239BATTERY CHARGING9ï Charging connectionsq Attach the BC-158 to a flat surface, such as a desk orcabin, etc., if desired.w Connect the AC adapter as shown below.e Insert the battery pack with/without the transceiver into thecharger.• The charge indicator lights green.r Charge the battery pack approx. 12 hours, depending onthe remaining power condition.DO NOT charge BP-225 more than 18 hours. Other-wise, BP-225 will be damaged. BP-225 must becharged for 12–18 hours only. Optional battery caseWhen using a battery case attached to the transceiver, install6 × AA(R6) size Alkaline batteries as illustrated below.q Remove the battery case from the transceiver.w Install 6 × AA(R6) size Alkaline batteries.• Be sure to observe the correct polarity.CAUTION:• When installing batteries, make sure they are all thesame brand, type and capacity. Also, do not mix new andold batteries together.• Keep battery contacts clean. It’s a good idea to clean bat-tery terminals once a week.AC adapterIC-M90Turn power OFFBP-225BC-158SuppliedscrewsCharge indicatorLights green when theBP-225 (with/withoutIC-M90) is inserted.MIC/SP