[PSUBS-MAILIST] RE: [PSUBS-MAILIST] Valence U-Charge® Li-ion Power System

In this case, More is not less.

http://findarticles.com/p/articles/mi_m3012/is_2_185/ai_n12937463

http://www.accessmylibrary.com/coms2/summary_0286-27906934_ITM

"• In February 2004, we also introduced a prototype of the U-Charge® Power System family of large-format products. The U-Charge® Power System is in production in our China facilities and is designed to power a variety of motive applications from hybrid and electric vehicles to scooters and wheelchairs, and can also be used in stationary applications.

• In January 2006, we announced availability of eight new models of our large-format lithium phosphate U-Charge® XP Power System batteries which feature built in battery management electronics and power rates of 500 to 1700 continuous watts, depending on the model.

As part of our low-cost manufacturing strategy, we have successfully transitioned our powder manufacturing from Las Vegas, Nevada to Suzhou, China. This transition allows us to capitalize on lower manufacturing costs. Our research and development efforts are focused on the design of new products utilizing our lithium phosphate chemistry, the scale-up of our second generation lithium phosphate technology, the development of different cell constructions to optimize power and size for new applications, as well as developing future materials based on the lithium phosphate technology attributes.

Our business headquarters is located in Austin, Texas, our research and development centers is in Las Vegas, Nevada, our European sales is in Mallusk, Northern Ireland and our manufacturing and product development centers is in Suzhou, China. "

Source http://google.brand.edgar-online.com/EFX_dll/EDGARpro.dll?FetchFilingHTML1?SessionID=3o4NWLqKkI9wYN0&ID=5357427-70165-89855

Regards,
Brent Hartwig

From: brenthartwig@hotmail.com
To: personal_submersibles@psubs.org
Subject: [PSUBS-MAILIST] Valence U-Charge® Li-ion Power System
Date: Mon, 31 Dec 2007 17:47:42 -0800

Hey Submadmen, Look at what I'm getting you guys for New Years. :)'

It appears I wasn't watching Valence as closely as I should of. There now producing full sized Phoshate Li-ion batteries in the same basic sizes that lead acid are produced. I've been waiting for this for years.

http://www.valence.com/products/ucharge_overview.html

"Providing Greater Performance, Safety and Reliability
Traditionally, the motive industry has relied on Lead-acid batteries to power devices such as wheelchairs, scooters, electric bikes, marine vehicles and more because Lead-acid was the only choice. The Valence Lithium Phosphate U-ChargeÂ® Power System Family is changing that! Today, the U-ChargeÂ® system is conveniently packaged in standard Lead-acid sizes ideally suited for a variety of motive applications. Valence Lithium Phosphate U-ChargeÂ® systems combine superior performance, safety and reliability offering consumers advanced technology over current Lead-acid battery solutions.

Superior Performance Over Lead-Acid Batteries:

33% lighter with twice the run-time
Longer shelf life and faster recharge time
Smart battery monitoring and internal cell balancing
No Lead-acid leaks

Lower Overall Cost Of Ownership

Intrinsic phosphate safety that protects against abusive situations.
Environmentally friendly, no heavy metals or disposal issues.
High energy efficiency with no memory effect.
Lower lifetime costs due to low maintenance and high cycle life.

Technology Comparison

U24 U-Charge®
System Performance Standard
Lead-acid Technology Improvement

Operating Voltage 12.8V 12V 6% higher

Capacity (Ah@ C/2) 100 45.6 2.2X

Nominal Energy (Wh) 1280 528 2.4X

Dimensions Group 24 Group 24 Equivalent

Nominal Weight (kg) 15.8 24.5 35% lighter"

Regards,

Brent Hartwig