I have lost track of which number FF I am on, and which color is which number. But I have noticed two things about my two current devices (my red, which is from August, and my silver, which is from November)...both have the following odd behavior:
1. When a battery drains in the FF, it throws a red light for a few seconds, and then the red light goes out. Toggling on and off will not produce any light...the FF must be connected to AC to get a light.
2. On a fresh charge,
every single time, the first hit causes a false red light. EG, mid-first hit, red light comes on, heat shuts down. Toggle off/on, green comes back, rest of battery charge is normal. This happens with both devices, every time I take the first hit on a fresh charge, irrespective of battery. I think EDA has experienced something similar.
I've also noticed my two most used batteries have about half of their original lives...I maybe get 15 long hits, tops, from each. I still have three new ones unopened, but being a cheap bastard I've been trying to avoid breaking them out while I use up my old ones. The pain of constant draining is just about to eclipse my tight-fistedness.
I don't know if the weird light behavior presages catastrophic failure. My last silver completely died after a few weeks of odd light issues...so I fully expect one or both if these to fail sooner rather than later. I hope I'm wrong...the Silver is only 8 weeks old.