I use to charge it via type c and It stopped charging , with the usb c connected i measure 5V on the pins that are going to the battery , and on the working one i can measure 9V on the pins, after opening it i found this sot23 smd marking ACA9E burnt, and i don't know what to replace it with. Some people say it can be SY8008CAAC wich is a Synchronous Step Down Regulator others say it could be voltage detector like XC6114B545MR.
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it's a 2 cell battery, so logically it's a boost convertor.
maybe next time,add a thermal pad to couple it to the metal shell -
So how can i find the right part to replace it?Comment
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not sure,
these codes are a pain in the ass to trace.
can you work out where the pins go?
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I have removed the ic from the board so i can see the traces, with the ic on the board the small smd ( i think its a diode) under the usb port on the right it was shorted but after removing the ic its not shorted anymore. I have tryed to deliver 7v on the charging port since the walkie still works on battery and i have voltage on the diode and the capacitor under the burnt ic . I have also tested with the multimeters the pins from the ic conected to the type c port pins.Comment
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I have also opened the other walkie talkie and measured the voltages on the working ic with the type c connected, i have attached it here.Attached FilesComment
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thats a great picture, i can draw a schematic from that!
btw, do these radio's still have contacts on the back of the battery for a cradle like older radio's?
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For Badcaps Readers, Please note that I am hopefully going to present this same message to Lenovo to see if they have any insight to the matter as well and figured to share the entirety here for clarification. The System is out of warranty as it is but does have the option to have it extended.
Model Information: T14 Gen 2 (Type 20XK, 20XL) Laptop (ThinkPad) - Type 20XK - Model 20XK0069US
Board: T14 Gen 2 (Type 20XK, 20XL) - Type 20XK.
System Hardware:
Processor: AMD Ryzen 7 PRO 5850U
Memory: 1x 16GB DDR4 3200 (Soldered on Board); 1x Crucial 32GB DDR4...09-08-2025, 10:46 PM -
Hello,
i have similar problem as https://www.badcaps.net/forum/showthread.php?t=37828
QUOTED
-It works on charger (without battery connected-only charger)
-It works on battery (without charger connected-only battery)
-& it also works when plugged in battery & charger, but it's not charging the battery
//Confirming, i have same issue, but problem started from charger, centre PIN is outputing 10V+ and jumping randomly 19V
and..
QUOTE
The IC cannot maintain the input current level... -
Looking for some help with this one if anybody can assist please? I have an HP Probook 470 G4 Laptop which recently started to intermittently failing to turn on, with intermittent white LED light(charging LED) by the charging port when it should have been charging and showing an orange LED instead. Definitely some sort of gradual failure. Now the laptop fails to power on at all, no charging LED, no Power Button LED either - seemingly dead.
Stripped down to the bare motherboard. The original HP battery, when disconnected from the motherboard, is reading 0.00v - possibly some sort of protection... -
I have two TCL A30 phones.
Old Phone: This phone worked fine for years, then stopped charging If you plugged a charger into it, the phone would make the charging sound, the phone would tell you it is charging, but the battery icon would not have the charging symbol in it and the battery would not charge.I tried new battery, same behavior.
New Phone: Works fine, bought as a donor board to try and repair Old Phone
My interest here is to repair Old Phone, using components parts off New Phone if needed. I am not interested in replacing Old Phone with New Phone.... -
I am trying to fix a Acer Nitro 5 AN515-57-536Q not charging issue, the laptop can boot from battery, adaptor or both. The battery LED is solid orange, but it doesn’t charge. The battery report from win11 looks normal, the acer care
report is also good for battery.
Following https://www.badcaps.net/forum/troubl...arging-circuit,- DCIN/VCC: 19.1
- ACIN/ACDET: 3v
- REGN/VDD: 6v
- CMSRC : 19v
- ACOK: 3.3v
- ACDRV: it is 19v, not 25V(when charging, the ACDRV
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