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Is it safe to use multiple portable power stations at the same time?
Old 7th July 2020
Gear Head
Granny Nakajima's Avatar

Is it safe to use multiple portable power stations at the same time?

Hi, I'm building a small PA system using a portable power station.
One portable power station is enough for all the equipment now,
but as the system expands in the future, more power from the portable power station may be needed.
In that case, I might add another portable power station.

If I add another power station to my PA system,
There will be multiple power supplies in one system. Is this not a problem?

For example, is it possible to use this way?

* I use powerstation A for guitar and bass amps.
* I use powerstation B for the main speakers.
* I use powerstation C for monitor speakers.

I think it is necessary to connect the ground of each device.
(As an example, microphone and guitar amp.)
If the ground is not shared, electric shock due to the potential difference between the equipment may occur.
With that in mind, can I use them without problems?

I asked this question in another thread but didn't get an answer.
I hope this thread will give me a good answer.
Portable power station + Class D equipment = Portable PA System?
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