En glish
Thank you for your purchase of an
Recharging Nikon EN-EL4
MH-21 Quick Charger for Nikon EN-EL4
Rechargeable Li-ion Batteries
rechargeable Li-ion batteries. The MH-21
Plug the AC adapter plug into the
1
is equipped with battery calibration fea-
battery charg er (Fig ure 2-a).
ture and charge lamps that glow, blink, or
Plug the wall plug into a power outlet.
2
turn off according to the battery charge
state.
Note: The charge and calibra-
tion lamps will not light until a
Calibration
battery is inserted.
Calibration allows precise measure-
ment of battery charge, ensuring that
Insert the battery (terminals fi rst),
3
the battery level can be displayed more
aligning the end of the battery with
accurately.
the guide and then sliding the battery
in the direction indicated until it clicks
EN-EL4 rechargeable Li-ion
into place (Figure 2-b). Charging will
Batteries
begin when the battery is inserted.
EN-EL4 rechargeable Li-ion batteries can
The charge state is shown by the
transmit information on battery state
charge lamps:
when connected to compatible devices.
Charge lamps (green)
Charge state
Before use, read the warnings and other
50%
80%
100%
information in this manual and in the
Less than 50% of maxi-
mum capacity
documentation for your Nikon EN-EL4
Blinks
Off
Off
rechargeable Li-ion battery.
50–80% of maximum
capacity
Glows Blinks
Off
Notices for customers in the U.S.A.
More than 80% but less
Federal Communications Com mis sion (FCC)
than 100% of maximum
Radio Frequency Interference Statement
Glows Glows Blinks
capacity
This equipment has been tested and found to
100% of maximum
comply with the limits for a Class B digital device,
capacity
Glows Glows Glows
pursuant to Part 15 of the FCC rules. These limits are
designed to provide rea son able pro tec tion against
When charging is complete, slide
4
harmful in ter fer ence in a res i den tial in stal la tion. This
the battery out of the charger in the
equip ment gen er ates, uses, and can radiate radio
fre quen cy energy and, if not installed and used in
reverse direction to that shown in
ac cor dance with the instructions, may cause harm-
Figure 2-b. Unplug the charger.
ful in ter fer ence to radio com mu ni ca tions. How ev er,
there is no guar an tee that in ter fer ence will not occur
When the charger is not in use, replace
in a par tic u lar in stal la tion. If this equipment does
the contact protector to prevent dust
cause harmful in ter fer ence to radio or television
reception, which can be de ter mined by turn ing the
from accumulating on the charger
equipment off and on, the user is en cour aged to try
contacts.
to correct the in ter fer ence by one or more of the
fol low ing mea sures:
If the Calibration Lamp Blinks
• Reorient or relocate the receiving an ten na.
• Increase the separation between the equip ment
If the calibration lamp blinks for about
and receiver.
• Connect the equipment to an outlet on a circuit dif-
ten seconds after a battery is inserted,
ferent from that to which the receiver is con nect ed.
the battery needs to be calibrated to
• Consult the dealer or an experienced radio/TV
technician for help.
ensure that its charge state can be ac-
CAUTIONS
curately measured. The time needed
Modifi cations
to calibrate the battery is shown by the
The FCC requires the user to be notifi ed that any
changes or modifi cations made to this device that are
charge lamps:
not expressly approved by Nikon Corporation may void
the user’s au thor i ty to operate the equipment.
Calibra-
Approximate
tion lamp
Charge lamps (green)
time needed
The accessory power cord must be used
(yellow)
to recalibrate
For USA only: Over AC 125 V
battery
CAL ON
2h
4h
6h
Use a power cord suited to the voltage in use with AC
250 V 15 A rated plugs (NEMA 6P-15) and a minimum
Over 6 hours
Glows
Glows
Glows
Glows
of SVT type cord for insulation and for anything over
AWG 18 in size.
