DKM Solutions Inc. has developed an adapter, which attaches to a Bendix King Style AA power pack (aka Clamshell). This portable power source allows personal communication devices to be charged even if the power fails or is unavailable. Simply plug in a 12-volt (car style) power cord and go. Stay connected in any incident - anywhere up to 300 hours of talk/standby. The device works with cell phones, sat phones, two-way radios, GPS systems, PDAs and more.