Date: Thu, 17 Jan 2002 20:52:40 -0600 From: [EMAIL PROTECTED] Subject: Re: [LIB] Experiences...
Hi Lee I think two of them paralleled would be enough- that would be 1.2 amps- if you kept the Libretto off when charging. It might even be enough to power the Libretto and save the battery. It would be a little heavy to carry but if it is the same thickness two would only be .6 inches and would slip right in a pack. Your calculations are close but there will be some loss of current due to the power supply circuit and you won't always get 100% out of the solar panel. Figure about 25 % loss and you'd be close to what actual current is supplied. John On 17 Jan 2002, at 18:39, [EMAIL PROTECTED] wrote: > Date: Thu, 17 Jan 2002 21:32:55 EST > From: [EMAIL PROTECTED] > Subject: Re: [LIB] Experiences... > > John, > > Unisolar apparently makes a smaller unit similar to the one you talked about, > and it is being auctioned on ebay for $129 (starting price). It is flexible, > stainless steel-backed, and puts out 16.5V, 620 mA. It is one of those that > I had in mind, and sounds identical to what you found at Jade Mountain. I'm > not sure about the charging requirements of the Li-ion cells, though, and was > hoping someone had already done the experimentation (like Gerhard maybe) so I > could pick their brains and save $. As far as amperage, I think it just > translates into charging time (2400 mAh � 620 mA = 3.87 hours), but I have > zero expertise in this area. Hopefully someone else on the list does. > > Lee > > > >I have thought about it and did some checking. Jade Mountain > >(www.jademountain.com) sells a flexible solar panel which puts out > >16.5 volts at .62 amps which looked interesting. It is 21.8 x 16.7 x > >0.3 inches and rolls into a 8 inch diameter tube. It is 179 dollars > >though and I don't know whether .62 amps will be enough to charge > >the battery. The next step up is 1.94 amps which is enough but it > >is 56 inches long. Too big for packing. These are made by Uni- > >Solar. > > > > > ************************************************************** > http://libretto.basiclink.com - Libretto mailing list > http://libretto.basiclink.com/archive - Archives > http://www.picante.com/~gtaylor/portable/faq.html - FAQ > -------TO UNSUBSCRIBE------- > Reply to any of the list messages. The reply mail should be > addressed to: [EMAIL PROTECTED] - Then replace any text > on the message's subject line: cmd:unsubscribe > --------TO UNSUBSCRIBE DIGEST------ > Do above but with this on subject line: cmd:unsubscribe digest > ************************************************************** > ************************************************************** http://libretto.basiclink.com - Libretto mailing list http://libretto.basiclink.com/archive - Archives http://www.picante.com/~gtaylor/portable/faq.html - FAQ -------TO UNSUBSCRIBE------- Reply to any of the list messages. The reply mail should be addressed to: [EMAIL PROTECTED] - Then replace any text on the message's subject line: cmd:unsubscribe --------TO UNSUBSCRIBE DIGEST------ Do above but with this on subject line: cmd:unsubscribe digest **************************************************************
