Hardware failure

General Discussion
1

Hello, I’d like to ask for your help. The voltage regulator on my WatchMon CORE 4.5 has broken. I can’t replace it because it’s been covered with black paint or plastic, and I can’t find the part number. Could you please provide the chip code? It’s a simple problem to fix, but identifying the component is impossible.

watchmon core v4.5 failure
watchmon core v4.5 failure1080×1920 238 KB

I hope you can help me. I have a 24kWh lithium-ion battery without a BMS. It’s urgent; I don’t want to burn myself down over a €5 regulator.

2

Hi Antonio,

We see this happen when the input voltage is higher than the rated 30V.

Please reach out via info@batrium.com so that we can see what we can do to help you out!

Cheers,
James

3

Hello again, I’ve configured everything, the K9s are working, and I haven’t tested the expansion card yet, but I’m getting a red LED on the ShuntMon 500A. Is this faulty, or is there any way to revive it?

Thanks.

4

Hi Antonio

If you are getting a red light, it’s at least getting power, but it sounds like communications are not working. Have you modified the shunt cable we supply at all?

Could you send a photo of your shunt wiring?

5

Hi James
I haven’t modified the cable. I’ve checked for continuity between the ends and that the terminals are the same color.
I also disconnected the yellow and green data cables and connected the shunt, and the red light started flashing; it’s no longer solid.
Then I reconnected the data terminals, and the red light is now flashing, but the green light isn’t on, and WatchMon CORE 4.5 doesn’t recognize it.
In the application, when I connect it, it says “timeout,” and when I disconnect it, it says “idle.”
The thing is, the red LED is flashing, and the documentation says that means it’s not dead. The cables are original and have been tested with continuity and by powering the shunt without data.
That’s all I know. Oh, and the expansion board is also working perfectly; only the shunt is giving me problems now.

Regards.

6

Hi James, could you give me a hand here?

Thanks

7

Hi Antonio,

Can you post photos of your shunt wiring, and a screenshot of your Hardware > Shunt page when you have the shunt connected? Do you see the TX and RX counters increase?

Other than that, your shunt may just be damaged from the power supply failure in the WatchMon :frowning: