ISDT N8 Ultra Watch Charger High Quality User Manual

N8 Ultra Watch Charger High Quality
User Manual

Introduction

Dear customer,
Thank you for purchasing this product.
This product complies with statutory, national and European regulations.
To ensure that the product remains in this state and to guarantee safe use, always follow the instructions in this manual.
These operating instructions are part of this product. They contain important information on setting up and using the product. Do not give this product to a third party without the operating instructions. Keep these operating instructions in a safe place for future reference.

Explanation of symbols

| The symbol with the lightning in a triangle indicates that there is a risk to your health, e.g. due to an electric shock.
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| The symbol with an exclamation mark in a triangle is used to highlight important information in these operating instructions. Always read this information carefully.
| The arrow symbol indicates special information and tips on how to use the product.
| This symbol indicates that the product has potentially oxidizing properties.

Intended use

This product is designed to charge round cell AA and AAA batteries. It supports batteries with different chemical compositions, including NiCd and NiMH, Eneloop, lithium ion, NiZn, LiFePO4 and LiHv batteries. You can also charge batteries with different chemical compositions at the same time. The charging current can be adjusted between 100 mA and 1500 mA. You can also discharge, test and activate inserted batteries. The discharge current can be adjusted between 100 mA and 1000 mA.
The product comes with a built-in overtemperature protection unit that displays the current operating temperature. The charger features three sensor buttons that are used to configure the settings. It features an easy-to-read LCD display that displays the charging parameters.
The product comes with a USB Type-C cable that powers the product via an external USB power adapter or a computer. The maximum power consumption is 18 W.
This product is intended for indoor use only. Do not use it outdoors. Contact with moisture (e.g. in a bathroom) must be avoided under all circumstances.
For safety and approval purposes, do not rebuild and/or modify this product. Using the product for purposes other than those described above may damage the product. In addition, improper use can cause hazards such as a short circuit, fire or electric shock. Read the operating instructions carefully and store them in a safe place. Only make this product available to third parties together with its operating instructions.
Package contents

• Smart charger
• USB Type-C cable (approx. 45 cm)
• Operating instructions

Features and functions

• USB Type-C port
• Three easy-to-use sensor buttons
• LCD display
• Status indicator for each battery slot
• 8 battery slots

Safety information

Read the operating instructions and safety information carefully. If you do not follow the safety instructions and information on proper handling in these operating instructions, we will assume no liability for any resulting personal injury or damage to property. Such cases will invalidate the warranty/guarantee.
a) General information

• The product is not a toy. Keep it out of the reach of children and pets.

• Do not leave packaging material lying around carelessly. It may become a dangerous plaything for children.

• Protect the product from extreme temperatures, direct sunlight, strong jolts, high humidity, moisture, flammable gases, vapours and solvents.

• Never expose the product to mechanical stress.

• If it is no longer possible to operate the product safely, stop using it and prevent unauthorised use. Safe operation can no longer be guaranteed if the product:
  – is visibly damaged,
  – is no longer working properly,
  – has been stored for extended periods in poor ambient conditions or
  – has been subjected to any serious transport-related stress.

• Please handle the product carefully. Jolts, impacts or a fall even from a low height may damage the product.

• Always observe the safety instructions and operating instructions of any other devices which are connected to the product.

• Consult a technician if you are not sure how to use or connect the product, or if you are not sure whether the product is safe to use.

• Maintenance, modifications and repairs must only be carried out by a technician or a specialist repair centre.

• If you have any questions which are not answered in these operating instructions, contact our technical support service or other technical personnel.

