Another example of getting caught by the Ah and voltage thing.
I like the fact that Corvus lists in Wh, it makes it easier for them because they sell at all sorts of voltages.
Looking at these two vendors:
ManzanitaMicro - $1.40/Wh (180Ah @ 12V)
Corvus (bronze) - $1.75/Wh
Corvus (gold) - $1.25/Wh
If I remember correctly, MasterVolt Li - $2.00/Wh (estimated)
These are turn key battery packs with BMS and protected connections. They should also have better warranties and customer service. But is comes at a price.
You can still put together a DIY pack of prismatic LiFePO4 cells with basic BMS for about $0.50/Wh.
As always, it's your money, it's your choice.
Fair winds
Eric
Marina del Rey, CA
--- In electricboats@yahoogroups.com, "Tom" <boat_works@...> wrote:
>
> Sorry, it IS too good to be true.
> I said it was a 48V, but it's not. It's four cells per assembly, so you'll need four of them for a 48V system. I just had 48V stuck in my head.
>
> AS far as package solutions go, it looks like a lot of bang for the buck, but still less expensive to DIY, of course.
>
> -Tom
>
> --- In electricboats@yahoogroups.com, Skip von Niederinghausen <farharbour@> wrote:
> >
> > Wow!!
> >
> > the system from mansinitamicro looks too good to be true!!
> >
> > On Thu, Apr 19, 2012 at 9:45 PM, Tom <boat_works@> wrote:
> >
> > >
> > >
> > > Here's a US mfr with a bit more down-to-earth pricing on various 48V
> > > BMS/battery packages:
> > >
> > >
> > > http://www.manzanitamicro.com/products?page=shop.product_details&flypage=flypage.tpl&product_id=52&category_id=19
> > >
> > > -Tom
> > >
> > > --- In electricboats@yahoogroups.com, Michael Mccomb <mccomb.michael@>
> > > wrote:
> > > >
> > > > Here is what Corvus gave me.  attached PDF and text copy below....
> > > >
> > > >
> > > > Corvus Energy Ltd.
> > > > Leading the way towards your energy solutions
> > > > Corvus Energy Limited 110-13160 Vanier Pl. Richmond, BC, Canada V6V 2J2
> > > www.corvus â€"energy.com Page 1
> > > > Corvus Energy Pricing Guide
> > > > 2012
> > > > Battery Packs Quantities
> > > > Bronze $1750/kWh <9 per year
> > > > Silver $1500/kWh 10-39 per year
> > > > Gold $1250/kWh 40++ per year
> > > > Partner $1100/kWh 100++ per year, Sole Supplier
> > > > Cable Connectors
> > > > Weatherproof 500 Amp interconnect $118 per #CRVINT500
> > > > Weatherproof 500 Amp to DC Bus $175 per #CRVDCB500
> > > > Weatherproof Com Harness interconnect $45 per #CRVCAB900
> > > > Weatherproof Com Harness End $85 per #CRVCAB990
> > > > Fuses TBD
> > > > Pack Controller (if required) TBD #CRVPCT111
> > > > Array Controller (if Required) TBD #CRVART111
> > > > Remote Communications**
> > > > Hardware $1500 #CRVRMT111
> > > > Service Fee $98/month
> > > > **Required for extended 100% warranty coverage, waived in lease.
> > > > Corvus Energy LTD. reserves the right to change the pricing structure,
> > > this document is to serve as a
> > > > guideline only. Please refer to your contract for final pricing.
> > > >
> > > >
> > > >
> > > > ________________________________
> > > > From: Skip von Niederinghausen <farharbour@>
> > > > To: electricboats@yahoogroups.com
> > > > Sent: Thursday, April 19, 2012 1:14 PM
> > > > Subject: Re: [Electric Boats] CorvUs not Corvis
> > > >
> > > >
> > > > Â
> > > > So they could not give you a price for one or two modules?
> > > >
> > > >
> > > > On Thu, Apr 19, 2012 at 1:02 PM, Michael Mccomb <mccomb.michael@>
> > > wrote:
> > > >
> > > >
> > > > >Â
> > > > >http://www.corvus-energy.com/energy_module.htmlÂ
> > > > >
> > > > >
> > > > >
> > > > >nice looking module
> > > >
> > > >
> > > > --
> > > > "One should always remember that it is Bruce Wayne who is theÂ
> > > fictional character, a myth, hiding in a mask of normality, Batman is
> > > real"
> > > > From a conversation with a French friend
> > > >
> > >
> > >
> > >
> >
> >
> >
> > --
> > *"One should always remember that it is Bruce Wayne who is the fictional
> > character, a myth, hiding in a mask of normality, Batman is real"
> > From a conversation with a French friend***
> >
>
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