unknownprc: DAB-P9 pocket radio: Carry handle and battery charging

Since I had the radio opened for analysis, I took no chances of wasting time trying to attach the carry handle into the tiny "U" aperture of the cabinet, and therefore I have just put the handle thread loop into its allocated position in the cabinet corner before setting the back cover in its place.

The battery indicator had two bars out of three when I got the radio new in the box. 

After closing the back cover it was time to do some more relaxed listening to my FM favorite stations and see if my inside analysis job did not break the radio. 

After some hours of listening, the battery indicator was flashing and empty. 

I plugged a USB AC charger using the supplied USB cable and I left it charging in the power off state for around 4 hours. Initially the charging indicator blue LED was lit and then went off after the charge was alleged complete.

I suspect the current consumption is on the heavy side when using the built-in speaker, as after a couple of hours of listening at moderate level, the battery is again with only two bars. I still have to use it on earphones but it is expected to have a longer battery life as the load is much lower.

Either that or else the 1000mAh battery is on the weak side; maybe it just needs a few discharge/charge cycles to get its full performance. I reckon now that I forgot to take battery current consumption measurements, so probably that would be one of the next steps to further document this radio .

As expected, the FM reception was unaffected with RF interferences while using the USB charging

However, when sitting the radio close to my LED workbench lamp it reduces the receiver sensitivity considerably, losing quality and the RDS data is lost as well. In this respect, the double priced Sangean DT-800 is no better here, showing the same results. I see this behavior in most DSP radios.

 

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