I got yesterday a brand new Model:DS0201. Software Ver 2.60, Lib Ver 2.55. It will not run on battery only. I have charget it several hours. Voltmeter shows 3.8 volts in cell pins. Also same voltage in connector on board when device is in off-position. Voltage drops to zero when I turn the device on. Cell voltage is still 3.8V.
There is a loose (one end) red wire inside. It connects to board near battery connector. For what use it is.
Has anyone had same experiencer. Best wishes HPu