12" G4 Battery won't charge

The ring will briefly turn orange sometimes, but always goes green within a minute or so.
Steven Fisher wrote on :
Battery is obviously detected, but won't charge. Two different power adapters. The ring will briefly turn orange sometimes, but always goes green within a minute or so. I've tried resetting the power manager. Any other ideas? Any way to isolate the PowerBook vs. the battery short of buying another battery (or, worse, another PowerBook)?
John Johnson replied on :

In article steve-E4E8D7.16034918052007@redacted.invalid, Steven Fisher steve@redacted.invalid wrote:

Battery is obviously detected, but won't charge. Two different power adapters. The ring will briefly turn orange sometimes, but always goes green within a minute or so. I've tried resetting the power manager. Any other ideas? Any way to isolate the PowerBook vs. the battery short of buying another battery (or, worse, another PowerBook)?

How old's the battery, and how often do you discharge it (estimate full discharges, partial discharges sum to a full discharge linearly; that is, 3x1/3 discharges = 1 full discharge)?

nospam replied on :

In article steve-E4E8D7.16034918052007@redacted.invalid, Steven Fisher steve@redacted.invalid wrote:

Battery is obviously detected, but won't charge. Two different power adapters. The ring will briefly turn orange sometimes, but always goes green within a minute or so. I've tried resetting the power manager. Any other ideas? Any way to isolate the PowerBook vs. the battery short of buying another battery (or, worse, another PowerBook)?

that sounds like the battery is no good.

try that battery in a different powerbook as well as a new battery in your powerbook.

Steven Fisher replied on :

In article null-F86002.23171518052007@redacted.invalid, John Johnson null@redacted.invalid wrote:

How old's the battery, and how often do you discharge it (estimate full discharges, partial discharges sum to a full discharge linearly; that is, 3x1/3 discharges = 1 full discharge)?

Battery has 40% of original capacity, which is obviously terrible... cycled 209 times according to coconutBattery. I'm pretty sure the battery is garbage, I'm just surprised it can't recharge at all.

Maybe I should let it discharge a little and then try to recharge it. The percentage it's stuck at right now may be a maximum, rather than just what it was when the charging stopped working.

Steven Fisher replied on :

In article steve-38BA7D.22423818052007@redacted.invalid, Steven Fisher steve@redacted.invalid wrote:

Maybe I should let it discharge a little and then try to recharge it. The percentage it's stuck at right now may be a maximum, rather than just what it was when the charging stopped working.

It looks like this is the ticket. I can discharge it to 33%, then stick the AC back in. It'll charge to 35% and then stop charging again.

nospam replied on :

In article steve-D6B947.22442918052007@redacted.invalid, Steven Fisher steve@redacted.invalid wrote:

In article steve-38BA7D.22423818052007@redacted.invalid, Steven Fisher steve@redacted.invalid wrote:

Maybe I should let it discharge a little and then try to recharge it. The percentage it's stuck at right now may be a maximum, rather than just what it was when the charging stopped working.

It looks like this is the ticket. I can discharge it to 33%, then stick the AC back in. It'll charge to 35% and then stop charging again.

that sounds like one (or more) of the internal cells has failed, preventing it from fully charging. another symptom of a failed cell is the computer suddenly shuts off despite the battery having a reasonable amount of charge left.

Steven Fisher replied on :

In article 180520072251040923%nospam@redacted.invalid, nospam nospam@redacted.invalid wrote:

that sounds like one (or more) of the internal cells has failed, preventing it from fully charging. another symptom of a failed cell is the computer suddenly shuts off despite the battery having a reasonable amount of charge left.

Had that happen a few weeks ago but didn't think much of it. Good. If it just the battery I'm completely happy.