I have troubles powering JeeNode4 from battery. I have 2 JN setup with blinking leds on packet receive. When I power both of them from USB-BUB, they work like a charm.
When I disconnect one of them and connect to battery, it works erratically on close range (10-50 sm) and never work on a distance more than a meter.
I tried different batteries: 2xAA, 3xAA, 9V battery, even 10V NiHM pack. They all produce constant 3.29V on RFM12 VCC and VDD. But no communication at all.
What else can I check?