Hello, everyone, I am new to posting, so if I mess up, I apologize.
I have a vanquish 540 and been using it for about 4 months, then I purchased the RNB 6000 battery pack in Feb 9 2021 for the 540 everything was working just fine until yesterday ( Sunday 03/14/21 ) while in the field hunting I hear a beep and the machine is off, I turn it back on and and it shuts back down in about 10 seconds, every time I turned the detector back on the run time would get shorter and shorter until it would not stay on. I checked the voltage on the battery pack and it was only 2 volts, but when the detector was on it showed full charge, I replaced the battery pack with the batteries that came with the detector and the detector worked like a charm, long story short, I recharged the battery pack, then did a voltage check and it only showed 4.77 volts, and 8 hours later 4.07 volts, I would think it should be around 6 volts at fully charged ? I just wanted to see if anyone on the forum had the RNB 6000 and if they have experienced anything like this ? Thanks