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Expert
Posts: 230
Registered: ‎02-03-2016
Message 1 of 16 (820 Views)

Charging the X3000 during recording

Has anyone checked whether it is possible to

 

- start the X3000 recording... the battery runs down a bit

- apply USB power

- the battery recharges

- remove USB power

- the battery discharges

- reapply USB power

- the battery recharges

 

On the 1000V which I have this doesn't work. It starts to use USB power only if it is connected up already when recording is started.

 

I am planning on using the X3000 in an application where it is recording for say 10hrs but where external power may be intermittent.

Expert
Posts: 879
Registered: ‎11-02-2015
Message 2 of 16 (801 Views)

Re: Charging the X3000 during recording

[ Edited ]

If I decide to perform this test, would written proof be enough, or do you require detailed video documentation (in which case I wouldn't do it)?

 

EDIT: For the written proof - it works. The camera will charge (indicated by the "power plug"-icon beneath the battery bar WHICH IS NOT MENTIONED IN THE MANUAL!!!). 

You can hot-plug the cable during the camera is on/recording.

 

I am using the EC technology 22400mAh power bank https://www.amazon.co.uk/EC-Technology-22400mAh-Flashlight-Smartphones/dp/B00GBTX1S2/ref=sr_1_fkmr0_... and I use port with 2A output.

Expert
Posts: 230
Registered: ‎02-03-2016
Message 3 of 16 (795 Views)

Re: Charging the X3000 during recording

That's great - many thanks.

Expert
Posts: 879
Registered: ‎11-02-2015
Message 4 of 16 (792 Views)

Re: Charging the X3000 during recording

You're welcome Peter Smiley Happy
Expert
Posts: 230
Registered: ‎02-03-2016
Message 5 of 16 (631 Views)

Re: Charging the X3000 during recording

I have just re-tested the X1000V camera in this situation and confirm my earlier result that it will draw external power during recording but will not charge the battery during recording.

 

So if e.g. you start a recording with the battery half charged, and run it for say 10hrs, then remove the power cable, the battery will still be half charged. Actually less than half... interestingly!

 

It is not a test one can do quickly. Merely seeing the battery icon disappear during the recording (when the power cable is connected) doesn't mean the battery is being charged!

 

It is interesting that they fixed this on the X3000, because it requires a more powerful power supply to be built-in.

 

The X1000V draws 0.46A from USB in most "running" states. This would have been chosen to enable it to be powered from standard old USB. Any higher current - e.g. the ability to charge the battery during recording - needs the assumption of a computer with USB3 - or a USB charger.

 

Can anyone confirm what USB current the X3000 draws during recording, with the battery partially discharged?

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Expert
Posts: 879
Registered: ‎11-02-2015
Message 6 of 16 (614 Views)

Re: Charging the X3000 during recording

I sadly don't own a device to measure the Amps.
Expert
Posts: 230
Registered: ‎02-03-2016
Message 7 of 16 (243 Views)

Re: Charging the X3000 during recording

I am finding that the X3000 will eventually run the battery down when it is recording, even if external power is connected.

 

I am recording in 4K 30FPS and it is drawing 0.47A which is clearly not enough to support 4K recording.

 

In MP4 60FPS it is also drawing 0.47A and in that mode you can power it externally during recording for a lot longer but still the battery runs out.

 

There is another mode in which the X3000 draws 0.87A, and it draws it even when not recording, but I have not been able to establish how one gets it into that mode. I can reproduce it, and it is achieved by using a specific intelligent USB charging adaptor, but the charger I am using already uses the TPS2511 which implements all the various USB charging negotiation protocols up to 2A.

 

I am using a 5.25V power supply so the old problem with the X1000 where you need more than about 5.1V when the camera is turned on is avoided.

 

I wish Sony got someone who knows this product to comment...

Expert
Posts: 230
Registered: ‎02-03-2016
Message 8 of 16 (223 Views)

Re: Charging the X3000 during recording

I have done more tests and have found this:

 

The X3000 does record while using external power, without apparently running down the battery, and it does that even in the top 4K mode, BUT only if the battery was more or less fully charged to start with.

 

If the battery was showing say 1/4 capacity then the camera never recovers and always shuts down, even though the battery never showed zero, and did show the external power symbol.

 

My guess is that the charging circuit puts extra current into a battery which is low, and it doesn't have enough power to do that, as well as power the camera.

 

On the last test, I ran the camera in 4K recording for 30 minutes from the (previously fully charged) battery only, and only then connected external power. That still worked.

 

Also the old X1000 issue of it needing 5.1V or more seems to have been fixed. It runs OK at 4.9V for example.

Expert
Posts: 230
Registered: ‎02-03-2016
Message 9 of 16 (214 Views)

Re: Charging the X3000 during recording

There is another thing which was different in the X1000:

 

For the X3000 to work properly from external power, it needs a USB power unit which is capable of negotiating 2A (two amps).

 

Many don't do that. Many small ones do the basic 0.5A and some do the USB3 basic value of 0.9A. Some do 1A. Most of the better quality multi-output ones, say $20+, do 2A on at least some ports.

 

If the X3000 is unable to negotiate 2A at the beginning, it runs its battery down and eventually stops. This is even though the actual current draw seems to be 0.85A max.

Expert
Posts: 230
Registered: ‎02-03-2016
Message 10 of 16 (202 Views)

Re: Charging the X3000 during recording

A further data point:

 

If you have been running the X3000 for many hours recording, from external power, when you disconnect external power, the battery level indicator will be pure fiction. It doesn't get updated correctly (or at all) while on external power.

 

I have just had the camera recording for 9hrs (4K) and when I disconnected the external power, it was showing just one bar short of full, but the camera died in 10 minutes.

 

That recording started with the battery fully charged (charged with the camera OFF) so clearly there was some battery drain taking place during those 9hrs with external power.

 

This tends to suggest that there is a limit to how long external power can be used. I will do more tests... It may be marginal i.e. a problem only if you are writing at 4K 100mbps.

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