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Thread: Xtar PB2 circuitry upgrades/changes?

  1. #1

    Default Xtar PB2 circuitry upgrades/changes?

    I have owned two of the original PB2 units in the past that both failed in under two years. The first one stopped charging my phone after charging for about 2 seconds. It would just stop and act like it wasn’t plugged in. The second one recently stopped working too though differently. This one also won’t charge but has a burning smell and the LED numbers are flashing chaotically. I am afraid to even try to use it as a battery charger. I tried different batteries and cords all of which work fine in other applications.

    I really love these things when they work and want another one. Do these newer ones (PB2s) have different/upgraded circuitry? They display more information than the old ones which only showed relative battery charge percentage and weren’t very accurate at that.

    I also see that there is a PB2c also and I am not sure the difference.

  2. #2
    Join Date
    Jul 2016
    Bergen, Norway

    Default Re: Xtar PB2 circuitry upgrades/changes?

    You could always consider PB2S?
    It’s physically larger, but will also do 21700-cells, which is very nice to have, IMHO.

  3. #3

    Default Re: Xtar PB2 circuitry upgrades/changes?

    I saw you posted it in different threads. Hope this product comparison can help you.

    Comparing PB2C, PB2 and PB2S

    Color Options Blue and Orange Black, Red, Blue, Orange Black, Red, Yellow, Blue
    Size of Power Bank L110mmxW51mmxH24.3mm L110mmxW51mmxH24mm L125mmxW58mmxH28mm
    Cosmetic Smooth Matte Matte
    Battery Compatibility Protected or Unprotected 18650 batteries Unprotected 18650 batteries only Unprotected 18650 18700 20700 21700 and Protected 18650s
    Charging Input Type USB-C Micro-USB USB-C
    Battery Indicator 4 Indicator LEDS Battery Indicator displayed in Percentage (%) Numerical display
    Input 5V 2.1A 5V 2.1A QC3.0 & PD3.0 (5V 2A / 9V 2A / 12V 1.5A)
    Charging current 2AX1/ 1AX2 2AX1/ 1AX2 2Ax2 2Ax1 1Ax2
    USB output 5V 2.1A 5V 2.1A QC3.0 & PD3.0 (5V 2A / 9V 2A / 12V 1.5A)
    End-of Charge Voltage 4.20 ± 0.05V 4.20 ± 0.05V 4.20 ± 0.05V
    End-of Charge Current ≤180mA ≤150mA ≤120mA

  4. #4
    Flashaholic* lion504's Avatar
    Join Date
    Feb 2016

    Default Re: Xtar PB2 circuitry upgrades/changes?

    Any alternatives to the PB series?
    “Experts” are wrong about half the time. [My_Lights]

  5. #5
    *Flashaholic* ChrisGarrett's Avatar
    Join Date
    Feb 2012
    Miami, Florida

    Default Re: Xtar PB2 circuitry upgrades/changes?

    Quote Originally Posted by lion504 View Post
    Any alternatives to the PB series?
    Just their traditional dedicated chargers with USB out, which there are many.

    I ordered and PB2S off of Ebay, but it's on a slow boat from China, so probably two more weeks.

    Ordered/received two Samsung 50E 21700s for it, just to test things out.

    I'm good on this stuff, but I had to shop 'til I dropped, once my Trump Bux arrived, lol.

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