the Otherpower.com Discussion Board || Comments Valence 12V Lithium (lead-acid drop-in replacement)

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Valence 12V Lithium (lead-acid drop-in replacement) | 8 comments (8 topical, editorial)

Valence 12V Lithium (3.00 / 0) (#1)
by DamonHD (d@hd.org) on Mon May 5th, 2008 at 02:21:42 AM MST
(User Info) http://www.earth.org.uk/

Thanks for correct sectioning ADMIN...

Link here to Valence: http://www.valence.com/products/ucharge_overview.html

Several times the power per unit weight and volume, and clearly intended as a drop-in replacement for lead-acid.

Rgds

Damon

Re: Valence 12V Lithium (3.00 / 0) (#2)
by PaulJ on Mon May 5th, 2008 at 08:11:59 AM MST
(User Info)

Interesting. What do they cost?

Internal cell balancing alone would remove a huge headache with sealed batteries...

Paul.

[ Parent ]

Re: Valence 12V Lithium (3.00 / 0) (#3)
by DamonHD (d@hd.org) on Mon May 5th, 2008 at 09:10:11 AM MST
(User Info) http://www.earth.org.uk/

I don't know the pricing yet for the UK, but based on a series of wild guesses I think that these might cost perhaps 3x per usable kWh as lead-acid. Bbut given how much lighter and smaller they are for a given capacity, and given the built-in protection, that might be worthwhile.

I could expand my system from enough to run my off-grid office lighting to enough to run my server and DSL modem including 2 days' reserve in the same space in a tiny corner of our kitchen. Quite a dramatic difference.

Rgds

Damon

[ Parent ]

Re: Valence 12V Lithium (3.00 / 0) (#4)
by erthlng (phil(at)newsphoto.com) on Wed May 7th, 2008 at 04:07:46 PM MST
(User Info)

I found a PDF document online from CalCars that mentioned a cost of $1200 for two Valence U-charge VU1 13.2V, 46.4 Ah Li-ion batteries.

See: http://www.calcars.org/PriusPlusComponents040826.pdf

Phil

[ Parent ]

Re: Valence 12V Lithium (3.00 / 0) (#5)
by DamonHD (d@hd.org) on Thu May 8th, 2008 at 01:39:16 AM MST
(User Info) http://www.earth.org.uk/

Hi,

That wouldn't be way out of line with what I'd seen elsewhere for US pricing, but pricing for delivery to my doorstep in London is likely to be very different.

However, since Valence's email seems cranky, and their contact page does not have a working phone number for a UK office, I'm stuck for now...

Rgds

Damon

[ Parent ]

Valence 12V Lithium (lead-acid drop-in replacement) | 8 comments (8 topical, 0 editorial)

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