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 EDL4Li-VoltRect 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 1000’s of times a second, and is not the same as your average charging voltage as measured by a multimeter.

ELECTRICAL CONNECTIONS:
CASE = Ground
RED Wire = B+ (starter solenoid)
WHITE wire = Generator light output (optional. If not used, insulate to prevent shorting to ground!)
YELLOW wire x 2 = AC current from stator (both are AC current, and can be connected interchangeably between the two.)

ELECTRICAL TERMINALS PROVIDED:
Included are replacement terminals to connect, depending on your configuration, to the AC YELLOW wires off of your stator, and for your generator indicator light.
Note these terminals have built in heat shrink, once crimped, apply heat to seal.

DIMENSIONS:
Width: 96 mm
Height: 69 mm
Depth: 24 mm
Mounting holes on Center: 80 mm horizontally, 36 mm vertically

EME Part #	EDL4LiVoltRect
BMW
EDL4Li	EnDuraLast Kit
EDL450-AltKit	EnDuraLast Kit
EDL450-AltKit105	EnDuraLast Kit
MOTO GUZZI	37703805
Nevada 750	93-97
Nevada 750	98-01
Nevada 750	3-Feb
Ippogrifo V7	97-98
750 X Polizia	95-02
850 T5 Polizia	94-01
California 1100	94-97
California Special	99-02
California Jackal	99-01
California EV	97-02
California Stone	2-Jan
Daytona 1000	92-98
V10 Centauro	96-01
V11 Sport	98-01
V11 LeMans	4-Jan
Quota 1000	91-97
Quota 1100 ES	98-02
1000 Strada	1994
Sport 1100	98-99
Sport 1100 Injection	96-99
1100 Sport	2000
DUCATI
Superbike 748 Biposto / SP	95-97
Superbike 748 S	1997
Superbike 851 Strada	89-91
Superbike 851 S3 Strada	1992
Superbike 851 SP 3	1991
Superbike 851 SP 4	1992
Superbike 888 Strada	1993
Superbike 888 SP5	1993
Superbike 888 SP0 Strada	1994
Superbike 916 Strada	94-95
Superbike 916 Biposto / Senna	95-97
Superbike 916 SP / SPS	1997
M600 Monster	95-98
M750 Monster	96-97
M900 Monster	94-95
Monster 900	96-97
Sport Touring ST2	97-98
600SS	94-98
650 Indiana	1987
750 Paso	86-90
750 Santa Monica	1988
750 Sport	89-90
750SS	91-97
750SS C	94-96
900SS Super Sport	90-92
900 Superlight	92-95
900SL Superlight	1996
900SS	1993
900SS / CR	94-97
906 Paso	89-91
907 i.e. Paso	91-92
907 I.E.	1993
500 Pantah	78-80
500SL Pantah	81-83
600SL Pantah	81-84
600TL Pantah	82-83
600TL	1985
750SS	73-78
750F1	85-88
860GT	74-76
860GTS	76-78
900 S2	1983
900SD Darmah	77-83
900SS	75-84
900SS Hailwood Replica	79-85
1000SS Hailwood Replica	84-84
1000 S2	84-85