Looking at the video on the Torqeedo website, I am guessing that there is probably some sort of current limit on the charging circuit which will only let 45 watts into the battery, perhaps this is because of some parameters in the range calculation algorithms?... as well as considering that they would need some voltage step up circuitry to go from panels nominal 12 volts to +- 33 volts for charging the battery, there would be a current limiting factor there as well on the charging circuit.
So I suppose you could have unlimited or very long range provided that the motor wasnt using more than say 1.5 amps.
rgds
Alan
----- Original Message -----From: MikeSent: Saturday, May 07, 2011 3:12 PMSubject: Re: [Electric Boats] Re: Torqeedo stops production of the Travel 401 and 801 models.
--- On Sat, 5/7/11, Steve <sstuller@netzero.com> wrote:
From: Steve <sstuller@netzero.com>
Subject: [Electric Boats] Re: Torqeedo stops production of the Travel 401 and 801 models.
To: electricboats@yahoogroups.com
Date: Saturday, May 7, 2011, 11:20 AM
I called the 503/1003 dinghy motors because they are range bound by the lack of an external battery connection. They are not practical as auxiliary motors because of the lack of battery capacity. The 801 with its' battery adapter would allow you to hook up four Trojan T-105's with a capacity of 5400 watt-hours. This is ten times the capacity of the 1003's battery. I like the new models. I just wish they hadn't shot themselves in the foot because of the lack of an external battery hookup. Thanks. Steve S.
--- In electricboats@yahoogroups.com, "epowermarine" <todd@...> wrote:
>
> As a dealer who has sold many Torqeedo motors of all sizes, I can easily say that the new Travel 503/1003 motors are better and the old 401/801 in every way except (as you point out) that there is no ability to run off external batteries.
>
> What you can do be hooked up to an external 12v battery to 'charge while running' and thereby supplement the integrated LiMa battery by approx 45 watts continuous, but you don't actually run off the external battery. I have formally requested that Torqeedo design an adapter to allow true external battery hookups, but I do not know if or when this will be available.
>
> The 503 is $200 more than the old 401; and the 1003 is $300 more than the old 801. For the additional money you get a more efficient, waterproof, GPS range calculating, longer running, more powerful, and more flexible motor (solar charge capable, 12v charge capable, etc).
>
> And if your boat is easily driven you can absolutely bolt on the 3 blade 12x10 prop (replacing the T1003's standard 2 blade 12x8)for more speed and maybe more efficiency. Many of my customers have done this with great results.
>
> As for only using them on dinghies, that would be a personal decision. Many of my customers are using them on up to 24ft daysailors, 14ft pontoons, and fishing skiffs, in addition to dinghies.
>
> Capt. Todd
> www.epowermarine.com
>
> --- In electricboats@yahoogroups.com, "Steve" <sstuller@> wrote:
> >
> > Am I the only person on the planet earth wondering why Torqeedo stopped manufacturing the Travel 401 and Travel 801 motors? The new models 503 and 1003 have been reduced to dinghy motors because they cannot be connected to external batteries and the 1003 cannot use the high thrust prop that was on the 801 because of its' higher RPMs. At almost $2000 the 503 and 1003 are just too expensive if their only use is as a dinghy motor. Thanks. Steve S.
> >
>
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