Deluxe Extra Battery Missing

[ricdiogo]

Got this email from Bookeen:

«Dear Customer,

You ordered and received a Cybook Deluxe.

Due to continuing overwhelming demand, production of Cybook batteries could not catch up and the spare battery was not included in your pack.

We will send the missing extra battery, as soon as possible, in a second shipment.

As an indication, it should ship around mid-January 2008.»

[adelheid]

Just curious, since there were reports of covers not being included in the shipments: did you get a cover?

[ricdiogo]

Yes, the black one.

[Kiari]

I also got a 'we'll send you one later' email about the extra battery.

I did get the cover and everything else though!

[Striking Claw]

I did get my cybook last week but without a cover and an extra battery. According to the notice in my package those items will be sent to me by the end of january.
I wouldn't mind the missing extra battery, but an eBook reader without a cover is another story. I would have been happy with either the Bookeen cover or the M-edge cover.
Now I have to be real carefull, so that my cybook will survive intact until I will get my cover.

[delphidb96]

Originally Posted by Striking Claw

I did get my cybook last week but without a cover and an extra battery. According to the notice in my package those items will be sent to me by the end of january.
I wouldn't mind the missing extra battery, but an eBook reader without a cover is another story. I would have been happy with either the Bookeen cover or the M-edge cover.
Now I have to be real carefull, so that my cybook will survive intact until I will get my cover.

Can anyone who has the 'spare' battery please tell me the manufacturer info?

As a recipient of an engineering sample version of the Cybook, I didn't get a 'spare'.

Derek

[kkingdon]

Originally Posted by delphidb96

Can anyone who has the 'spare' battery please tell me the manufacturer info?

Not much on my spare: Silver case with a 2-pin molex connector soldered to +/- contacts on one end. (The soldered end of the silver case is wrapped in clear yellow tape. There are two lines of printing on the case:
HECELL H503456HC
PL A366 BA 7F29

[HarryT]

I've just tried doing a Google search on that reference number, but the only hit returned is to the previous post . I'm impressed that Google has indexed it so rapidly!

[mbovenka]

Harry,

I think it's this one: http://www.hecell.com/en/product_polymer.asp, 'HXX3456'

-edit- Perhaps the 5V version ('XX' being '50' and all...)?

[delphidb96]

Originally Posted by mbovenka

Harry,

I think it's this one: http://www.hecell.com/en/product_polymer.asp, 'HXX3456'

-edit- Perhaps the 5V version ('XX' being '50' and all...)?

I'm pretty sure it is, but without a photo it's hard to tell.

I've asked them for more information as well as a retail outlet and retail pricing information, but I haven't heard back from them.

Derek

[HarryT]

A question for someone who knows more about LiIon batteries than I do (ie virtually everyone )...

Suppose my Gen3's battery dies after a couple of years. Will the replacement battery I got in my Gen3 "deluxe pack" be in any better condition than the one I've used in the machine, assuming it's just been sitting there in the box untouched for two years?

ie, do they degrade simply with time, or with charges (or both)?

[tompe]

Here you have some storage advice: http://www.powerstream.com/Storage.htm

[diabloNL]

Originally Posted by HarryT

A question for someone who knows more about LiIon batteries than I do (ie virtually everyone )...

Suppose my Gen3's battery dies after a couple of years. Will the replacement battery I got in my Gen3 "deluxe pack" be in any better condition than the one I've used in the machine, assuming it's just been sitting there in the box untouched for two years?

ie, do they degrade simply with time, or with charges (or both)?

My opinion is that it's best to fully charge a Li-Ion, store it and use it at least every three months or so to make sure you deplete it and recharge it fully ones. So the thing what you could do is to switch between the two battery's every few months. In that way you will keep them both in good condition. Storing one until the other one is dead or bad (after ~ 500 to 1000 recharges) is not a good option because your stored battery will probably be not in a very good condition anymore.

[tompe]

The web site i referred to actually disagree with this:

Moli Energy Lithium Ion Battery Storage: Storage temperature range is -20 to 60° C. Recommended storage voltage range is 4.1 to 2.0 volts per cell. For prolonged storage periods, store discharged [i.e. 2.0 to 3.0 volts per cell] and at -20° to 25° C.

Panasonic Lithium Ion Battery Storage:
The batteries should be stored at room temperature, charged to about 30 to 50% of capacity. We recommend that the batteries be charged about once per year to prevent overdischarge.

PowerStream Note: Test data confirms that storage of lithium-ion batteries is best if the cell is partially discharged. In one test by Cadex Electronics ( http://www.buchmann.ca ) after 1 year storage at 25°C the non-recoverable capacity remaining is 96% when stored at 40% initial charge level, but only 80% if stored with 100% initial charge level. This effect is reduced at lower temperature and is a non-issue at 0°C. At higher temperatures the effect is much worse. Cadex's recommendations are to store below 15° C at 40% of full charge (2.5 volts per cell).

[diabloNL]

For my work I deal with multiple devices that use Li-Ion batteries and the manufacturer/supplier recommends storage at 100% charge. Also, Cadex is talking about storing it for one year without use. I think it's still a good idea to switch between batteries to prevent any problems with storage.