Ahh, That explains it! I would assume the only way to do it would be with =
a boost converter or inverter, as the motors are probably designed for 120V.
I guess an on-the-cheap way would be to get a cheap chinese inverter of the =
requisite capacity and add enough battery to handle your lawn. It might be =
a better idea to make a quick-change battery system so you can stick with =
lighter amounts of lead, and then swap them out to get the "range" you need.
If the motor is DC capable (series-wound or PM with a recitifer), then go =
into the inverter and tap out the DC before it gets to the switching stage =
(look for a large capacitor(s)). This will likely improve efficiency. I'v=
e =
also been successful at adding a pot to the voltage feedback divider circui=
t =
to adjust the DC output voltage. You might be able to dial it down for mor=
e =
range with this trick.
-Phil
----- Original Message ----- =
From: "Peter Eckhoff" <
[email protected]>
To: "Electric Vehicle Discussion List" <
[email protected]>
Sent: Saturday, October 13, 2007 9:34 AM
Subject: Re: [EVDL] MM675 conversion
I "saved" two B&D's from the dump. Thought that they might make a good
EV project.
Peter
(=A4Phil=A4) wrote:
> Why not just get the 24V CMM1000?
>
> -Phil
> ----- Original Message ----- =
> From: "Peter Eckhoff" <
[email protected]>
> To: <
[email protected]>
> Sent: Saturday, October 13, 2007 7:41 AM
> Subject: [EVDL] MM675 conversion
>
>
>
>> Black and Decker makes a corded electric mower with a part number of
>> MM675.
>>
>> Has anyone converted one of these to battery only?
>>
>> If so, how did you do it?
>>
>> Peter
>>
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