Device Information36 Rino 650N Owner’s ManualAbout the BatteriesWARNINGSee the Important Safety and ProductInformation guide in the productbox for product warnings and otherimportant information.The temperature rating for the devicemay exceed the usable range of somebatteries. Alkaline batteries can ruptureat high temperatures. Alkaline batterieslose a significant amount of theircapacity as temperature decreases. Uselithium batteries when operating thedevice in below-freezing conditions.Do not use a sharp object to removebatteries.NoticeContact your local waste disposaldepartment to properly recycle thebatteries.Maximizing Battery LifeYou can do various things to increasethe battery life.• Turn the backlight off when notneeded.• Lower the backlight brightness(page 5).• Decrease the backlight timeout(page 24).• Enable battery save mode(page 24).Installing AA Batteries with theOptional Alkaline Battery PackInstead of the lithium-ion battery pack,you can use alkaline, NiMH, or lithiumbatteries, using the optional AlkalineBattery Pack. This is especially handywhen you are on the trail and cannotcharge the lithium-ion battery pack.Use NiMH or lithium batteries for bestresults.