NiteCore D4 User Manual
Download Operation & user’s manual of Nitecore D4 Battery Charger for Free or View it Online on All-Guides.com.
1
2
Digicharger D4
®
User Manual
The Nitecore D4 is a universal smart charger compatible with almost
all cylindrical rechargeable batteries, thus eliminating the need to
own several chargers. The D4 automatically detects Li-ion, Ni-MH
and Ni-Cd batteries, and through manual selection is also capable of
charging LiFePO4 batteries. Intelligent charging circuitry selects the
optimal charging mode (CC, CV and dV/dt) for a given battery and
each of the D4’s four microcomputer-controlled charging slots then
monitors and charges the battery independently. Furthermore, an
integrated digital LCD screen clearly displays charging progress,
voltage, current and time while an intelligent automatic power-off
function terminates current when charging is complete.
The Nitecore D4: The world’s most advanced fully-automatic digital
charger. It’s as simple as insert, detect and charge.
Features
• Capable of charging 4 batteries simultaneously
• Each of the four battery slots monitors and charges independently
• Compatible with and identifies Li-ion (26650, 22650, 18650, 17670,
18490, 17500, 18350, 16340(RCR123), 14500, 10440), Ni-MH and
Ni-Cd (AA, AAA, AAAA, C) rechargeable batteries
• Optimized charging design for IMR batteries
• Integrated LCD panel clearly displays charging parameters and
progress
• Two conveniently located side buttons allow easy selection of
specific battery types and charging parameters
• Intelligent circuitry detects the battery type and status before
entering automatic charge mode (CC, CV, dV/dt)
• Automatically detects battery power status and selects the
appropriate voltage and charge mode (with the exception of
LiFePO4 batteries which require manual selection)
• Compatible with LiFePO4 batteries
• Compatible with small capacity batteries
• Automatically stops charging when complete
• Features over-charge prevention to protect batteries
• Features temperature monitoring to prevent overheating
• Made from durable ABS (fire retardant / flame resistant)
• Features reverse polarity protection
• Designed for optimal heat dissipation
• Certified by RoHS, CE, FCC and CEC
• Insured worldwide by Ping An Insurance (Group) Company of
China, Ltd.
Specifications
Input: AC 100-240V 50/60Hz 0.35A(MAX), DC 12V 1A
Output voltage: 4.2V ±1% / 3.7V ±1% / 1.48V ±1%
Output current: 375mA x 4 / 750mA x 2
Compatible with:
Li-ion / IMR / LiFePO4: 26650, 22650, 18650, 17670, 18490, 17500,
18350, 16340 (RCR123), 14500, 10440
Ni-MH / Ni-Cd: AA, AAA, AAAA, C
Dimensions: 143mm× 99mm×36mm
Weight: 239g (without batteries and power cord)
Thanks for purchasing NITECORE!
The All-Round Flashlight Expert
Operating instructions
1. Plug one end of the power cord or car charging adapter into the
D4 charger. Plug the other end of the cord into an applicable outlet.
The LCD display and all battery indicator bars will illuminate as the
charger runs a quick self-test. When testing is complete, the name
of the product will appear on the screen, the bars will dim and the
charger will enter into stand-by mode. If no batteries are detected
within 1 minute, the charger will automatically enter Eco Mode (the
LCD backlight will turn off). When a battery is installed while in Eco
Mode, simply press any button to activate the LCD display.
2. The D4 features four charging slots, each of which charges and
monitors a battery independently. Rechargeable batteries of differing
chemistries and voltages may be charged simultaneously using
either 1, 2, 3 or all 4 of the charging slots. When inserting a battery,
ensure the positive and negative ends correspond with the positive
(+) and negative (-) symbols on the charger. Incorrect installation will
result in failure to initiate the charging process.
Note: The D4 is capable of charging 3.7v Li-ion rechargeable cells,
1.2v, Ni-MH/Ni-Cd rechargeable batteries and 3.2v LiFePO4
batteries. See above for description of battery sizes.
3. When a battery is first inserted the D4 will run a short test causing
the battery indicators bars to illuminate in sequence from the bottom
to the top. When the test is complete, the D4 will enter into charging
mode. If any unusual circumstances have been detected, e.g. a
backward battery installation, the battery indicator bars will blink
rapidly and “Err” will be presented on the screen to urge an
immediate removal of the battery.
