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Re: (ET) volts
As already noted, it is important that a controller be added to keep the
mower motors at 36 volts if changing to a 48 volt battery pack.
It is also important to replace all the controls for the drive motor,
PTO, etc. as the relay coils are designed for 36 volts and will have a
short life at 48 volts. I believe Mark used an electronic controller,
and may have kept the field limited to 36 volts.
And depending on how you get the 48 volts, it may be difficult to get
the 12 volts needed for the light and the 18 volts needed for the lift.
Using 16 volts might work for the lift, but would give the lights a very
So it is possible, but not a trivial task.
David Roden wrote:
On 14 Apr 2006 at 16:44, Ferguson Apiaries wrote:
Does any one know if the 36v could be run on 48v without harm to the
Mark Hanson, who I daresay knows what he's doing, converted his E15 to use
48 volts. IIRC, he ran full voltage to the drive motor (but without field
weakening). However, he used a second PWM controller to drop the voltage on
the mower motors to 36 volts.
1997 Solectria Force
1998 Chevy S-10 NiMH BEV
1997 Chevy S-10 NGV Bi-Fuel