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Lithium Specific Mosfet Voltage Regulator & Rectifier Combination / EnDuraLast
Lithium Specific Mosfet Voltage Regulator & Rectifier Combination / EnDuraLast
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Part #: EDL-VoltRectLi

Combination Electronic Voltage Reg & Rectifier designed specifically for Lithium Batteries.

Vehicle Manufacturer: BMW
Application: BMW Hexhead, Scooters and S & HP4 Models
Make/Model: BMW :C600, C650, HP4, S1000, R1200GSW, R1200R, R1200RS, R1200RTW
Model Years: 2008 - 2017
Vehicle Mfg. Part #: Replaces;12 31 7 718 422, 12 31 8 523 367
Note: This voltage regulator is ONLY for lithium batteries

Will not work with the BOSCH alternator design used on BMW Airheads.
CAN be retrofitted to work with the EnDuraLast 450 Alt Kit.

Output Voltage is the key factor in a voltage regulator designed specifically for Lithium batteries. The ideal charging voltage for Lithium batteries is 13.9-14.2VDC. The EnDuraLast regulator has a carefully set output voltage of 14.1VDC (+/- 0.1VDC). This stable and ideal output voltage carefully keeps a lithium battery in itís ideal charging range.

Battery condition is important. No regulator can make up for a bad or weak battery. If in doubt charge your battery and have it load tested, or simply replace it.
Will not work with the BOSCH alternator design used on BMW Airheads. CAN be retrofitted to work with the EnDuraLast 450 Alt Kit.

EME Price $139.99


Technical Specs Application Table
Brand new Mosfet voltage regulator rectifier THAT WORKS WITH LITHIUM BATTERIES ONLY
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
  • Plug-and-play, direct fit, easy installation
  • The quality exceeds the OEM part
  • Higher grade of electric components
  • All shipped products are tested.
  • 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 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 minimum is critical for Lithium batteries.

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 EDL-VoltRectLi Lithium Specific 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 1000ís of times a second, and is not the same as your average charging voltage as measured by a multimeter.