 Battery Extenders |
OESF Portables Forum > Everything Else > Archived Forums > Zaurus General Forums > General Support and Discussion > Accessories
 Mar 20 2006, 11:40 AM
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#1
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Group: Members Posts: 572 Joined: 8-June 05 Member No.: 7,295  |
http://www.solware.co.uk/psp/psp-battery.shtml
I SWEAR that would just detonate the PSP battery. . .. |
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Jun 5 2007, 05:58 AM
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#2
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Group: Members Posts: 366 Joined: 6-September 04 From: Brisbane, Australia Member No.: 4,488 |
It's really a bad idea to do this yourself, unless you've got some electronics experience. You definitely can't do it without a few IC's designed for the task.
You could actually get away with charging a single cell or a parallel array of cells with just a big current limiting resistor, but it's still a really bad idea. You definitely can't do it to a series array, which is what you're considering to get the 5v the Z needs. If you were to use a parallel array, it would need a step-up converter to get from ~3v to 5v, and that's at least another IC and an annoying-to-procure inductor, with layout and filtering rules that make my brain hurt. Sadly, the resistor is how the 9800mah packs are wired - mine broke and I needed to open it up to effect repairs. I'll probably replace the charging circuit with a dedicated IC in mine at some point (but retain the stepup converter, because of the aforementioned brain hurt.) |
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Posts in this topic
Ferret-Simpson Battery Extenders Mar 20 2006, 11:40 AM
Ferret-Simpson http://www.consolesandgadgets.co.uk/catalo...atter... Mar 20 2006, 11:48 AM rrnwexec 7200 mAh
or stated another way... enough to power... Mar 20 2006, 02:46 PM Da_Blitz
http://www.consolesandgadgets.co.uk/catalo...atte... Mar 23 2006, 04:53 AM
jpmatrix QUOTE(Da_Blitz @ Mar 23 2006, 02:53 PM)
http:... Mar 24 2006, 04:25 AM rrnwexec QUOTE(Da_Blitz @ Mar 23 2006, 02:53 PM)http:/... Mar 24 2006, 08:00 AM macemoneta I use this with my Sl-5500:
http://cgi.ebay.com/w... Mar 26 2006, 07:35 AM Curious Aardvark the first unit is actually an 1800 battery with a ... Mar 28 2006, 02:12 AM ntw1103 I am using a custom battery pack that I made.
bat... Jan 8 2007, 09:57 PM daniel3000 QUOTE(ntw1103 @ Jan 9 2007, 07:57 AM)I am usi... Jan 9 2007, 12:00 AM Ling I am using the Joytech PSP Power Extender. I got m... Jan 11 2007, 06:26 PM Jon_J I know this is more expensive, as most all things ... Jan 11 2007, 07:29 PM ntw1103 I will post the diagram as soon as I make one. Jan 11 2007, 07:35 PM speculatrix Brando have a good range of PSP power accessories:... Jan 12 2007, 01:46 AM ntw1103 Okay, here is the diagram for my battery.
This is ... Feb 9 2007, 07:03 PM speculatrix QUOTE(ntw1103 @ Feb 10 2007, 04:03 AM)Okay, h... Feb 10 2007, 12:45 PM pelrun Ntw's circuit is pretty scary.
The only compo... Feb 11 2007, 07:25 PM Da_Blitz i am assuming nicads here, if so then the charging... Feb 13 2007, 09:30 PM jpmatrix hi here
i've just found and bought the Etitech... Apr 30 2007, 04:53 AM Capn_Fish I'm looking at building a battery extender for... Jun 3 2007, 02:41 PM speculatrix QUOTE(Capn_Fish @ Jun 3 2007, 11:41 PM)I... Jun 4 2007, 02:15 PM Capn_Fish QUOTE(speculatrix @ Jun 4 2007, 05:15 PM)QUOT... Jun 4 2007, 02:52 PM speculatrix you have to have an intelligent charging circuit f... Jun 5 2007, 03:45 AM laan Purchased this one today:
http://www.portablepowe... Jan 14 2008, 04:11 AM speculatrix QUOTE(laan @ Jan 14 2008, 12:11 PM) http:... Jan 14 2008, 04:48 AM laan QUOTE(laan @ Jan 14 2008, 01:11 PM) Purch... Jan 14 2008, 11:15 AM tanjian2 I've had a Zap Universal Power supply (blew up... Jan 15 2008, 01:55 AM jpmatrix QUOTE(laan @ Jan 14 2008, 01:11 PM) Purch... Jan 15 2008, 04:48 AM Capn_Fish Something like this:
http://www.sparkfun.com/comm... Jul 14 2008, 07:56 PM xamindar I am looking for a battery extender that I can plu... May 11 2010, 05:19 PM koan I've been using a Sanyo Eneloop KBC-L2 for som... May 12 2010, 01:36 AM xamindar Thanks for the recommendations. I didn't know ... May 12 2010, 02:54 AM xamindar Well, got it. It works but gets really hot. It end... May 26 2010, 05:08 PM koan QUOTE(xamindar @ May 27 2010, 11:08 AM) W... May 27 2010, 04:56 AM |
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