Nitecore D2 Smart Charger User Manual

1. Einleitung

The Nitecore D2 is an advanced universal smart charger compatible with nearly all cylindrical rechargeable batteries. It automatically detects Li-ion, IMR, LiFePO4, Ni-MH, and Ni-Cd batteries, and through intelligent circuitry, selects the optimal charging mode (CC, CV, and dV/dt). The integrated LCD panel clearly displays charging parameters and progress. The D2 features two independently controlled charging slots, allowing for simultaneous charging of different battery types.

2. Sicherheitshinweise

Use the charger only with compatible rechargeable batteries as listed in the specifications. Attempting to charge non-rechargeable batteries may cause explosion, rupture, or leakage, resulting in property damage and/or personal injury.
Ensure correct battery polarity (+/-) when inserting batteries into the charging slots. The charger features reverse polarity protection.
Lassen Sie Akkus nicht unbeaufsichtigt laden.
Keep the charger away from water, high humidity, and extreme temperatures.
The charger is constructed from durable ABS (fire retardant/flame resistant) material for enhanced safety.
Zerlegen oder modifizieren Sie das Ladegerät nicht.
Trennen Sie das Ladegerät von der Stromquelle, wenn es nicht verwendet wird.

3. Packungsinhalt

Nitecore D2 Smart Charger
AC Power Cord (for wall outlet)
12V DC Car Power Cord
2 x EdisonBright AA to D Battery Converter Spacers
Bedienungsanleitung

Nitecore D2 Smart Charger with packaging, AC and DC power cords, and EdisonBright AA to D battery spacers.

This image displays the Nitecore D2 Smart Charger, its retail packaging, included AC wall adapter, 12V DC car adapter, and two EdisonBright AA to D battery converter spacers.

4. Produktmerkmale

Intelligent circuitry detects battery type and status.
Automatic selection of appropriate voltage and charge mode (CC, CV, dV/dt).
Compatible with LiFePO4 batteries (manual selection required).
Supports small capacity batteries.
Automatic charging termination upon completion.
Over-charge prevention and temperature monitoring.
Verpolungsschutz.
Designed for optimal heat dissipation.
Integrated LCD panel displays charging parameters and progress.

5. Einrichtung

Strom anschließen: Plug the AC power cord into the charger and then into a wall outlet, or connect the 12V DC car power cord to the charger and then to your vehicle's 12V DC socket. The charger will perform a self-test, and the LCD screen will illuminate.
Erste Anzeige: When no batteries are inserted, the LCD will display "null".

6. Bedienungsanleitung

6.1 Batterien einlegen

Insert one or two rechargeable batteries into the D2's charging slots. The charger will automatically identify the battery type (Li-ion, IMR, Ni-MH, Ni-Cd) and begin charging. For LiFePO4 batteries, manual selection is required (see section 6.4).

Nitecore D2 Smart Charger demonstrating compact size and compatibility with multiple battery types.

This image illustrates the compact design of the Nitecore D2 charger and its ability to accommodate two batteries of varying sizes and chemistries simultaneously, including Li-ion, IMR, LiFePO4, Ni-MH, and Ni-Cd.

6.2 Das LCD-Display verstehen

The integrated LCD panel provides real-time information about the charging process:

Ladestatus: Displays the current charge level with a bar graph.
Akku-Typ: Indicates the detected battery chemistry (e.g., Li-ion, Ni-MH).
Lademodus: Shows the active charging mode (CC, CV, or -dV/dt).
Bandtage: Zeigt die aktuelle Akkuladung antage.
Aktuell: Zeigt den Ladestrom in mA an.
Ladezeit: Zeigt die verstrichene Ladezeit an.

Use the two side buttons to cycle through information for each slot or to select specific battery types and charging parameters.

Nitecore D2 Smart Charger LCD display showing charging voltage, current, and time.

A visual representation of the Nitecore D2's LCD panel, highlighting its ability to display real-time charging parameters such as voltage, current, and elapsed charging time.

Nitecore D2 Smart Charger intelligent auto-detect function and charging modes.

This image demonstrates the charger's intelligent auto-detect function, showing how it identifies battery types and selects appropriate charging modes like Constant Current (CC), Constant Voltage (CV), and -dV/dt detection for Ni-MH/Ni-Cd batteries.

6.3 Ladevorgang

Once a battery is inserted, the charger will automatically detect its type and begin charging. The LCD will show the progress. Charging stops automatically when complete.

6.4 Manual LiFePO4 Selection

For LiFePO4 batteries, the charger requires manual selection. After inserting a LiFePO4 battery, press the side button corresponding to that slot to cycle through the battery types until "LiFePO4" is displayed. The charger will then proceed with the appropriate charging cycle.

6.5 Using AA to D Battery Converter Spacers

The included EdisonBright AA to D battery converter spacers allow you to use rechargeable AA batteries in devices designed for D-sized batteries. Simply insert an AA battery into the spacer, then place the spacer into the D-sized battery compartment of your device. These spacers do not affect the charging process of the AA batteries in the Nitecore D2 charger.

Eine Nahaufnahme view of the EdisonBright AA to D battery converter spacer, designed to allow AA batteries to be used in D-sized battery compartments.

7. Wartung

Reinigen Sie die Kontakte des Ladegeräts und der Batterie regelmäßig mit einem trockenen, weichen Tuch.
Bewahren Sie das Ladegerät an einem kühlen, trockenen Ort auf, wenn Sie es nicht verwenden.
Avoid exposing the charger to direct sunlight or extreme temperatures.

8. Fehlerbehebung

Ladegerät lässt sich nicht einschalten: Ensure the power cord is securely connected to both the charger and the power outlet/source. Check if the outlet is functional.
Akku wird nicht aufgeladen: Verify that the battery is inserted with correct polarity. Ensure the battery is a compatible rechargeable type. If the battery is severely over-discharged, it may not be recognized immediately; try reinserting.
LCD display shows "null": This indicates no battery is detected in the slot. Ensure the battery is properly seated and making contact.
Überhitzung: The charger has temperature monitoring. If the charger or battery becomes excessively hot, discontinue use and allow it to cool. Ensure proper ventilation around the charger.

9. Spezifikationen

Eingang	Wechselstrom 100–240 V, 50/60 Hz, 0.25 A (max.), Gleichstrom 12 V, 1 A
Ausgangsvolumentage	4.2 V ±1 % / 3.7 V ±1 % / 1.48 V ±1 %
Ausgangsstrom	500mA x 2
Kompatibel mit	Li-Ionen / IMR / LiFePO4: 26650, 22650, 18650, 17670, 18490, 17500, 18350, 16340 (RCR123), 14500, 10440 Ni-MH / Ni-Cd: AA, AAA, AAAA, C
Maße	143 mm × 74 mm × 36 mm (5.63"T x 2.91"B x 1.42"H)
Gewicht	168g (without batteries and power cord) / 0.8 Pounds (total item weight)

Nitecore D2 Smart Charger specifications and compatible battery types.

This graphic outlines the technical specifications of the Nitecore D2 charger, including input/output voltage and current, dimensions, weight, and a comprehensive list of compatible Li-ion, IMR, LiFePO4, Ni-MH, and Ni-Cd battery sizes.

10. Garantie und Support

The Nitecore D2 Smart Charger is insured worldwide by Ping An Insurance (Group) Company of China, Ltd. For specific warranty terms and conditions, please refer to the documentation included with your product or contact the retailer. For technical support or inquiries, please contact the manufacturer or your point of purchase.

Nitecore D2 Smart Charger package with validation code.

The product packaging for the Nitecore D2 charger, indicating the location of the validation code for product authenticity verification.

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