Sports: Re: [DucatiST] Motolectric

When the load on the battery is increased, the battery voltage drops. If the starter cable increases the load then the battery must over come this load as well as the starter load. If you have access to a battery tester hook it up and gradually increase the load and watch what happens to to the battery voltage or hook a multimeter to the battery. If you have a good strong battery the voltage will drop a volt or two, a poor battery will drop 5 or 6 volts and hence a slow dragging start.

From: Derek Blackie <d.w.blackie@dundee.ac.uk>
To: st2_owners <st2_owners@yahoogroups.com>
Sent: Mon, August 30, 2010 5:24:01 AM
Subject: Re: [DucatiST] Motolectric - Odyssey

I fail to see your reasoning here. The higher resistance of the starter
cable does indeed drop the voltage to the starter but it DOES NOT drop the
voltage at the battery and hence to the ECU etc.
The voltage to the ECU and other systems will only drop dependant on the
internal resistance of the battery - unless they were connected to the
starter terminal which they aren't!

Derek
--
'03 ST4s abs
Scotland

On 29/08/2010 22:17, "james duncan" <awpptdt@yahoo.com> wrote:

>
> Actually it does provide more voltage, as you increase the electrical load
> through more resistance in the small starter cable it drops the voltage on the
> whole system. Ohms= law current is inversely proportional to voltage.
>
>
> From: Michael Heth <mheth@motolectric.com>
> To: st2_owners@yahoogroups.com
> Sent: Sun, August 29, 2010 4:58:19 PM
> Subject: Re: [DucatiST] Motolectric - Odyssey
>
>
>
> On Aug 27, 2010, at 10:56 PM, Nick Woods wrote:
>>
>> Looks to be very nice quality! I'd be tempted, but with my own cheap
>> upgrades to the main power links and an Odyssey battery, my ST4
>> already starts in one second.
>>
>>
>> It strikes me that allowing the starter to receive more current and
>> spin faster does not, per se, make more voltage available to the ECU
>> and injection gear.
>>