4–6 hours
Glows
Glows
Glows
Off
Notice for customers in the State of California
WARNING: Handling the cord on this product will
2–4 hours
expose you to lead, a chemical known to the State of
Glows
Glows
Off
Off
California to cause birth defects or other reproductive
harm. Wash hands after handling.
Under 2 hours
Glows
Off
Off
Off
Nikon Inc.,
1300 Walt Whitman Road, Melville, New York
To start calibration, press the CAL button
11747-3064, U.S.A.
next to the calibration lamp for about a
Tel.: 631-547-4200
second while the lamp is blinking. When
Notice for customers in Canada
calibration is complete, the calibration
CAUTION
This Class B digital apparatus meets all re quire ments
and charge lamps will turn off and charg-
of the Canadian In ter fer ence-Causing Equipment
ing will begin.
Regulations.
Although calibration is recommended for
ATTENTION
Cet appareil numérique de la classe B respecte toutes
accurate measurement of battery charge
les exigences du Règlement sur le matériel brouilleur
state, calibration need not be performed
du Can a da.
when the calibration lamp blinks. Once
Safety Precautions
begun, calibration can be interrupted as
To ensure proper operation, read this
desired.
manual thor ough ly be fore us ing this
• If the CAL button is not pressed while
prod uct. Af ter reading, be sure to keep
the calibration lamp is blinking, normal
it where it will be read by all those who
charging will begin after about ten
use the product.
seconds.
Precautions for Use: MH-21
• To interrupt calibration, press the cali-
Quick Charger
bration button again. Calibration will
end and charging will begin.
✔ IMPORTANT
The Nikon MH-21 can be used to
Troubleshooting
recharge Nikon EN-EL4 recharge-
• If the lamps blink when no bat-
able Li-ion batteries only. Do not
tery is inserted…
attempt to recharge any other
…the MH-21 has malfunctioned. Un-
batteries with the MH-21.
plug the charger immediately and con-
• Do not use this product with non-com-
tact a Nikon service representative.
patible batteries.
• If the calibration and charge
• Remove the power cable from the
lamps all fl ash at once when a
battery is inserted…
power outlet when not in use.
…a problem occurred during charg-
Precautions for Use: Nikon EN-EL4
ing. Remove the battery and unplug
Rechargeable Li-ion Batteries
the charger immediately, then contact
✔ IMPORTANT
a Nikon service representative.
The in ter nal temperature of the
Specifi cations
bat tery may rise while the bat tery
Rated input:
AC 100–240 V (50/60 Hz)
is in use, es pe cial ly when the am-
Charging output:
DC 12.6 V/1200 mA
bient temperature is high. If you
Supported batteries: Nikon EN-EL4 recharge-
at tempt to recharge the bat tery
able Li-ion batteries
while the in ter nal tem per a ture
Charging time:
Approximately 100 min-
is elevated, the bat tery will not
utes when no charge
charge or will charge only partial-
remains
ly. The battery may also not func-
Operating
tion properly. Wait for the battery
temperature:
0–40 °C (+32–104 °F)
to cool be fore charging.
Dimensions:
Approximately
• The battery is not fully charged at the
135 mm (W) × 85 mm
fac to ry. Charge the battery before use.
(D) × 54.5 mm (H)
(5.3 × 3.3 × 2.1˝)
• When recharging the battery, the am-
bient temperature should be between
Length of cord:
Approximately
1800 mm (70.8˝)
0–40 °C (32–104 °F) or the battery may
Weight:
Approximately 225 g
not fully charge or may not fuction
(7.9 oz), excluding
properly.
power cable
• Do not attempt to recharge a fully-
Improvements to this product may result
charged battery. Failure to observe this
in un an nounced chang es to spec i fi ca tions
precaution will result in re duced battery
and external ap pear ance.
performance.
• Should you notice smoke or an unusual
smell coming from the charger, unplug
it, taking care to avoid burns. Take the
charger to a Nikon representative for
inspection.