Lenovo E14 not working on charger works on battery

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • koby058
    Badcaps Veteran
    • Jan 2017
    • 387
    • israel
    #1

    Lenovo E14 not working on charger works on battery

    Hello.

    I have this laptop Lenovo E14 AMD

    when connecting type c power, the amp meter shows 20v, for a second it goes up to 0.5 amp and then back to 0.27amp

    the laptop works on battery.

    pushing 12v on PL3 make PU6 get hot, when removed PU6 and pushing 12v no power is pulled by MOBO

    Resistance on PU6 pin 2 is 4ohm

    Any advise how to continue ? do you think replacing pu6 will make it work?

    attached schematic

    Attached Files
    Tags: None
    • Mugi
      Member
      • Feb 2022
      • 13
      • uk
      #2
      Hello KOby058.

      How did you fix the above issue ?

        Comment

        • Mugi
          Member
          • Feb 2022
          • 13
          • uk
          #3
          The charger is fine and the charger port also is fine. The USB amp meter it showing 19v with 02A. the laptop works with battery power but not main charger .
          Same problem us koby058

            Comment

            • REpairAT
              Senior Member
              • Nov 2020
              • 143
              • Austria
              #4
              Just fixed exactly this fault. Replace UT5, NX20P5090UK
              ​Let me know if it worked.
              2 Photos

                Comment

                Previous template Next

                Related Topics

                Collapse
                • Document Archive
                  ISL88739AHRZ ISL88739 Laptop Battery Charger Datasheet
                  by Document Archive
                  The ISL88739 & ISL88739AHRZ are a highly versatile combo battery charger
                  configurable for operating as either a Hybrid Power Boost (HPB)
                  charger or a Narrow VDC (NVDC) charger, supporting 2-, 3-, or
                  4-cell batteries. Both configurations allow the battery to work with
                  the adapter together to supply the system load when it exceeds
                  the adapter capability, referred to as system Turbo mode. HPB
                  charger configuration reverse-boosts battery energy to the system
                  bus to help the adapter provide the system power in Turbo mode.
                  NVDC charger configuration...
                  11-05-2024, 03:28 PM
                • Document Archive
                  ISL6257HRZ ISL6257HRZ-T Laptop Battery Charger Datasheet
                  by Document Archive
                  ISL6257HRZ ISL6257HRZ-T Laptop Battery Charger Datasheet

                  Highly Integrated Narrow VDC Battery Charger for Notebook Computers

                  The ISL6257HRZ ISL6257HRZ-T is a highly integrated battery charger controller
                  for Li-Ion/Li-Ion polymer batteries. ISL6257 is designed for
                  Narrow VDC applications where the system power source is
                  either the battery pack or the regulated output of the charger.
                  This makes the max voltage to the system equal to the max
                  battery voltage instead of the max adapter voltage. Operating
                  at lower system voltage can improve...
                  11-05-2024, 04:43 PM
                • ferah831208
                  Strange battery present behaviour in Lenovo Legion 5-15ARH05 mb model nm-d041
                  by ferah831208
                  Hello guys, i need help with this problem, I have a NM-D041 mobo, it came with low impedance in 3v linear regulator rail, the cause was a damaged EC controller ITE8227e-192. I ordered a new one and replaced it. This laptop have a different chip for keyboard management and it8227e pins for programming ITE chips are not accesible through keyboard interface, I flashed it using i2c interface pins with vertyanov programmer because laptop was dead and SPI flash didn't have power (only 3v EC) so it couldn't access firmware stored in SPI memory. I read SPI and extracted it8227 firmware from original BIOS...
                  03-18-2025, 01:18 AM
                • flat-earther
                  how to prevent a connected charger from draining battery when not charging?
                  by flat-earther
                  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...
                  08-07-2025, 01:04 PM
                • coasterghost
                  Lenovo T14 Gen 2 Type 20XK Model 20XK0069US Odd Charging Issues
                  by coasterghost
                  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
                • Loading...
                • No more items.
                Working...