Digi PKG-R (PKGR) radio modems are well suited for operating on battery power, operating on several low power options. The modems can be powered from solar panels and gel cell batteries or even alkaline or lithium batteries.
For range testing Digi provides a 9V battery clip that plugs into the power supply jack of the development kit or radio modem. An alkaline 9V battery will last about 45 minutes connected to an XStream radio if it is transmitting continuously (210mA transmit current for interface board and PKG-R).
For extended testing we recommend using a battery adapter like the one shown here.
Aug 23, 2017