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Technology Stocks : ULBI..Ultralife Batteries -- Ignore unavailable to you. Want to Upgrade?

To: David Maginnis who wrote (440)	3/12/2000 6:33:00 PM
From: Dennis Roth	Respond to of 522

>> Dennis, how did the size and weight of Electrofuel's battery compare to Ultralife's? << Electrofuel's 2100mAh weighs 65 grams according to their handout sheet. I was unable to determine the weight of the Ultralife battery. It wasn't printed on the package card. All I can tell you is that both Ultralife batteries, the 750mAh model and the 2300mAh model, "felt" lighter than the Nokia 900mAh NiMH battery in the hand. The exhibit floor was the size of eight football fields and the Electrofuel and Ultralife exhibits were about 1,000 feet apart so there was no opportunity to hold both in my hand at the same time. I think Ultralife has the better connections for retail distribution of their aftermarket batteries than Electrofuel. >>Did you get enough info to determine energy density and number of recharge capacity? << The Electrofuel handout claims 470 Wh/litre and 190 Wh/kg but that must be just for the cells because when you multiply 2100mAh by 3.6 nominal voltage you get 7.56 Watt-hours and when you divide that by 65 grams you get 116 Wh/kg not the 190 wh/kg claimed on the handout. The Ultralife cards showed a table of talk time and standby time in cellphones which is likely more meaningful to consumers than energy density numbers. I don't have an Ultralife spec sheet and I didn't take notes of all the specs listed on the display card. The rated number of recharge cycles is an important number and I don't have them for either the Electrosource or Ultralife products. >> Was there any talk on Valence? I.E. do they have a real product or is it all smoke? << No talk of Valence, but then the theme of show was wireless data not batteries. The Qualcomm battery was displayed along with Qualcomm satellite phone but the battery was only identified as Li-ion not Li-ion Polymer. The Qualcomm satellite phone battery is LiPoly and Valence is making cells for many of them. There may have been other products with Valence cells inside but none were identified as such. Many companies selling cell phone batteries had slim Li-ion models but only Ultralife and Electrofuel were showing Li-ion batteries clearly identified as Li-ion Polymer. While some products may have had Valence inside, none were marked or marketed that way. As far as I know, Valence isn't trying to sell aftermarket batteries under their own label and the OEMs they sell to put their own name, not Valences's, on the product.