6 Uniden MHS550 Radio Owner’s Manualhand, lift the cover to reveal the contacts in thechamber. Note the polarity markings.Position the alkaline batteries according to the andterminals and snap each into place.Close the cover as shown.Using alkaline batteries let you continue to use the radiountil you have an opportunity to fully recharge your primaryLithium Ion Battery pack. Be sure to dispose of the alkalinebatteries properly according to their package information.Warning - although the design of the case preventsaccidental charging of installed alkaline batteries, for safety,never attempt to recharge alkaline batteries by defeating thecase design or recharging outside of the case.Battery Life and IndicationThe operational power level of the Lithium-Ion battery packor the alkaline battery pack is common to use by eachband. It is important to recognize when the Lithium-Ion packneeds recharging or when you must replace all the alkalinebatteries.On each band LCD screen you see one of the followingbattery power level icons displayed.If a level 0 condition occurs, the battery icon flashes, a‘battery low’ tone sounds repeatedly each second, andBATTERY LOW appears on the message line.To cancel this warning, press any key. The flashing iconcontinues until you turn off the radio. The message and tone,however, disappear..3.FullPowerRecharge/ReplaceFullPowerRecharge/Replace