b) Setup location

• The product may only be used in dry, enclosed spaces. It must not become damp or wet, otherwise the power adapter may cause a fatal electric shock!
• Place the charger on a clean, level surface of a sufficient size.
• Do not place the charger on flammable materials (e.g. a carpet or tablecloth). Always use a non-flammable, heatproof surface. Keep the charger away from flammable or combustible materials (e.g. curtains).
• Make sure that the cable to the wall plug is not pinched or damaged by sharp edges. Place the cable between the wall plug and the charger in such a way that nobody can trip over it.
• Do not place any containers filled with liquid (e.g. vases or plants) on or next to the charger. Liquids that come into contact with the interior components may destroy the charger and cause a fire or explosion.
• If liquids get inside the charger, immediately disconnect the charger from the power supply and remove any inserted batteries. Discontinue use and take the charger to a specialist repair centre.
• If any liquids get into the mains adapter, switch off the mains socket to which the mains adapter is connected. To do this, turn off the corresponding circuit breaker or unscrew the fuse. In addition, turn off the residual current device in order to disconnect all poles of the socket from the mains voltage. You can then unplug the mains adapter from the mains socket. Discontinue use immediately and take the mains adapter to a specialist repair shop, or dispose of it in an environmentally friendly manner.
• Always use suitable protection when placing the charger on valuable furniture, otherwise the charger may cause scratches, pressure points or discolouration.

c) Operation

• This charger must not be used by children.
• This charger can charge up to eight rechargeable AA or AAA NiCd or NiMH batteries. It can also charge Li-Ion, NiZn, LiFePO4 and LiHv batteries.
• Never insert other rechargeable batteries or non-rechargeable batteries into the charger. This may cause a fire or explosion!
• Ensure that there is sufficient ventilation during use; never cover the charger or the power adapter. Leave sufficient distance (at least 20 cm) between the charger and other objects. The charger may cause a fire if it overheats!
• The charger is only intended to be used with a stabilised direct current of 5 V/DC (e.g. using the power adapter provided).
• Never leave the product unattended during use. The charger comes with a range of safety mechanisms to ensure safe use. However, malfunctions may still occur from time to time.
• Never wear metal or conductive objects (e.g. jewellery such as necklaces, bracelets or rings) when handling the charger or rechargeable batteries. This may result in a short circuit, which can cause a fire or explosion.
• Never place metallic leads and contacts between the rechargeable battery and the charging slot! Insert the batteries directly into the battery charger.
• Do not connect the charging channels of the charger to each another.
• Only use the product in temperate climates. It is not suitable for use in tropical climates. Refer to the “Technical data” section for information on the permitted ambient conditions.
• Do not use the charger in the immediate vicinity of strong magnetic or electromagnetic fields, transmitter aerials or HF generators. These may affect the electronic control system.
• Never use the product immediately after it has been brought from a cold room into a warm one. This may generate condensation, which can cause the product to malfunction or damage the interior components. The mains adapter may also cause a fatal electric shock!
• Allow the product to reach room temperature before using it. This may take several hours.
• If you do not plan to use the product for an extended period (e.g. storage), disconnect the product from the power supply.

d) Battery safety information

• Keep rechargeable batteries out of the reach of children.
• Do not leave batteries lying around, as they constitute a choking hazard for children and pets. Seek immediate medical advice if a battery is swallowed.
• Rechargeable batteries must never be short-circuited, dismantled or thrown into fire. This may cause an explosion!
• Remove the batteries from the charger at the end of the charging process.
• When handling leaking or damaged batteries, always use suitable protective gloves to avoid burning your skin.
• Liquids that leak from batteries are very corrosive and may cause serious damage to objects or surfaces that come into contact with them. Always store batteries in a suitable location that is not prone to damage.
• Do not attempt to recharge disposable, non-rechargeable batteries. This may cause a fire or explosion! Only recharge batteries that are marked as rechargeable.
• Always observe the correct polarity (positive/+ and negative/-) when inserting batteries into the charger.
• This product is only suitable for NiCd, NiMH, Li-Ion, LiHv, Ni-MH, Ni-Cd, NiZn, LiFePO4 and Eneloop AA/AAA batteries.

