You are absolutely not alone in this. I have exactly the same problem, just without a charging station. But what shocked me is how many people generally have problems with loading the mouse. Unfortunately, I no longer have a receipt for mine and the company I bought it from went bankrupt almost a year ago. Now I will probably switch to another manufacturer again.

Update (02.13.2024): After just leaving it on my desk in the off state since creating this thread, I decided to plug it in again via USB and it turned right on at 100% and seems to be working fine for right now (even via 2.4 wireless). I’m glad its working again but not super reliable at this point.

Exact same problem.  Got mine in January and it no longer charges. I’ll try the update

I haven't had any issues with it since I updated it. :)

So I’m having the same issue, bought the mouse I think about a month ago and have loved everything about it. Today I left to go check some things away from my computer, the mouse was low and blinking red but I just didn’t plug it in. Came back about 45 minutes later and the mouse will not respond, does not get recognized by the computer when plugged into any of my functioning motherboard USB ports, and is just entirely unresponsive. Wanted to try your solution before trying to RMA this, when you say “Update (02.13.2024)” do you mean firmware for razer products? I’ve never had to do that before and I just tried through the https://mysupport.razer.com/app/answers/detail/a_id/4166/~/software-and-firmware-updates-for-razer-peripherals and it won’t recognize the mouse and so it cannot update the mouse. Dongle did get recognized though.

That was the date I made the comment. I think the connection issue happens if the mouse completely dies but I could be wrong. My initial thoughts would be to plug it into the wall for now to make sure it charges up. Then uninstall the Razer apps to try to force it to recognize and reinstall what it needs with the latest versions. 

Lmao that makes more sense, IDK how I read it that way but I’ll give that a shot, appreciate it.

Same problem here.  Near as I can tell, it has never been charging on the base station and finally drew down its battery from its first charge.  If I pull up Synapse and dock it, the charge icon is shown in Synapse for a less than a minute, while the mouse glows red, then the charge icon goes away and the mouse goes back to whatever color profile I had loaded.

I have had so many problems with anything battery powered from Razer that this will be my last Razer purchase.

I haven’t had issues after I uninstalled and reinstalled. The only thing is it wont charge if my computer goes to sleep which is a bit annoying but otherwise works fine.

Contacted Razer and they have no solution besides RMA.  JFYI for those still experiencing flaky or no charging.

Ive done the latest firmware update, checked everything I could think of.  It will not charge.  So the extra money i paid for a wireless mouse is wasted as it has to be plugged in to use.

I contacted support and they immediately sent me a new base and puck with very few questions which leads me to believe they have a known quality issue. 
 

So far, it has mostly worked. It did stop charging the other day but turning off the mouse and charging via USB overnight seems to have corrected it. 
 

Typical Razer quality…

Just wanted to throw my 2cents out there.  I bought a BNIB v3 Pro.  Same exact issue from day 1.  wired or wireless charging, results in flashing red.   Wired is immediate. Wireless charges for ~5min then flashes red.  

I’ve been chasing this issue and believe I’ve found it.  It’s not hardware as many are saying.  There could be a hardware component, but I have found a reliable solution that makes me feel otherwise.  The Synapse app itself is struggling to recognize the device. If you watch the modules, sometimes it sees it, sometimes it doesn’t. 

So, If you exit the Synapse application (not disable the services) everything will work perfect. Wireless, Wired, Charging of all types. Flawless.  All my buttons/polling/etc are all saved directly on the mouse so it stays functional even without the app running. I’ve now uninstalled the app and everything is still working 100%. Settings and all.  Obvious downside, you have no battery meter and you cant change your settings.  However, you can easily open the app to make those setting changes. Then close it again.

This will be a reliable work-around until Razer updates the app to resolve the communication issue. Assuming there’s no hardware problem. But seeing as it has 0 problem with Windows Management, I'm going to assume it’s Synapse.

 This is the best workaround other than unplugging/replugging the dock