Post by: ferrari_rulz_02 on March 18, 2005, 02:57:00 AM
can you tell us what the number of the cap (on the mobo) is, so i knwo what one it was?
great idea
Post by: tutyet on March 18, 2005, 05:12:00 AM
so just to make sure we are on the same page, this is for softmodded xboxs right?
you may of just found a gap in the market, then again the whole point of softmodding is not to open the xbox!
but still great idea, i think i will try it!
Post by: ferrari_rulz_02 on March 18, 2005, 05:48:00 AM
Post by: minnow on March 18, 2005, 01:28:00 PM
So I'm assuming that the battery charges itself when the XBOX is on? Great work, again.
Post by: garyopa on March 18, 2005, 04:04:00 PM
BUT, TWO PROBLEMS:
1: The XBOX clock will still die after 4 days.
The power used by the mainboard, will kill the battery in less than 4 days,
after the voltage level drops due to it being drained the clock will still stop
running.
2: Overcharged battery if XBOX not off.
There is no CHARGing circuit in the XBOX to monitor the battery level,
so if you leave the XBOX ON and RUNNING for days at a time, you will
pickle the battery due to OVERcharging the cells.
Post by: Chancer on March 18, 2005, 04:20:00 PM
The clock never re-sets if you leave the plug in the power outlet.
Post by: ChInEsE ChIcKeN on March 18, 2005, 05:06:00 PM
Post by: ferrari_rulz_02 on March 18, 2005, 10:46:00 PM
Post by: xman954 on March 19, 2005, 01:15:00 AM
QUOTE(RARusk @ Mar 19 2005, 01:30 AM)
"well all it neads is a charging circuit, and then it will do what you want it to"
YES a 220-750 ohm resistor and 2.5V zener or reference diode
but seeing how the orignal cap is ONLY rated for 2.5v
maybe just limiting the charging current with a resistor
in series with the red wire is OK
(voltage drop will small in the backup mode and, the larger the resistor the longer it will take to recharge if the source is not current limited)
you need to do some testing on this...
BTW; nice job...and let us know
Post by: Chon_Lee on March 19, 2005, 01:44:00 AM
QUOTE(RARusk @ Mar 19 2005, 07:30 AM)
"can you tell us what the number of the cap (on the mobo) is, so i knwo what one it was?
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Title: Battery Hack Success
Post by: jesistehsux on March 19, 2005, 02:41:00 AM
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Post by: jesistehsux on March 19, 2005, 02:41:00 AM
QUOTE(Chon_Lee @ Mar 19 2005, 09:44 AM)
He has said that the box is unmodded up until now.... I am assuming that the mod that he is talking of now is the battery... therfore the sntp stuff will not work... standard xbox dashboard without live use does not support sntp. sorry.
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Title: Battery Hack Success
Post by: ferrari_rulz_02 on March 19, 2005, 03:30:00 AM
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Post by: ferrari_rulz_02 on March 19, 2005, 03:30:00 AM
QUOTE(xman954 @ Mar 19 2005, 06:21 PM)
YES a 220-750 ohm resistor and 2.5V zener or reference diode
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Title: Battery Hack Success
Post by: RARusk on April 02, 2005, 11:59:00 PM
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I recently took apart my Xbox to take close-up pictures of the motherboard for additional study and check up on the battery. The battery is just fine and is doing it's job very well.
I found the necessary RGB video and sync signals off of one of my PS2's motherboards. I did this to get around using sync chips and avoid the Component Video Forceback feature when you try to watch a movie in RGB Analog. I decided to study my Xbox motherboard to see where I could do the same. it would be very newsworthy if I could pull off the same stunt on the Xbox.
Because of all of the hacking I've been doing to my PS2 I haven't really been looking around for a charging circuit that can compliment my battery hack. I will probably try to Google some up later as I finish my PS2 work.
