I am planning on taking my equipment for higher bands out to some SOTA summits when the nights get lighter. I would normally operate my radio from a 4s LiPo with a bridge rectifier configured as the dropper.
For the higher bands I also need approx. 28v for the amplifier and TX/RX relay.
(the amp works from 12-32 v, but the relay is 28v ).
Should I get another pack the same as my current one (Turnigy Graphene Professional 10000mAh 4S) and put them in series to achieve the required higher voltage, tapping from one to get the 12v as usual, or would I be better sourcing an 8s LiPo and having separate supplies for the radio and amp?
Any other suggestions for a better, but not complicated, solution?