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Lithium-ION Charging System Conversion (RMS900-106857), image 1

Rmstator

Lithium-ION Charging System Conversion (RMS900-106857)

StatorsSKU RMS900106857

Cheapest we found

$981.95

at XPERT Moto Gear

$981.95 lowest$1,049.99 highest

7 recent in-stock prices · spread $68.04 (7%)

Based only on in-stock prices checked in the last 30 days. 7 stores checked; dates for every store are shown below.

Recorded store prices

Prices we recorded when we last checked each store for this exact variant.

Product details

Stop burning your voltage regulator rectifier! It is time to update or replace your voltage regulator with the advanced MOSFET type.

It runs cooler than all SCR diode-style OEM regulators. In addition, this rectifier has overheat protection, rather than burn up it will simply turn off for a while and cool off.

Top Features:

  • Direct replacement to your original unit
  • Plug-and-play, direct fit, easy installation
  • The quality exceeds the OEM part
  • Higher grade of electric components

Opposite connector (main harness side) included as we know these are often melted/corroded/defective and a major cause for repetitive electrical issues.

Why do you need a different voltage regulator for lithium batteries?

Lithium batteries have different charging requirements than Lead Acid or AGM batteries that can severely affect their lifespan and performance. The key factors in safe and reliable lithium battery charging are the output DC voltage ripple and average output voltage. The RMSTATOR regulator is designed around the optimal parameters for these factors.

The ripple effect is all that matters

Charging voltage ripple in a Powersports application is the difference between the highest and lowest voltages from the voltage regulator output. By nature, a common shunt style voltage regulator will have a fairly high voltage ripple due to the regulation shunt switches opening and closing frequently. Each on/off transition will cause some variation in the output voltage, this is unavoidable. Keeping this to a minimum is critical for Lithium batteries, and the RMSTATOR Lithium regulator is designed around this feature.

In a perfect world, a ripple of less than 10% of the output voltage (~1.5V for a typical regulator), would be ideal, however, is not practical for this type of regulator. The RMSTATOR Lithium regulator is able to maintain a less than 4 Volts output ripple, compared to verified test results of our competitors 8 volts. Keep in mind this ripple voltage is only seen via an Oscilloscope sampling the voltage 1000’s of times a second, and is not the same as your average charging voltage as measured by a multimeter.

Stator Dimensions:

  • Interior diameter: 18 mm
  • Exterior diameter: 68 mm
  • Thickness: 42 mm
  • Length of wires stator to grommet: 125 mm
  • Length of wires grommet to plug: 500 mm

Other Specifications:

  • Number of wires: 3
  • Number of plugs: 1
  • Number of pins: 3
  • Alternator: Between each White = 0.4 ohms +/-20%

Regulator Dimensions:

  • Width: 94 mm
  • Length: 114 mm
  • Height: 32 mm
  • Fixation holes centre to centre: 74 mm

Other Specifications:

  • Number of plugs: 2
  • Number of pins: 5
  • Number of wires: 5
  • Minimum Charging Voltage: 14.0 V ± 0.2 V DC
  • Maximum Charging Current: 50 A / 500 W
  • Operation Temperature: -20° to 85°

Flywheel Dimensions:

  • Exterior Diameter: 80 mm
  • Interior Diameter: 69 mm
  • Interior Diameter Center Housing: 12 mm
  • Exterior Diameter Center Housing: 18 mm
  • Thickness (exterior): 11 mm
  • Thickness (interior): 6 mm

Please Note:

  1. All electrical components must be fitted by a qualified technician.
  2. Before fitting electrical components ensure the root cause of the original failure has been addressed.
  3. The absence of either of points 1 or 2 above, will void any warranty.

Price history

Recorded changes for this exact variant.

Step chart of dated store-price observations. Solid lines show confirmed crawl coverage, dashed lines show overdue missed-check spans, and every line stops at the last confirmed price.

  1. 1XPERT Moto Gear9 points · last checked 22 Aug 2026
  2. 2MotoHeaven7 points · last checked 21 Aug 2026
  3. 3Adventure On Store1 point · last checked 22 Aug 2026
  4. 4Coffs Motorsports1 point · last checked 22 Aug 2026
  5. 5Gold Coast Dirt Bike Performance5 points · last checked 22 Aug 2026
  6. 6Shark Leathers5 points · last checked 22 Aug 2026

1 more store series is not shown to keep the chart readable.

Solid steps show periods confirmed by the store’s change-only price history and completed crawl record: if the price had changed at a check, another point would appear. Dashed steps show overdue periods with no completed crawl confirmation. Every line stops at that listing’s last confirmed check and is never extended to today. Prices are not live and may have changed since the last point shown.

How we collect and compare prices
Cheapest we found: $981.95 · XPERT Moto GearJump to comparison