You should check the water BEFORE and AFTER an equalization charge.
Chris
On 9/10/10 4:03 PM, "sirdarnell" <sirdarnell@yahoo.com> wrote:
Peter I forgot to mention with flooded lead acid battery banks and a smart controller you can occasionally do an equalization charge. This will bring all batteries in the bank up to full charge. After and equalization charge always check water levels in your batteries as higher voltage batteries in a bank tend to lose water during this type of charge. An equalization charge should never be done on any type of sealed battery.
--- In electricboats@yahoogroups.com <mailto:electricboats%40yahoogroups.com> , "Peter" <peter@...> wrote:
>
> Thanks for all the informative replies!
>
> So it would seem that with the battery banks clustered near the motor, short cable runs would be possible. Also, looking at my present engine setup (Yanmar 2GMF) the electric motor could be located about where the reduction gear box presently sits, leaving room for batteries forward of, and on either side, of the electric motor. This would bring the weight forward for better balance.
>
> On my EV pickup I ran 00 welding cable to the 20 batteries. Although they'd get warm on a steep climb, they never got hot.
>
> Peter
>
> --- In electricboats@yahoogroups.com <mailto:electricboats%40yahoogroups.com> , Jennifer Richards <jennifer_c_richards@> wrote:
> >
> > On 08/09/10 16:40, Peter wrote:
> > >
> > > The OZecoDrive setup uses a 24 volt battery pack, whereas most of the
> > > other off-the-shelf setups use higher voltages. I understand it's all
> > > about Watts, but what are the upsides/downsides of the 24 volt system?
> > > It seems it would give one the option of having a lot smaller battery
> > > bank if you only needed it for docking etc.
> > >
> > From what I understand of it, having higher voltage means you can use
> > thinner gauge cable and reduce transmission loss. However with batteries
> > comes the issue of whether higher voltage will be detrimental to the
> > individual batteries in series, plus the higher the total voltage of the
> > system the more potential for shorting. Secondly it all comes down to
> > matching the voltage required by the motor.
> >
> >
> > In the case of the OZ motor it can run up to 96v; but to do so reduces
> > the life of the motor considerably, and this is why I like to know all
> > about the whole system. It is cheaper for a manufacturer to run a
> > smaller motor to death, but use a cheaper (less efficient or smaller and
> > therefore overpowered) motor than run a better motor at a lower voltage
> > to get the most out of it.
> >
> > Jeny
> >
>
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