Add battery to PE MKBoom kit

[joeytvr]

I have the MK Boom setup working. However its rated at 50x2 at I believe 21v. Amp is rated up to 24v.
Comes with battery module of 11.1v. You can add another but only for added play time not increased voltage. Any ideas on how I could fairly easily do it?

Dayton Audio MKBoom Portable Bluetooth Speaker Kit

 

[weltersys]

You could add another 11.1v battery module in series for 22.2 volts, then use a 24 to 12volt DC to DC "Buck Converter" (DC-DC inverter, step down voltage regulator) to provide voltage appropriate for the components other than the amp.

The examples below are just to show almost any voltage in or out can be achieved for low cost.

 

[joeytvr]

Thanks, I'm just gonna have to dive in to figure out how to get the two battery boards in series. Way they are made is to run parallel only.