General information

Rechargeable batteries consist of two electrodes that are placed into an electrolyte. Batteries are therefore classed as a chemical element. Chemical reactions take place inside this element. These reactions are reversible, which makes it possible to recharge the battery.
A charge voltage is required to recharge batteries. This voltage must be higher than the cell voltage. Moreover, the energy (mAh) supplied during the charging process must be higher than that which can be drawn afterwards. This ratio of the energy supplied to the energy drawn is called efficiency.
The capacity that can be drawn mainly depends on the discharge current and has a decisive impact on the condition of the battery. The supplied charge cannot be used as a measure, because some of it will be lost during charging (e.g. converted into heat).
The capacity data given by the manufacturer is the maximum theoretic quantity of current which can be delivered by the battery. This means that a 2000 mAh battery can, for example, theoretically deliver a current of 1000 mA (= 1 A) for two hours. This value depends heavily on numerous factors (e.g. condition of the battery, discharge current and temperature).
Selecting the charging current
In most cases, the charger automatically detects the rechargeable battery specifications. Always check the specifications that were automatically detected in the LCD display (2) and manually correct the parameters if necessary.
The charger allows you to select a suitable charging current for your battery (0.1 A to 1.5 A).
If you wish to manually set the charging current, ensure that the selected current is the same as the value stated on the battery.
Example 1: Labelled as “Standard charge: 12 – 15 hours at xxx mA” (= “Standard charge: 12 – 15 hrs at xxx mA”)
Example 2: Labelled as “Fast charge: 4 – 5 hours at xxx mA” (“Fast charge: 4 – 5 hrs at xxx mA”)
Example 3: Labelled as “Fast rechargeable or “Quick charging possible”). It may not be possible to select the exact charging current, If so, select the next lowest charging current.
If the battery does not indicate the charging current, use the “Auto” function to automatically detect the battery type and charging current. If you wish to set the charging current manually, select a current equivalent to approximately 1/10 of the battery capacity (e.g. for a battery with a capacity of 2500 mAh, select a charging current of approximately 0.3 A).

Operating elements

1. USB Type-C port
2. LCD display
3. Status LED
4. Battery compartment (empty)
5. Up button (selects the active display/menu option)
6. Settings button
7. Down button (selects the active display/menu option)

Display

A. Selected process complete (in the four operating modes)
B. Battery slot free
C. Current battery level in %
D. Battery slot number
E. Battery type
F. Capacity indicator
G. Charging duration in this mode
H. Voltage/current display for the battery compartment
I. Resistance/temperature of the inserted battery
J. Voltage curve (graph)
K. Selected mode
L. Input voltage/power of the charger

Setup

Before using the charger for the first time, remove the protective film from the LCD display (2).

• Use a USB cable to connect the USB Type-C port (1) on the charger to a USB port (computer, charging hub or charger with a USB voltage of 5 V – 12 V/DC, e.g. Qualcomm Quick Charge 3.0 charger). The LCD display (2) will turn on and you will hear a sequence of tones.

Connect the charger to a USB 3.0 port. The current delivered by USB 2.0 ports is not sufficient to power the charger.

Settings menu

You can use the charger firmware to set the battery type, charging mode and charge/discharge parameters. The settings menu can also be used to configure other features (e.g. the display brightness).

• Press and hold the settings button (6) for approximately 1 second to access the settings menu.
• Use the down (7) and up (5) buttons to navigate through the menu. Briefly press the settings button (6) to select a menu option.
• Use the down (7) and up (5) buttons to navigate through the sub-menu. Press the settings button (6) to select and confirm a setting.
• Briefly press the settings button (6) to go back to the main menu. The current setting will be applied.

Overview of settings

Discharge
Activation
Analysis| Select the desired operating mode.
Battery type| Auto
NiMH
NiCd
Eneloop
Li-Ion
NiZn
LiFePO4
LiHv| Select the type of battery that you want to charge.
Activation Charge| Enable/Disable| Activate the inserted batteries. In the “Enable” position, the battery is discharged and then charged.
See section “c) Charging program with discharge function” for details.
Current| 0.1 A – 1.5 A| Set the required charging current in increments of 0.1 A.
Backlight| High
Middle
Low| Use this menu to change the brightness of the LCD display.
Buzzer| High
Middle
Low
OFF| Increase the volume of the notification tones.
Language| English
German
French
Spanish
Japanese
Simplified
Traditional
(Chinese)| Choose the display language.
Self Check| | Press the settings button (6) to start the calibration process. Do not insert any batteries.
About| | Select this menu option to display the system information.
Back| | Select this option to return to the home screen.

Changing displays and viewing the battery status

a) Changing displays
The LCD display (2) only displays the parameters for one battery slot. You can view the parameters of each battery slot individually. To display the parameters of the different battery compartments, follow the steps below to change the display. Note the number of the battery compartment on the LCD display (D) and the status LED on the battery compartment (3).

