Topic: Battery Hack Success (Read 120 times)

ferrari_rulz_02 · « **Reply #30 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?).

TKramka · « **Reply #31 on:** April 23, 2005, 07:51:00 AM »

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.

ferrari_rulz_02 · « **Reply #32 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.

Chancer · « **Reply #33 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.

xman954 · « **Reply #34 on:** April 23, 2005, 12:20:00 PM »

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

INSB_GLOCK · « **Reply #35 on:** April 30, 2005, 12:05:00 PM »

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

Author Topic: Battery Hack Success (Read 120 times)