4. While in charging mode, the battery indicator bars will blink
rhythmically to indicate the on-going charging process. The battery’s
power status and charging progress is indicated by the number of
bars that illuminate steadily. The LCD display will also display
battery voltage, followed by charging current and elapsed charging
time in sequence. Pressing the side “MODE” button will cycle
through these charging parameters. To view the charging progress
of a different charging slot press the side “SLOT” button to select a
desired slot. When charging is complete, all five battery indicator
bars will illuminate steadily and “Chg.Finish” will appear on the LCD
display.
Note: When the D4 is charging three or four batteries, charging
current will be set to 375mA. Alternatively, when charging either one
or two batteries, charging current will be set to 750mA.
Charging LiFePO4 batteries
To charge LiFePO4 batteries, simply press and hold the side
“MODE” button for more than 2 seconds right after the battery test
completes and “LiFePO4” will appear on the LCD display to indicate
the activation of LiFePO4 charging mode. To exit LiFePO4 charging
mode, simply press and hold the side “MODE” for more than 2
seconds once again, or remove and reinstall the battery.
Charging Small Capacity Batteries
When charging batteries with a capacity lower than 750mAH (e.g.
AAA, 10440 and 16340 batteries), a low charging current is
recommended to help extend battery life.
To select a low charging current, while in regular charging mode,
simply press the side “SLOT” button to select a desired battery slot
and then press and hold the side “MODE” button for more than 1
second until “LOW” is displayed on the LCD display indicating
activation of low current charging mode. To exit, simply press and
hold the side “MODE” button for more than 1 second once again or
remove and reinstall the battery.
Nocturnal Charging Mode
When charging a battery overnight, nocturnal charging mode is
recommended. Simply press and hold the side “SLOT” button for
more than 1 second in any state until the LCD backlight turns off
thus activating nocturnal charging mode. This feature ensures a
peaceful night’s sleep without being disturbed by the D4’s LCD
backlight and blinking LEDs. To exit nocturnal mode and turn the
backlight on again, press and hold the side “SLOT” button for more
than 1 second again.
Battery Activation
For every installed battery, the D4 will activate the battery by
charging it for 6 seconds at a low current. If zero voltage is detected,
“Err” will be displayed on the LCD screen. If activation fails the first
time, please remove and reinstall the battery once again and
activate for the second time.
Note: The D4 is not recommended for use with over-discharged
(zero volt) UNPROTECTED Li-ion batteries. Li-ion batteries without
a protection circuit can potentially cause a fire or explosion.
Overtime Prevention
The D4 is equipped with an advanced ‘overtime’ safety function. The
D4 will individually monitor the elapsed charging time for each
battery slot and if a particular slot exceeds 20 hours, the D4 will
automatically power off the slot and display full charging bars to
indicate completion of the charging process. This feature reduces
the risk caused by batteries of lesser quality.
Precautions
1. The D4 is compatible with batteries of varying sizes, therefore
when charging certain batteries (such as 26650 and AAA), manual
adjustment of the battery’s position within the slot is recommended,
as to ensure solid contact is made between both sides of the battery
and the charging slot’s metal contact points.
2. The D4 is restricted to charging Li-ion, IMR, LiFePO4,
Ni-MH/Ni-Cd rechargeable batteries only. Never use the D4 with
other types of batteries as this could result in battery explosion,
cracking or leaking, causing property damage and/or personal injury.
3. The D4 should only be used indoors or inside a motor vehicle and
under no circumstances should it be exposed to water, high humidity
and low or high ambient temperatures.
4. Do not disassemble or modify the charger.
5. Children under the age of 18 should be supervised by an adult
when using the D4.
6. The D4’s safe operating temperature is between 0ºC--40ºC
7. Do not use or store the charger near open flames, direct sunlight,
heating devices or other high-temperature environments.
Warranty Service
All NITECORE® products enjoy a comprehensive after sale warranty
service. A malfunctioning NITECORE® D4 charger may be
exchanged for a replacement by a local authorized distributor/dealer
within the first 15 days of receipt by the end user. After 15 days and
up to 12 months, the D4 may be sent to an authorized
distributor/dealer for repair. Beyond 12 months, the warranty covers
labor costs and maintenance with the exclusion of accessories or
replacement parts.
The warranty is nullified in any of the following situations:
1. The product(s) is/are broken down, reconstructed and/or modified
under unauthorized conditions.
2. The product(s) is/are damaged through improper use.
3. The product(s) is/are damaged by leakage of batteries.
For further details of Nitecore’s warranty service, please contact a
regional distributor/dealer or send an email to [email protected]
The Nitecore official website shall prevail in case of any product data
changes.