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Title: Battery Hack Success
Post by: ferrari_rulz_02 on April 14, 2005, 04:04:00 AM
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Post by: RARusk on April 02, 2005, 11:59:00 PM
I found the necessary RGB video and sync signals off of one of my PS2's motherboards. I did this to get around using sync chips and avoid the Component Video Forceback feature when you try to watch a movie in RGB Analog. I decided to study my Xbox motherboard to see where I could do the same. it would be very newsworthy if I could pull off the same stunt on the Xbox.
Because of all of the hacking I've been doing to my PS2 I haven't really been looking around for a charging circuit that can compliment my battery hack. I will probably try to Google some up later as I finish my PS2 work.
Post by: ferrari_rulz_02 on April 14, 2005, 04:04:00 AM
QUOTE(RARusk @ Apr 3 2005, 05:05 PM)
I will probably try to Google some up later as I finish my PS2 work.
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Title: Battery Hack Success
Post by: TKramka on April 21, 2005, 07:48:00 PM
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Title: Battery Hack Success
Post by: TKramka on April 21, 2005, 08:18:00 PM
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Just whipped up a charging circuit, but I still can't find an applicable battery.
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Title: Battery Hack Success
Post by: ferrari_rulz_02 on April 22, 2005, 07:52:00 AM
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Post by: TKramka on April 21, 2005, 07:48:00 PM
Post by: TKramka on April 21, 2005, 08:18:00 PM
Post by: ferrari_rulz_02 on April 22, 2005, 07:52:00 AM
QUOTE(TKramka @ Apr 22 2005, 12:24 PM)
Just whipped up a charging circuit, but I still can't find an applicable battery.
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Title: Battery Hack Success
Post by: TKramka on April 22, 2005, 08:09:00 AM
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Title: Battery Hack Success
Post by: ferrari_rulz_02 on April 22, 2005, 08:11:00 AM
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Post by: TKramka on April 22, 2005, 08:09:00 AM
Post by: ferrari_rulz_02 on April 22, 2005, 08:11:00 AM
QUOTE(TKramka @ Apr 23 2005, 12:15 AM)
Sure, off to M$ paint...
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Title: Battery Hack Success
Post by: Chancer on April 22, 2005, 10:25:00 AM
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The battery shown is not 2.5v. Its 2.4v. You can buy them at CPC CHS etc in the UK. Its the back up battery used in a Ferguson FV55 VCR
adding aresistor in series and a Zener is not a charging circuit either. All you are doing is reducing the charging current. If the zener is added as reference diode and the charging voltage exceeds the threshold voltage for the zener the zener will go short circuit.
To work correctly you need more than to limit current to the battery. you need a way of monitoring the charged state of the battery and cutting off the charge current when the battery is at capacity.
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Title: Battery Hack Success
Post by: TKramka on April 22, 2005, 03:09:00 PM
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AS soon as I work out the bugs, I'll post a scematic, and no, the circuit is not just a Zener diode and a resistor, however in some XBoxes that are on for exfended periods of time, a resistor would be nice.
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Title: Battery Hack Success
Post by: Chancer on April 22, 2005, 04:12:00 PM
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Good man. It sounded like that was going to be it but obviously you are doing it the correct way. Stick the pics up whenever and if you want the mod hosting i will stick it on my site for you if you want to do a little how to. Your name will be credited to the work
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Title: Battery Hack Success
Post by: TKramka on April 22, 2005, 06:09:00 PM
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And the correct battery voltage and where it came from. I'll post some pics as I work on this.
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Title: Battery Hack Success
Post by: ferrari_rulz_02 on April 23, 2005, 04:41:00 AM
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Post by: Chancer on April 22, 2005, 10:25:00 AM
QUOTE
I can't find a 2.5v
The battery shown is not 2.5v. Its 2.4v. You can buy them at CPC CHS etc in the UK. Its the back up battery used in a Ferguson FV55 VCR
adding aresistor in series and a Zener is not a charging circuit either. All you are doing is reducing the charging current. If the zener is added as reference diode and the charging voltage exceeds the threshold voltage for the zener the zener will go short circuit.
To work correctly you need more than to limit current to the battery. you need a way of monitoring the charged state of the battery and cutting off the charge current when the battery is at capacity.
