![]() ![]() Many of these are mounted in a special holder so that the battery can be easily changed however, some manufacturers solder them in place. ![]() The 3-volt lithium watch battery is becoming very popular with motherboard suppliers. Batteries come as either on-board (NiCad batteries, soldered in place or in a fixture, that last from five to seven years) or external (nonrechargeable AA alkaline batteries that last from two to four years). Check the motherboard or the motherboard documentation to determine the actual battery requirements. The voltage of CMOS batteries ranges from 3 to 6 volts.
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