#94 another mini ups review
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.
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
Datasheet can be found here.
Andowl artical can be found here.
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.
Sounds good.
I bought this one https://www.takealot.com/fibre-wifi-router-backup-power-dc-mini-ups-8800mah/PLID71640434
but it keeps switching off when the power comes back on, very annoying. Any idea why or what I can do ot keep it on?
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.
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.
Thanks, will take a look
I bought a new Jiageng mini dc ups 8800mah. Problem is it runs well, but shut down after 8 hours without using it to back up my router. Please advise.
I bought a new Jiageng 8800mah ups. It is working perfectly but shut down after 8- 10 hours without backing up my router
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.
I leave it on. No power outage and after a couple of hours it switches of automatically.
Sounds like it’s not charging the batteries. It should be connected to mains permanently. I would contact the seller with a fault.
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?
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.