Post by: TKramka on April 22, 2005, 03:09:00 PM
Post by: Chancer on April 22, 2005, 04:12:00 PM
QUOTE
and no, the circuit is not just a Zener diode and a resistor,
Good man. It sounded like that was going to be it but obviously you are doing it the correct way. Stick the pics up whenever and if you want the mod hosting i will stick it on my site for you if you want to do a little how to. Your name will be credited to the work
Post by: TKramka on April 22, 2005, 06:09:00 PM
And the correct battery voltage and where it came from. I'll post some pics as I work on this.
Post by: ferrari_rulz_02 on April 23, 2005, 04:41:00 AM
QUOTE(Chancer @ Apr 23 2005, 08:18 AM)
Good man. It sounded like that was going to be it but obviously you are doing it the correct way. Stick the pics up whenever and if you want the mod hosting i will stick it on my site for you if you want to do a little how to. Your name will be credited to the work
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Title: Battery Hack Success
Post by: Chancer on April 23, 2005, 04:56:00 AM
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And that has what to do with the actual design of it or me hosting the pics and stuff.
keep quiet
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Title: Battery Hack Success
Post by: ferrari_rulz_02 on April 23, 2005, 05:05:00 AM
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Post by: Chancer on April 23, 2005, 04:56:00 AM
QUOTE
didnt u read his post that he said he got a charging circuit working or nearly working?
And that has what to do with the actual design of it or me hosting the pics and stuff.
keep quiet
Post by: ferrari_rulz_02 on April 23, 2005, 05:05:00 AM
QUOTE(Chancer @ Apr 23 2005, 09:02 PM)
And that has what to do with the actual design of it or me hosting the pics and stuff.
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Title: Battery Hack Success
Post by: Chancer on April 23, 2005, 05:21:00 AM
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where is your constructive help (criticism or other) other than saying "that would be a good idea" or commenting on if I read his reply when i clearly did. all you have is waffle.
Keep Quiet
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Title: Battery Hack Success
Post by: ferrari_rulz_02 on April 23, 2005, 05:37:00 AM
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Post by: Chancer on April 23, 2005, 05:21:00 AM
QUOTE
know it all asshole
where is your constructive help (criticism or other) other than saying "that would be a good idea" or commenting on if I read his reply when i clearly did. all you have is waffle.
Keep Quiet
Post by: ferrari_rulz_02 on April 23, 2005, 05:37:00 AM
QUOTE(Chancer @ Apr 23 2005, 09:27 PM)
I read his reply when i clearly did.
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Title: Battery Hack Success
Post by: TKramka on April 23, 2005, 07:26:00 AM
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), plus there are things that could be done better, my experience in the past tells me that if I made it in 3 days, there is something that could be improved. Plus I'd like to wait until my laptop comes back from Compaq (right now I'm using a PII, ugh!), it has Photoshop on it, and I could draw a better blueprint / take pictures. But don't worry, as soon as it get back, I'll draw a rough blueprint for people to tweak or whatever. Today I'm consulting with my friend who is an electrician, it's kind of a joint effort between us.
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Title: Battery Hack Success
Post by: TKramka on April 23, 2005, 07:31:00 AM
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Hmm, anyone think I should make it variable voltage? Its do-able with a switch and some more parts, but harder to make. Ex, 2.4v or 3.0v for those who use 2 AAA batts in series and those who use the VCR battery, why anyone would put a battery in a VCR boggles my mind (RTC?).
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Title: Battery Hack Success
Post by: ferrari_rulz_02 on April 23, 2005, 07:38:00 AM
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Post by: TKramka on April 23, 2005, 07:26:00 AM
), plus there are things that could be done better, my experience in the past tells me that if I made it in 3 days, there is something that could be improved. Plus I'd like to wait until my laptop comes back from Compaq (right now I'm using a PII, ugh!), it has Photoshop on it, and I could draw a better blueprint / take pictures. But don't worry, as soon as it get back, I'll draw a rough blueprint for people to tweak or whatever. Today I'm consulting with my friend who is an electrician, it's kind of a joint effort between us.
