Another thing - I noticed a self discharge of my battery. After 1 or 2 weeks without using the battery was completely discharged, means dead. No reaction of the device. Do anyone have the same behaviour?
Just checked my sds7102 after about 10 days of inactivity, battery indicator is half, I remember that last time was charged, but
i'm not sure 100%. Probably it will not be used in the near future, so I'll check next week.
aghp or rf-loop is it possible to measure battery voltage without dismantling the instrument?
Fabio.
With power off, battery installed.
There is some power consumption.
Example it keep 2.5V reference powered and also some other small things.
Battery indicator do not show capacity left. It is, I tink so, very simple voltage indicator and this we know it is far away linear if think capacity.
So If battery indicator is just dropped around half, it do not mean that half capacity is discharged.
Personally I do not like that power unit is "active" if scope is shut off.
If battery is fully discharged, inside battery electronics shut off battery terminal so that it can only take current but can not give out. This is for disable deep discharge)
I have not measured battery discharge current when scope is shut off.
But example Vref (2.5V) looks like take something near 6mA. Alone this means 1.4Ah @ 10 day.
This and some other small consumption and also Li self discharge may explain some amount of what you have seen on battery indicator just also as it it not linear for Ah or Wh capacity)
This time I do not know what is total consumption!
But this need littlebit more study. I now have a hurry and therefore did not have the opportunity to do it well enough. I will try delegate this to some other person who is not so busy.