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Home Forums 68kMLA Help - PowerBook G3 Lombard replacement battery issues — #6
Post #6 by coius
Source Forum68kMLA
CategoryTroubleshooting
Post DateFri, 27 May 2011 - 03:38
Original URLhttps://68kmla.org/bb/threads/help-powerbook-g3-lombard-replacement-battery-issues.23114/
Post
The battery is in good physical conditions, and yes I did clean the contacts on them. There's nothing wrong physically with the battery, but it does put out power, but the power dies very shortly. As far as I can tell, I think the power manager in it is dead or partially working. Might have been a power surge when putting the battery together that caused it. However, like I said, it's brand new, not NOS, and I am sure their testing went about as far as pushing the button on the end of the battery and seeing if it lights.

I already informed the seller, but since it's probably after business hours, I will have to wait till tomorrow to get a reply from the business.

btw, in apple batteries, someone found out that if you run the battery down (which is what I tried with this) and short out the battery, it causes all power to be pulled from the intelligent circuits inside because the battery loops back to the cells. starving the power manager would cause it to reset, and set to zero. Once you put it in the laptop, it would then reboot the power manager. Not all batteries are set up, but I did it to a battery on a pismo I once had, and a battery that gave 30 seconds jumped to 4 hours when I did it and worked between 3-4 hours after I tried it and worked all the way like that up to the day I sold the laptop.

I am not sure if this works like it, but I wasn't getting sparks, and I know it's depleted mostly out of power because when I tried it (you don't bridge it more than quickly touch it) it would then not start the laptop from power off. So something is reset, but the second I put it on, the lights come on for a second (like it did when I first got the laptop) and then turn off and go back to it charging and then getting 3-4 minutes.

There's some defect, and bridging those didn't do anything. but it is a known trick. you just gotta get the power down to where the cells have little to no power left (btw, of all places I seem to recall seeing it on macforums where the guy did it on both a pismo and an iBook G3 clamshell battery)

Either way, it's going back. and it's doing it in the same condition that I got it in, I didn't damage anything.

mp.ls