Post by: TKramka on April 23, 2005, 07:31:00 AM
Post by: ferrari_rulz_02 on April 23, 2005, 07:38:00 AM
QUOTE(TKramka @ Apr 23 2005, 11:37 PM)
Hmm, anyone think I should make it variable voltage? Its do-able with a switch and some more parts, but harder to make. Ex, 2.4v or 3.0v for those who use 2 AAA batts in series and those who use the VCR battery, why anyone would put a battery in a VCR boggles my mind (RTC?).
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Title: Battery Hack Success
Post by: TKramka on April 23, 2005, 07:51:00 AM
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I'll post what I've got on Monday when my laptop comes back, like I said, I'm useing a PII laptop (Micron Trek 2) and I'm ripping my brains out just waiting for it to load the next page.
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Title: Battery Hack Success
Post by: ferrari_rulz_02 on April 23, 2005, 08:09:00 AM
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Post by: TKramka on April 23, 2005, 07:51:00 AM
Post by: ferrari_rulz_02 on April 23, 2005, 08:09:00 AM
QUOTE(TKramka @ Apr 23 2005, 11:57 PM)
I'll post what I've got on Monday when my laptop comes back, like I said, I'm useing a PII laptop (Micron Trek 2) and I'm ripping my brains out just waiting for it to load the next page.
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Title: Battery Hack Success
Post by: Chancer on April 23, 2005, 10:23:00 AM
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It backs up the clock and the tuning. They even used to use nicads to back up the tuning on the old Philips CTX TV sets. VCR s did not always have auto clock etc you know.
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Title: Battery Hack Success
Post by: xman954 on April 23, 2005, 12:20:00 PM
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some reading material
http://www.untouchab...-cad-charge.htm
http://www.lsss.home.../BATTERIES.html
http://www.repairfaq...NICDBATTERY_008
data sheets
http://www.national....s/LM/LM3647.pdf
http://rocky.digikey...LT1510-5CGN.pdf
for LI+ batterys
http://pdfserv.maxim...600-MAX8601.pdf
but at the end of the day
a voltage limited current source (trickle charge) would work just fine...
1 it's not going in a rocket ship
2 it's a $2 battery pack
3 the load is very small (<50uA)
4 the time in stanby is short compared to time pluged in
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Title: Battery Hack Success
Post by: INSB_GLOCK on April 30, 2005, 12:05:00 PM
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i kno this may sound a tad retarded lol but check this. along time ago i used to rip old portable jukeboxes apart for parts. and the jukeboxes run off batteries and power. so i kinda wondered how would the jukebox run if it had batteries in it. and a ac power supply to it. well i figured that out by the plastic plugin where u insert the plug into the unit. it has a small button inside with 2 red wires sticking out. that told the unit that when the power cables plugged in. it would not run from batteries. maybe for those feeling adventurous can do that. when the power plug is pulled the ticker in the plug will pull the battery online till its plugged back in. idunno just a idea:P
Post by: Chancer on April 23, 2005, 10:23:00 AM
QUOTE
why anyone would put a battery in a VCR boggles my mind (RTC?).
It backs up the clock and the tuning. They even used to use nicads to back up the tuning on the old Philips CTX TV sets. VCR s did not always have auto clock etc you know.
Post by: xman954 on April 23, 2005, 12:20:00 PM
http://www.untouchab...-cad-charge.htm
http://www.lsss.home.../BATTERIES.html
http://www.repairfaq...NICDBATTERY_008
data sheets
http://www.national....s/LM/LM3647.pdf
http://rocky.digikey...LT1510-5CGN.pdf
for LI+ batterys
http://pdfserv.maxim...600-MAX8601.pdf
but at the end of the day
a voltage limited current source (trickle charge) would work just fine...
1 it's not going in a rocket ship
2 it's a $2 battery pack
3 the load is very small (<50uA)
4 the time in stanby is short compared to time pluged in
Post by: INSB_GLOCK on April 30, 2005, 12:05:00 PM