I “standardized” 15V as my shack and portable voltage, because
- It’s usually within the tolerated voltage range of my trx’es
- I can run and charge all devices using a 15V USB-C PD adapter using off-the-shelf USB chargers and powerbanks
- My 6.6Ah LiFePo is able to reach 100% SOC (14.6V) when applying 15V without additional circuits thanks to its internal charge controller
- This is pretty much the upper tolerated limit
This reduces complexity in the shack quite a bit.