APC Back-UPS BE850G2-GR battery problem or not?

[Robert_Dev]

I bought the BE850G2-GR in november 2021. It always worked perfectly. Because of some changes in my meter cupboard, I have disconnected the UPS for about a month. Last week, I wanted to reconnect it, but when I power it on, the Power on/off LED flashes red and Battery status LED flashes green in quick
succession. Also, there is a constant tone.

In the manual, I have read that this means the battery is disconnected. However, the battery is connected properly. I tried ordering a new battery. It arrived todat, I connected it, but unfortunately the same thing happens: power on/off LED flashes red and battery status LED flashes green in quick
succession. The constant tone is there as well.

Anybody has an idea what could be wrong? It would be a shame if the UPC is broken after only 2,5 years. Thanks in advance!

[Teken]

Assuming the new battery is 100% SOC. You may consider doing a Brain Dead reset as outlined in these two links.

Follow the steps that relate to your specific model:

https://www.apc.com/us/en/faqs/FA156611/

https://www.apc.com/us/en/faqs/FA158947/

Let me know what you see and observe once the brain dead rest has been completed.

NOTE: It’s important to remember that the battery installation date be updated in the APC Power Chute Software prior to doing this step! ☝️