Hello,
I have another question for you. I am designing an optional and portable magnetic pin battery pack for the U2S V4 amplifier. My question is, can I connect the magnetic pins that will receive the battery unit to the pins right behind the DC power input? If I supply power to the amplifier’s power socket at the same time, can it bypass the energy coming from the battery?
When receiving voltage from both sources simultaneously and primarily from the main DC input, will there be any issue? Will it damage the main board?
In a real case scenario:
When at home, I want to power the amplifier from the main socket, and when outside, from the battery pack. I am considering a magnetic pin design instead of an unsightly main input. Incase of forgetting the battery pack.
I have tried to draw the diagram.
I am not sure what the technical documents of Amp 4.0 amplifier’s power management circuit and specifically understand how it handles multiple power sources.
Hi Deniz,
Never and I repeat, never power the board with the power sources at the same time. It will fry your Battary board and possible burn your house down. You can use an UPS board in between.
Regards
Hah, 
no worries. How about after adding a UPS board in between? Can the amplifier handle two power sources at the same time?
Sorry for late response,
In the picture I can see that you want to use the Dayton\Wondom battery board. Is that right…?
The amp can run from the battery board while charging. you won’t have to worry than. maybe a switch for not draining the batteries. Only downside is that if your powerbrick is rated at 24v, there will only get 12v to the amp (less volume). You didn’t mention any specs.
regards,
Jordy
I have a similar battery module from the brand Wodom with 5 18650 cells. My wiring is slightly different. I connected the DC power supply to the input for charging the battery and to the input for powering the amplifier (I also have the AMP V4). I installed switches to prevent the battery output from connecting to its input. Several times, I forgot to activate these switches during charging, and everything worked correctly. The battery module’s safety systems seem effective. The only issue I’ve had is limited battery life. I think a module is needed to boost the battery output voltage so that it doesn’t drop below the amplifier’s power supply voltage
