Tue, May 5, 2020 7:54 PM

SimpliSafe Camera USB outlet instead of plug


I've just installed a second SimpliSafe camera outside my garage. I actually joined two cables together (indoor and outdoor) because the outdoor alone wasn't quite long enough.

My question is around powering the camera. The plug (UK) is 5v and 1.5amps. I have a USB port on a plug which is 5V 3amps. The camera runs perfectly but will there be any issue running it long-term on this plug, or will it just draw 1.5amps instead of the maximum of 3?

Thanks for your help,


52 Messages

Il y a 2 y

I've been running one of my cameras directly off a USB plug (that I have in some of my wall outlets) instead of using the wall adapter and have had no issues.

also- FWIW, I've been told (but am no expert) any time you attach two (or more) cables you run risk of additional resistance and possible issues.

21 Messages

Eek! I guess we'll find out!!

217 Messages

Il y a 2 y

You'll be fine.  I've measured the current draw, and it's a maximum of 0.360 Amps.  That happens during active viewing in darkness (so the IR illuminator turns on).   At that current draw, you likely won't have any problem with both cables put together.  Test it:  If the camera works fine in all ways, you're good.



2.2K Messages

Il y a 2 y

The 3A rating is the MAXIMUM it an provide.  Actual draw is controlled by what you plug in.  In fact, it is a "law" (Ohms).

I (current) = E (voltage) / R (resistance)  = 5v / R  So the smaller the resistance (impedance) of the device, the greater the current draw.

21 Messages

Il y a 2 y

Thank you, everyone. I've had it running from the USB for 3 days and it's absolutely fine. Joined cable seems equally fine!