Asks EW8RH:
Recently ordered a lithium-ion battery on the aliexpress, DC12V 9800 mAh, the price of $ 26. The price includes a built-in battery charger + power supply. External battery power is convenient for small transceiver, not a small capacity, the total weight of the parcel 400 grams, which means the battery is even easier.
Who use these things to supply the radio?