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u/Cute-Tie9428

Final Update: My power bank is a safety hazard, but Baseus wants me to pay $50 for a replacement.
▲ 2 r/BaseusGlobal+1 crossposts

Final Update: My power bank is a safety hazard, but Baseus wants me to pay $50 for a replacement.

Following up on my previous post: https://www.reddit.com/r/BaseusGlobal/comments/1sza1eb/baseus_adaman_65w_power_bank_hardware_failure/

Baseus support (Hamy) officially acknowledged my unit has a "possible hardware/battery-related fault" and told me to "stop using it immediately for safety".

However, because I don't have the original invoice, their only solution is a $10 coupon, effectively asking me to spend $50 extra to buy a different model because the one I have is out of stock.

It’s very disappointing that a confirmed safety risk is handled as a sales opportunity instead of a responsibility. I expected more from Baseus regarding user safety.

u/Cute-Tie9428 — 4 days ago
▲ 2 r/BaseusGlobal+1 crossposts

Hi everyone,

I’m struggling with a Baseus Adaman 65W power bank that suffered a surge. I’ve performed some deep testing with a multimeter, and the behavior is very specific. I need help identifying if the board is likely dead.

The Symptoms:

  • Voltage Spike & Reset Loop: When I connect either the original Baseus charger or an original Xiaomi charger, I measured the voltage at the B+/B- terminals. It doesn't happen instantly; it climbs steadily for a few seconds until it hits 18V-20V, at which point the unit resets.
  • Screen Behavior: During the loop, the screen turns on but shows "0" with no "IN" or "OUT" icons lit up. Then it acts as if the cable was unplugged and restarts the cycle indefinitely.
  • The "Ghost" Charge Cycle: If I leave it plugged in for a long time, it eventually seems to stabilize and performs what looks like a normal charging cycle. It takes about 6 to 8 hours to reach "100%" on the display.
  • Total Blackout Unplugged: Despite showing 100% while plugged in, the moment I disconnect the cable, the device is completely dead. No display, no response to the power button, and no output. It's like the board can't "see" or draw power from the cells at all.
  • Back to Zero: If I plug it back in after it supposedly reached 100%, it goes through the reset loop again and eventually shows 0% again. It's not holding or recognizing any of the "charged" energy.

Technical Context:

  • I’ve verified the NTC (thermistor) wires; they seem physically intact.
  • The cells have residual voltage, but the board forces that massive 20V spike during the "charging" phase, which shouldn't happen with standard lithium cells.
  • It seems to be creating a fake charging UI without actually routing or storing current in the batteries.

The Question: Has anyone encountered this "Ghost Charging" behavior where the UI progresses but the hardware remains disconnected from the battery? Given that it won't even turn on unplugged, is it safe to assume the power management on the board is toast?

I have spare 20,000mAh cells ready for a transplant, but I don't want to waste them if the board is a lost cause.

Any insights are appreciated!

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u/Cute-Tie9428 — 15 days ago