 Battery Extenders |
 Mar 20 2006, 11:40 AM
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#1
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Group: Members Posts: 573 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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Feb 11 2007, 07:25 PM
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#2
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Group: Members Posts: 369 Joined: 6-September 04 From: Brisbane, Australia Member No.: 4,488 |
Ntw's circuit is pretty scary.
The only component in the circuit that's doing anything is the diode (the resistor only protects the LED), which drops the charging voltage to approximately 4.4V. LiIon cells explode when charged beyond 4.3V. And that's assuming it's plugged into a properly regulated USB port giving 5V. A cheap AC-to-USB charging adapter might be putting out more than that. I'd build a simple charger from a LiIon charger IC (say Maxim's nifty looking MAX1555, I really must order some samples) which would be almost as simple as Ntw's circuit, safer, and you get a "battery full" indicator into the bargain! 
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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 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 pelrun It's really a bad idea to do this yourself, un... Jun 5 2007, 05:58 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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