while pluged in it shows only green light and the laptop cant start but it on for a while then turns off and repate this.but if i pluged in a charge battery it starts fine and runs ok but still cant charge battery.i have change with new battery and charger alsoo but still same.i have also change charging ic near battery connector but still same.any ideas
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Re: macbook pro A1728 cant charge battery
logic board code ? -
Re: macbook pro A1728 cant charge battery
Dear with me MacBook Pro A1502 EMC:2835 820-4924-A, problem give me x mark on battery, i replaced isl6259AHRTZ, R7120 0.02ohm, on one point gives me 15.94 and othere on 15.98 volt on battery jack 123pin 11.5 from battery and 4,5, 3.4v and pin 6 0.026 up and down... pls. help me out ........Comment
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Re: macbook pro A1728 cant charge battery
chnage battery charging icComment
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Re: macbook pro A1728 cant charge battery
Changed!!!!!!!!!!!!!!!!!!!!!!!!!!!! but same problemComment
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Re: macbook pro A1728 cant charge battery
did anybody face this problem before......i also changed charging ic isl6259 three times but still same......with charger it wont turns on but keep on restarting but with a charged battery it turns on runs fine but shows not charging and charger light remains green....i changed magasafe also used ogignal also changed battery also but still same thingComment
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Re: macbook pro A1728 cant charge battery
sori for wrong model in post its a A1278 and mobo coad is 820-2936-AComment
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Re: macbook pro A1728 cant charge battery
Did you try another power brick?Comment
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Re: macbook pro A1728 cant charge battery
u mean adapter?Comment
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Re: macbook pro A1728 cant charge battery
voltage on f7040 without battery ?Comment
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Re: macbook pro A1728 cant charge battery
the fuse near battery connector?Comment
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Re: macbook pro A1728 cant charge battery
yes
voltage on q7055Comment
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Re: macbook pro A1728 cant charge battery
on fuse 12v but volts are going to 0v and again coming to 12v after every 2 secondsComment
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Re: macbook pro A1728 cant charge battery
voltage q7030 q7035 q7055Comment
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Re: macbook pro A1728 cant charge battery
Check first volage on ISL62... pin3!!
And check and change the 2 Black smd cap. near the Battery status connector !!Last edited by tata123; 11-10-2015, 07:58 AM.Comment
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Re: macbook pro A1728 cant charge battery
did any body solve this issue beforeComment
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Re: macbook pro A1728 cant charge battery
Seems like something is trying to turn on and when that 12 volt device is not turned on or recognized as being turned on it then recycles. So there is a program loop that it is stuck in for what ever reason. If this was the intent of the programmer or the program is at fault.Comment
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Re: macbook pro A1728 cant charge battery
i search badcaps and found that so many people post this problem with this same model but no solution yetComment
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Re: macbook pro A1728 cant charge battery
I have not seem one with the symptoms of the 12 volts rise to12 Volts and falling to 0 volts repeating. What post is that in ?Comment
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I bought a Vostro 3400 motherboard (LA-K033P) to upgrade over my damaged Inspiron 5593 (LA-J091P) board. Everything else is ok except for the battery. This battery I am using now is already a replacement one since I disposed of the bloated original one. Back in the Inspiron 5593 motherboard, the battery charges fine and is identified just fine. However, with the upgraded motherboard, suddenly the replacement battery is labeled as "Not a dell battery". When I borrow a similar battery from my colleague (which did not have replacements yet), it is identified and charges just fine.
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Hello,
it's not a laptop/desktop related question but I figured that someone here will have the right knowledge.
At work we use a few Aldebaran(now Softbank/United Robotics group) Nao Robots which they use some custom 6S li-on battery packs.
Nao robots tends to draw from the battery even if they are shut down, and the BMS tends to be a little aggresive, if the pack stays on a turned off robot for 3 months it's gonna lock and will refuse to charge.
Now, I have noticed a few things.
The "dead" battery, while connected to charger and NOT Charging will... -
Hi
Acer A515-43
LA-H801P
Fail: Does not charge battery, has low voltaje on connector.
Laptop didn't want to turn on, only charge led blinked.
I found PQB5 (mosfet high battery charger) in short, voltaje in +12.6V_BATT was 19 v ...
I changed it, changed PQB6 too and now battery charger voltage is 4.4V but battery is 3 cell, 11.25v, then is very low to charging.
Laptop turns on without battery and works fine, but with battery turns on and turns off inmediately, I suspect battery bad but I don't know... -
Hello All,
I have a unusual problem with a MacBook Air 2014 820-3437 that it will not charge the battery. I have 2 batteries that charge just fine in another 820-3437 so i assume that the batteries themselves are OK. One was new in 2020.
This board started off as a PP3v3_S5 short that was resolved (shorted capacitor) and came to life fine. While testing the computer I noticed that the battery was not charging so I checked the following components:
Current sensing:
R7121 10 ohm
R7122 10 ohm
R7151 2.2 ohm
R7152 0 ohm
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Hello, I have a MacBook Air M1 that got water on it and now the computer does not charge the battery. The USB C port does work since I can connect the computer to HDMI for example. The battery also works well since if I connect a motherboard from another MacBook Air M1, the battery charges.
Anyone know what can it be?06-18-2024, 11:28 AM
Comment