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820-3536 detecting battery but not charging
- Thread starter mskzo
- Start date
"with the battery disconnected"
What do you expect to get, if battery is not enabled???
Please, don't waste time with irrelevant checkings.
R7050 is required to enable the battery.
What do you expect to get, if battery is not enabled???
Please, don't waste time with irrelevant checkings.
R7050 is required to enable the battery.
Are you sure this battery is really good?
- My initial problem was a short on the P3V42_G3H.
- I injected 2.V 500mA on P3V42_G3H and the short gone (very quickly).
- I worked normally with the computer and the battery was charging normally.
- After Some days the short on P3V42_G3H returned.
- I injected 2V 500mA on the P3V42_G3H (during the operation i accidentally inverted the polarity) and the short gone again.
- After some visual inspection with a microscope i found some corrosion near C5007 and replaced it.
- The computer booted but without charging the battery.
- I checked at the system information and i have information about the battery, cycles, percentage, etc.
- I tested the battery in aonther computer and was ok.
- Yesterday the R7020 burned.
- I replaced it and now its working again without charging the battery.
RIght now i don't have another computer to test the battery again. Is there any other alternative (for example removing Q7155) to test the battery?
- I injected 2.V 500mA on P3V42_G3H and the short gone (very quickly).
- I worked normally with the computer and the battery was charging normally.
- After Some days the short on P3V42_G3H returned.
- I injected 2V 500mA on the P3V42_G3H (during the operation i accidentally inverted the polarity) and the short gone again.
- After some visual inspection with a microscope i found some corrosion near C5007 and replaced it.
- The computer booted but without charging the battery.
- I checked at the system information and i have information about the battery, cycles, percentage, etc.
- I tested the battery in aonther computer and was ok.
- Yesterday the R7020 burned.
- I replaced it and now its working again without charging the battery.
RIght now i don't have another computer to test the battery again. Is there any other alternative (for example removing Q7155) to test the battery?
If R7050 makes good contact with battery, then you may get battery voltage at J7050; before Q7155.
As already explained, you should be sure the battery is good, or not.
Battery alone, making short between SYSDETL and GND (pure short is OK, no 10K resistor needed), must give the actual voltage between pins PWR and GND.
As already explained, you should be sure the battery is good, or not.
Battery alone, making short between SYSDETL and GND (pure short is OK, no 10K resistor needed), must give the actual voltage between pins PWR and GND.
- Bad battery... I measured 0 V both methods. (making a short and directly on the J7050.)
- On the Battery pcb circuit (under the sticker) i measured 12V. it seems that the battery circuit is not ok.
I will order a new battery today.
Can a problem on logic board cause a battery failure?
- On the Battery pcb circuit (under the sticker) i measured 12V. it seems that the battery circuit is not ok.
I will order a new battery today.
Can a problem on logic board cause a battery failure?