#94 another mini ups review

Nice honest stats compared to others.

Looking at other mini ups manufactures I decided to give Jiageng a go. The outer plastic enclosure looks very similar to a lot of other generic mini ups devices. I suspect they all originate from the same factory but have slight improvment’s to the actual PCB inside.

Decent PCB with good amperage Inductors.

Once opened I was greeted with a beautifully soldered matt black PCB with a higher version number than the previous mini ups from Andowl.

The PCB has quality components and no mystery chips. It also has the iconic Wintonic 18650 cells.

2 differences I noticed are that all the LEDs are a dark green color (the Andowl unit had 2 different greens) and the unit powers off automatically at a low voltage so that it doesn’t require a reboot after it runs “flat”.

The unit also has flashing LEDs as apposed to the Andowl’s fading LEDs

SKE-POE430-V3.0 matt black
Main IC is the STC8H1K08

Datasheet can be found here.
Andowl artical can be found here.

17 thoughts on “JIAGENG MINI UPS”

  1. I can see what looks to be a similar miniUPS on AliExpress for slightly over $21.

    Since it is forbidden on my country for an individual to import devices with batteries, I’m hoping that the seller will be able to sell it without batteries for a lower cost.

    What do you think of replacing the battery pack with a 4-unit battery holder? That could make swapping out batteries much easier.

    1. Hi there,
      That mini UPS is very different to the one I had a look at.
      It has less USB and barrel connectors, It could be switching off because of a setting or from a fault.
      Best option would be to return it for a new one if you don’t come right.

      1. Thanks I did. Its also a Jiageng (JG-756), I just wasnt sure if this was a user error – but I guess it should just work.

        P.S. cool site, nice projects. Check out the demoscene.

    1. Hi there,
      As long as the device is on it will drain the batteries.
      There’s a push button to switch the device on/off.
      If you can see the charge indicator LEDs and the 9v-12v LED then the device is online.
      Try leave the device plugged in to charge fully, If there still is a problem, it could be a faulty unit as it should require very little maintenance.

    1. Sounds like it’s not charging the batteries. It should be connected to mains permanently. I would contact the seller with a fault.

  2. The UPS does not connect the Internet when I have power outage, just the wi-fi lights up. My service provider says that you should help with this.

    How do I get this activated?

    1. This type of UPS doesn’t have any internet capability, however it can pass through to a POE device via the LAN cable.

      If it’s not powering the WiFi router correctly check the voltage is set to the correct value.

      If there’s still issues it may be a faulty device.

  3. Hello, I bought this 8800mah unit. It works but does not switch automatically during Loadshedding. I have to turn it on myself when there’s a power outage. What could be the problem?

    1. If you power on the device while plugged in it should still have power when you unplug the mains cable.

      Could be a faulty device, maybe batteries or there’s a problem with the change over circuit.

  4. This might sound like a stupid question, but I really need advice. I bought the Jiageng 10400mAh Model JG759. The USB port charges my phone, but if I connect my router (12V) to the UPS nothing happens.

    1. HI,
      You can try change the switch on the back to 12v if you haven’t already tried that.

      If it still doesn’t work it could be a fault.

      Best is to send it back for a replacement or a refund in that case.

      You can also open the device to troubleshoot but this will void the warranty and you will need technical skills..

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