NITECORE UNK2 Dual Slot USB Charger User Manual
- June 6, 2024
- Nitecore
Table of Contents
NITECORE UNK2 Dual Slot USB Charger
- Real-time Info Display
- Automatic Adoption of Charging Modes
- Overcharge and Over-Discharge Protected
IMPORTANT NOTICE CONCERNING WARRANTY SERVICE
Thank you for purchasing! Before using this charger, please find your verification code on the package box, and go to http://charger.nitecore.com/validation (or scan the QR code beside the verification code to visit on your mobile phone).
Type in your verification code and personal information as required, and submit the page. After verification, Nitecore will send you a warranty service email. This email and your registration email address are essential to your possible warranty application. Before you complete the warranty service registration, you cannot enjoy our warranty service for your purchase.
Features
- Dual slot charger for Nikon camera batteries
- Compatible with Nikon EN-EL15/EN-EL15a/EN-EL15b batteries
- USB input port
- Real-time information on battery voltage, charging current, battery temperature, battery level and other parameters
- Monitors battery status and displays battery health
- Reverse polarity protection and anti-short circuit protection
- Automatic adoption of the optimal charging modes between CC and CV
- Automatic adoption of charging current
- Automatic termination upon charging completion
- Activates over-discharged batteries with protective circuits
- Compatible with power banks, 5V solar panels and USB adapter
- Made from durable and fire retardant PC materials
- Optimal heat dissipation design
- Insured worldwide by Ping An Insurance (Group) Company of China, Ltd
Specifications
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Input: DC 5V / 2A
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Output Voltage: Slot 1 8.4V±1% / Slot 2 8.4V±1%
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Output Current: 1000mA (MAX)
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Interface: Input: USB
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Output: Connector
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Battery compatibility: Nikon camera battery EN-EL15/EN-EL15a/EN-EL15b
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Compatible camera model:
Nikon D500, Nikon D600, Nikon D610, Nikon D750, Nikon D800,
Nikon D800E, Nikon D810, Nikon D810A, Nikon D850, Nikon D7000,
Nikon D7100, Nikon D7200, Nikon D7500, Nikon 1V1, Nikon V1,
Nikon Z6, Nikon Z7, Nikon D780, Nikon Z5, Nikon Z 6II,
Nikon Z 7II -
Size: 85mm×50mm×25.5mm (3.35”×1.97”×1”)
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Weight: 66g (2.33oz)
Operating Instructions
This product is designed specifically for Nikon EN-EL15/EN-EL15a/EN-EL15b camera batteries. The UNK2 supports charging batteries in both slots simultaneously. The output current is adjusted automatically according to the input current to reach an optimal charging setting. This product shall NOT be used with other batteries not specified in this manual.
Automatic Current Adjustment
The UNK2’s actual output current depends on the maximum power supplied from
the USB power source. The output current will get adjusted based on the actual
power being input to the device. The UNK2 is capable of outputting 1000mA,
increasing its efficiency while shortening charging time.
Battery Status Monitoring
Once the battery is inserted, the UNK2 will proceed with an initial low
current test charge to diagnose the battery status. After the diagnosis, the
battery status will
be shown as Good, Normal or Poor.
Note: Re-insert the battery when “Poor” appears on screen to avoid the
odd of poor battery contact, replace the battery if “Poor” comes up on screen
consistently.
Reverse Polarity and Anti-Short Circuit Protection The UNK2 makes use of
mechanical reverse polarity protection. Inserting incompatible batteries or
incorrect battery installation will prevent the initiation of the charging
process. The error message “EE EE” will come up on the LCD display when a
short circuited battery is installed.
Battery Recovery
The UNK2 will attempt to recover over-discharged batteries when inserting in
the charging slot. Upon successful battery recovery, the entire battery level
indicator
will flash to represent that a battery has been successfully recovered.
Note: This feature only works with protected batteries.
Cautions
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The UNK2 is only compatible with Nikon EN-EL15/EN-EL15a/EN-EL15b camera batteries. Do NOT attempt to charge other batteries.
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Moderate heat from this product is to be expected during the charging process, which is normal.
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Operating temperature: -10°~ 40°C, storage temperature: -20° ~ 60° C.
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Carefully read all labels on the device to ensure batteries are installed correctly.
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Please connect this charger to power supplies with the input voltage stated in the specifications of the user manual. If the input voltage is too low or too high, it may lead to malfunctions, or even a fire.
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DO NOT charge batteries if there is any sign of faulty or short circuit.
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The charger is designed for adults. Use of the charger by kids under age must be under supervision. Operation, using or cleaning of the charger may NOT be done by kids aged 8 years or younger.
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DO NOT leave the product unattended while it is connected to a power supply.
Unplug the product at any sign of malfunction and refer to the user manual. -
Batteries of short lifespan should be replaced as soon as possible.
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DO NOT store or use the product in an environment where the temperature is extremely high / low or changes rapidly, or in a confined area with a high temperature.
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Store the device in ventilated areas. DO NOT uses the device in moist environment and keep away from any combustible materials.
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Avoid any shock or impact to the device.
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DO NOT place any conductive or metal object in the device to avoid short circuiting and explosions.
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Unplug the device and remove batteries when it is not in use.
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DO NOT disassemble or modify the device as doing so will render the product warranty invalid. Please refer to the warranty section in the manual for complete warranty information.
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DO NOT misuse in any way! Use for intended purpose and function only.
Disclaimer
This product is globally insured by Ping An Insurance (Group) Company of
China, Ltd. NITECORE shall not be held responsible or liable for any loss,
damage or claim of any kind incurred as a result of the failure to obey the
instructions provided in this user manual.
Warranty Details
Our authorized dealers and distributors are responsible for warranty service. Should any problem covered under warranty occurs, customers can contact their dealers or distributors in regards to their warranty claims, as long as the product was purchased from an authorized dealer or distributor. NITECORE’s Warranty is provided only for products purchased from an authorized source. This applies to all NITECORE products.
To be qualified for warranty, please refer to the “IMPORTANT WARRANTY NOTICE”
section on top to validate your product. Any DOA / defective product can be
exchanged for a replacement through a local distributor/dealer within the 15
days of purchase. After 15 days, all defective / malfunctioning NITECORE®
products can be repaired free of charge for a period of 12 months (1 year)
from the date of purchase. Beyond 12 months (1 year), a limited warranty
applies, covering the cost of labor and maintenance, but not the cost of
accessories or replacement parts.
The warranty is nullified if the product(s) is/are:
- broken down, reconstructed and/or modified by unauthorized parties
- damaged from wrong operations (i.e. reverse polarity installation, installation of non-rechargeable batteries or failure to obey the warnings)
- damaged by batteries leakage.
For the latest information on NITECORE® products and services, please contact a local NITECORE® distributor or send an email to service@nitecore.com
All images, text and statements specified herein this user manual are for reference purpose only. Should any discrepancy occurs between this manual and information specified on www.nitecore.com information on our official website shall prevail. SYSMAX Innovations Co., Ltd. reserves the rights to interpret and amend the content of this document at any time without prior notice.
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