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Model CMS208-DS-D820
Description
This is a fast battery charger for Dell™ model D820, D830 & D831
batteries only. Do not attempt to use this charger with any other battery
type. Eight battery charging pockets are provided to rapidly service this
specific battery series. Working from a common line power outlet, a
maximum 600 Watt power supply mounted internally provides all the
necessary power for charging these batteries as described below.
Charger Status Indicators
A tri-color LED indicator is located below each pocket to indicate
charge status of the battery in that pocket:
Indication
off
solid yellow
solid green
blinking red
blinking yellow / green
blinking green
blinking yellow
Meaning
no battery present
battery charging
battery charged and ready
charging error - charge cycle
terminated (contact battery supplier)
calibration mode
calibration finished
charge pending
Preparation for Use
Place the charger unit on a sturdy horizontal surface with its line cord
exiting the unit from the back side (the side away from the user). The
power switch will be on the side nearest the user. Plug the AC line cord
into a standard 115 VAC socket. The cord serves as the disconnect
device. The line outlet socket must be near the unit and easily
accessible. The circuit should be qualified to handle at least 15 Amps
and be relatively free of other heavy loads while the charger is operating.
Specifications
input Voltage: 100 to 120VAC 60 Hz 1 phase
input power: 7 Amps AC max.
Max. output voltage: 22 VDC max.
Max. output current: 2.0 Amps max. per pocket
22 A DC max total
operating temp: 0 to 45 C°
battery types: Dell™ Battery Model# D820, D830,D831
size: 17" x 17.25" x 6.25"
weight: 25 lbs. less batteries
Warning
Charge only Dell™ model D820, D830 & D831 batteries.
Smart Battery Calibration
Dell™ series batteries mentioned above are 'smart'. They have an internal
controller that interacts with the charger to report charge status and other
information. Through normal use errors in the estimated charge level will
accumulate and cause false readings. These errors can be eliminated by
recalibrating the battery's internal controller. This charger has the facility to
calibrate batteries placed in the left-most front pocket. To trigger calibration of
a battery in this pocket, momentarily press the front-panel calibrate switch.
The start of a calibration cycle will be confirmed by a blinking yellow/green
indicator. The calibration cycle may take up to 9 hours. When finished the
battery will be fully charged and the controller will be calibrated to that state.
June 20, 2007
Operation and User Interface
Press the rocker switch in to turn the charger power supply on. If line
power is present, the power indicator will illuminate steady green and the
power supply fan will become active producing an audible sound (this is
normal). Place batteries into charger pockets in any position or sequence
being careful to orient the batteries so the connectors line up, then gently
pressing them down all the way into the pockets. Each of 4 pairs
(front/rear) of pockets operates independently charging batteries
sequentially based on which battery was inserted first. When a battery is
seated properly in a pocket its corresponding LED will illuminate solid
yellow if the battery is the first of the pair to be inserted, or will blink yellow
if the battery is the second of the pair to be inserted. When a pocket has
finished charging, its LED will turn solid green and the second pocket of
that pair will begin charging, if necessary. If a fully charged battery is
IMPORTANT SAFETY INSTRUCTIONS
1. SAVE THESE INSTRUCTIONS - This manual contains important
safety and operating instructions for battery charger
model CMS208-DS-D820.
2. Before using battery charger, read all instructions and cautionary
markings on battery, battery charger, and computer.
3. CAUTION - To reduce risk of injury, charge only Dell™ model D820, D830
and D831 batteries. Other types of batteries may burst causing
personal injury and damage.
Dell Computer p/n DS-8BY-BC-820
inserted, the pocket will indicate charging for a short time, then terminate
with the indicator showing solid green. See below for a complete list of
status indicators. Batteries may remain in the pockets indefinately or be
removed at any time without damage. It normally takes 4 to 6 hours to fully
charge a battery.