) |
48-56 volts nominal | 160 amps | 160 HPI Series High Output Alternators | Secondary position with APS bracket (typical) | Application specific |
28 volts nominal | 185 amps | 185 HPI Series High Output Alternators | Secondary position with APS bracket (typical) | Tangent |
12 volts nominal | 255 amps | 255 HPI Series High Output Alternators | Direct OE replacement; secondary position with APS bracket (typical) | Application specific |
12 volts nominal | 300 amps | 300 HPI Series High Output Alternators | Direct OE replacement; secondary position with APS bracket (typical) | Application specific |
12 volts nominal | 360 amps | 360 HPI Series High Output Alternators | Direct OE replacement; secondary position with APS bracket (typical) | Application specific |
- May be installed with minimal disruption to OEM components
- Use existing mounting points
- May be installed on a separate drive system to avoid interference with the original, OEM drive. (For example, we can create a split system operating at two different voltages.)
- Include complete installation instructions
- More power at idle: Our high idle switches allow end-users to access more power at vehicle idle with the flip of a dash-mounted switch. These are often sold as part of a dual alternator kit.
- Better batteries: APS recommends high-quality AGM, or lithium-ion battery solutions, when developing configurations.
- Additional power components and accessories: APS also provides components including DC to DC boost converters, DC to DC step-down converters and battery isolators, to ensure dependable power to all vehicle equipment and systems.

Please contact us to make a purchase or inquire about solutions for your application.