I have a hp laptop that shows charging whenever i plugged in the charger but remains at zero percent. after hours of charging on removing the charger it is still at zero percent but still on until about 15 minutes of removing the charger before it shutsdown itself. pls help what can i check. I have replace the charger but problem persist.
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I have an RC radio handset(Taranis QX7) which doesn't have internal battery charger which means I had to remove the battery every time I needed to charge it.
So to improve it, I added a 15W USB-C charger board(link) inside and soldered it to the same connector on the PCB where the battery plugs into, great, now I can simply charge it with a USB-C cable.
but the problem I found is that after the radio sat for two weeks without being used the 2S 18650 battery that I'm using was at 4.2V!
So the battery is backfeeding the charger and being drained.
How can I prevent... -
Hi guys,
I have this laptop motherboard MS-16P51 ver.1.0, comes to me after water damage ( choco milk), board was in terrible condition, Ive clean it, and change bq24780s, INA 3221, mosfet (pq1) and 2 mosfets pq9 pq15. after this laptop comes back to live, unfotunately battery was dead, so I ordered new one.
Laptop works normally, but it shows charging without charger, and ofcourse it doesnt charge. Msi calibration detect battery, HELP Im out of idea !!! -
I have a macboook air a1466 that stopped charging the battery.
BAT PINS: with or without ADAPTER IN
1- GND
2- GND
3- GND
4-0V sense pin
5-3.42V
6-3.42V
7- 8.4V
8- 8.4V
9- 8.4V
AC Adapter plugged in: after a lot of of hours some times start charging
No BAT Connected- Green to Orange
AC Adapter plugged in: BAT Connected- no light
The strange thing, when I tried a mac charger usb-c with usb-c to macsafe 2 adapter works normally and charging.
Any ideas what’s wrong please?...08-05-2025, 03:43 AM -
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...
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