Well there is a small difference between mobile and portable. And not everyone defines qrp as a portable radio set with battery. To me qrp means just low power operations. Nothing else.theres the elecraft radios they have battery power. as do the icom 705 and the xicom 2501 - i dont understand why mobile radios dont have internal batteries. "buy our radios they have radio parts but no, you have to finish the soldering and put a battery seporatly." its wierd when you think of it; they market a radio for QRP and then dont put a battery or areial in the package.