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battery charger is designed to have unmatched safety for
protecting users from shock and other hazards when used as
directed. Accordingly, it is important for users to read the
following instructions carefully.
• Do not charge non-rechargeable batteries like alkaline,
carbon-zinc, or non-rechargeable lithium.
• Remove all batteries from the charger before plugging in
AC/DC adapter.
• Make sure battery contacts are clean and there is no debris
in the charger.
• Do not short-circuit the contacts with metal objects.
• Use only with Dell 70W or 90W AC/DC adapter, or the AC/DC
adapter provided with this charger(optional).
• Put the battery tightly into the battery station to ensure
a good connection.
• Observe the charging status LED and stop servicing
immediately if it shows error signal (refer to the section 3.3).
• Always store the charger in a cool and dry area.
3. Operation
3.1. To power the charger, connect the DC tip of the AC
adapter to the socket on the back of the charger, then
plug the AC connector of the adapter into a properly
grounded outlet. The battery charger is ready to use.
3.2. Insert a battery pack into either bay.
The battery's charging time will vary according to its
charge status and WHr capacity.
3.3. LED Status
State
LED signal
Charging
Red
Fully charged
Green
Under Voltage Fault
Red blinking Pack voltage < 10.0 V
Over Temperature Fault Red blinking Pack temperature >117.5˚F(47.5˚C)
Constant charging
Red blinking Constant charging time >
time Fault
Note: When the LED is red blinking, the internal circuit
automatically stops the charging process.
For safety purpose, remove the battery from the
charger bay and disconnect the DC power source from
the charger. The red blinking LED indicates that the
battery is faulty or excessively worn-out.
4. Certification
The battery charger is manufactured to comply with part 15 of
the FCC Rules.
5. Specifications
Charging Rate: 2.6A Max.
Charging Time: 1.5~2.5 hours for two batteries
Power Requirement: Dell 70W, 90 W AC/DC adapter
Operating Temperature: 32~104˚F ( 0 ~ 40˚C)
Protection for Safety: Over-temperature/current/voltage-protection
Dimensions: 6.7 x 4.7x 2.2 (inch) or 170 x 120 x 55 (mm)
Meaning
Charging
Charging complete
120 minutes
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