Hi Eric,
The shunt for the Turnigy Watt Mater is at the motor so I do not see battery charger amps.
Do you know if the 28 amps at the start of charging while at 95% SOC on your system is a function of the charger just doing what it is programed to do? I guess I'm having a hard time asking this question.
Could the feeble regen we are seeing be because no one has monitored regeneration on a depleted bank?
Thanks
Mark
Santa Cruz
--- In electricboats@yahoogroups.com, "Eric" <ewdysar@...> wrote:
>
> Hi Mark,
>
> I would assume that your meter should show charging amps, regardless of the source. So, you should see current when you're plugged in at the dock too.
>
> For your other question, I haven't seen a sign of current going back into my batteries under sail.... yet. It's more than a nautical mile from my slip to the open ocean, so by the time I get out, I've usually used at least 300Wh (6Ah), more if want to get out there quicker. So under sail, I'm typically sitting below a 95% SOC. My charger will start up by pushing the full 28A when I plug in. So the batteries are ready to accept a charge, I just haven't seen it yet. Of course, the prop sitting in an aperture behind a thick keel doesn't help.
>
> Fair winds,
> Eric
> Marina del Rey, CA
>
> --- In electricboats@yahoogroups.com, "acsarfkram" <acsarfkram@> wrote:
> >
> > Hi Chris,
> >
> > The Turnigy Watt Meter that I have has to have the leads reversed to read amps in verses amps out. I did add a switch to do that but have yet to see amps flowing into the batteries. I have seen 4 amps at 48 volts register on the PakTrakr. I think the Turnigy might not be sensitive enough at low current, although it will read 10's of an amp battery to motor.
> >
> > Back to my question about trying to recharge a full bank with regeneration. Has anyone monitored regeneration when their batteries are at a low SOC?
> >
> > Mark
> > Santa Cruz
> >
> > --- In electricboats@yahoogroups.com, chris Baker <chris@> wrote:
> > >
> > > Hey Mark,
> > >
> > > Why doesn't the watt meter show some amps going into the batteries? Does it not count "backwards"?
> > >
> > > Cos I would have thought the current is going back in the same way that it came out...
> > >
> > > Cheers
> > >
> > > Chris
> > >
>
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