Description - Holaday Industries 491198-48 Series User Manual

Fast Charger Manual Page -- 1
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DESCRIPTION

The 491198-48 NiMH Battery Fast Charger is a dual
power source battery charger. It charges 4.8 volt 25 mA
NiMH batteries and is powered by 85 - 264 Vac line
power or 12.5 Vdc. The 491198-48 uses a -(dV)/(dT)
(negative delta V) technique to determine when the
battery is fully charged, typically one hour. With this
technique, the charge state of the battery has no effect
other than shortening the charge time.
Housed in a rugged enclosure, power enters the battery
charger through a power entry module, which contains
the fuses, or an optional cigarette lighter plug adapter.
LEDs and the label on the front face of the unit provide
operating status. The battery charger connects to the
device being charged through a short cord terminated
with a power jack.
An integrated circuit within the charger monitors the
battery voltage and controls the charging functions
according to the charge state of the battery.