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Tourist
Posts: 5

external power

Hi,

 

I am trying to take a long (10 hour) timelapse. Obviously the battery will not last that long. So I am connecting to external power. The battery charging is unable to keep up with the power usage. What is strange to me though, is that if I REMOVE the battery, the gopro works just fine the whole day. I want to leave the battery in though, not take it out - the power might go off and I would like it to keep recording for the 10 or so minutes it is off.

 

Why, if the whole camera can run off the external power, can it not do the same if the battery is inserted? This is even with the battery starting at 100%.

 

Thanks

 

GoPro
Posts: 7,577

Re: external power

Hello @greencliff87822

 

Which external power source are you using? It could be that the rate that the external power source is charging the battery is significantly slower than the rate of consumption. Even if the battery starts with a full charge, the difference in rates will eventually take effect. Charging the battery is prioritized by the external power source, that is why it is more effective when the battery is out as power is directly supplied to the camera. It is best to use a 5V:2A external power source to charge the camera while capturing your prolonged time-lapse.

 

Thanks, 
Marius

Adventurer
Posts: 8,943

Re: external power

think the problem is not us or the external power source but the gopro itself not allowing to record while charging 

Tourist
Posts: 5

Re: external power

[ Edited ]

@fishycomics

I too suspected that after seeing that the charging indicator does not show if the gopro is recording, however testing shows that it does indeed charge - about 1 hour of recording time by battery alone, vs about 6 hours with the power connected.

 

I feel that it is a firmware issue (or possibly hardware - how the power feeds in, maybe it cannot bypass the charge circuit), where the gopro does not prioritise keeping the camera runnning over charging the battery. A secondary question is why is the charging circuit so poor that it cannot keep up with the discharge rate of the battery - I am powering it with a 2.4A supply which was the most powerful USB charger I could find - I tried a Qualcomm® Quick Charge™ 3.0 (3A) unit but it would not power the gopro at all...

 

As a user making a recording while connected to external power, I want the camera to power iself as a priority over charging the battery, so that my recording is made even if the charger cannor keep up with the drain on the battery.

 

Given that the power is connected and a recording is being made, when the battery level gets too low to power the gopro, then the gopro should switch to powering itself directly.

Tourist
Posts: 5

Re: external power

[ Edited ]

@mariustanya

Yeah, as I said in the other reply, I understand that the charger may not be able to keep up - though it should be able to with a 2.4A supply, my issue is more with the gopro not switching over to using the external supply directly if the battery is about to shut down. (Which I do realise could be an "unsolvable" hardware problem - the design of the charge circuit).

 

Tourist
Posts: 5

Re: external power

@fishycomics

 

I too suspected that after seeing that the charging indicator does not show if the gopro is recording, however testing shows that it does indeed charge - about 1 hour of recording time by battery alone, vs about 6 hours with the power connected.

 

I feel that it is a firmware issue (or possibly hardware - how the power feeds in, maybe it cannot bypass the charge circuit), where the gopro does not prioritise keeping the camera runnning over charging the battery. A secondary question is why is the charging circuit so poor that it cannot keep up with the discharge rate of the battery - I am powering it with a 2.4A supply which was the most powerful USB charger I could find - I tried a Qualcomm® Quick Charge™ 3.0 (3A) unit but it would not power the gopro at all...

 

As a user making a recording while connected to external power, I want the camera to power iself as a priority over charging the battery, so that my recording is made even if the charger cannor keep up with the drain on the battery.

 

Given that the power is connected and a recording is being made, when the battery level gets too low to power the gopro, then the gopro should switch to powering itself directly.

 

Tourist
Posts: 5

Re: external power

This forum is a bit buggy. It's deleted my "other reply". Now this thread makes very little sense, and I can't post it again it just keeps "removing it as spam".