• Press the up button ▲(5) or down button ▼ (7) to switch between displays and show the parameters of the active battery slots. For example, if you have only inserted 3 batteries, the display will indicate the parameters of the three battery slots in sequence. If all battery slots are occupied, you can move through the displays in numerical order from 1 to 8.

b) Viewing the battery slot status
The Status LED (3) on each battery compartment indicates the status of a process as ongoing/complete. The colour-coded status on LCD display (2) indicates the current operating mode. The colours have the following meaning:

| If the status is orange, this indicates that the corresponding battery is charging.
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| If the status is magenta, this indicates that the corresponding battery is discharging.
| If the status is blue, this indicates that the charger is checking the status of the corresponding battery.
| If the status is purple, this indicates that the battery is being activated.
| A tick indicates that the process for the corresponding battery slot is complete. The charger will beep.

Operation

a) Setting the operating parameters
Set the operating parameters before inserting the batteries into the battery slots. The following operating modes/functions are available:

• Charge
• Discharge
• Activation
• Analysis

In “Charge” mode, the charger automatically detects the charging parameters for the inserted batteries. In other modes, you will need to configure the parameters manually.
b) Inserting a rechargeable battery

• Insert a suitable rechargeable battery into any battery slot (4), ensuring that it is inserted in the correct polarity (see positive/+ and negative!- markings in the battery compartment and on the battery). The charger will beep.

• In most cases, the charger automatically detects the battery type and selects a suitable charging voltage. If the charger detects the wrong battery type, manually select the correct parameters.
  “Auto” mode must be selected in order to charge different types of batteries at the same time.

• The LCD display (2) indicates the slot number of the currently inserted battery. The battery voltage will be displayed. Charging begins automatically.

Typical voltages N) for different types of rechargeable battery

| NiCd/NiMH| NiZn| Li-Ion| LiHv| LiFePo 4| Eneloop
---|---|---|---|---|---|---
Rated voltage| 1.2| 1.5| 3.7| 3.8| 3.3| 1.2
Final voltage| 1.65| 1.9| 4.2| 4.35| 3.65| 1.65
Storage voltage| x| x| 3.7| 3.8| 3.2| x
Discharge voltage| 0.9| 1.2| 3.1| 3.3| 2.9| 0.9

c) Charging program with discharge function
When NiCd, NiMH and Eneloop batteries are inserted, you can use this charging program to discharge the batteries before commencing the charging process. This ensures that the batteries are charged to the highest possible capacity. This helps to compensate for losses in capacity that may occur due to the memory effect.

• If the battery type is not automatically detected, set the battery type to NiCd, NiMH or Eneloop.
• Select “Charge” mode.
• Go to “Activation Charge” and press the settings button (6) to switch to “Enable”. The charger will discharge and then recharge the batteries.
  “Activation Charge” can only be used for NiCd, NiMH and Eneloop batteries.c

d) Standby mode
If no batteries are inserted / all batteries are fully charged, the charger automatically switches to standby mode after 5 minutes of inactivity. To wake the charger, press any button or insert a battery.
The charger does not trickle charge.

Care and cleaning

• Always disconnect the product from the mains socket before cleaning it (unplug the USB cable from the USB port). Remove any inserted batteries from the charger.
  Never use aggressive detergents, rubbing alcohol or other chemical solutions, as these may damage the casing or stop the product from functioning properly.

• Use a dry, lint-free cloth to clean the product.

Disposal

Electronic devices are recyclable waste and must not be placed in household waste. At the end of its service life, dispose of the product according to the relevant statutory regulations.
Remove any inserted rechargeable batteries and dispose of them separately from the product.
Rechargeable batteries
You are required by law to return all used batteries. They must not be placed in household waste.
Rechargeable batteries that contain hazardous substances are labelled with this symbol to indicate that disposal in household waste is forbidden. The abbreviations for heavy metals in batteries are: Cd = Cadmium, Hg = Mercury, Pb = Lead (indicated on the battery, e.g. below the waste bin icon on the left).
Used batteries can be returned to local collection points, our stores or battery retailers.
You thus fulfil your statutory obligations and contribute to environmental protection.

Technical Data

Operating voltage/current ……………12 V/DC, max. 2 A
Power consumption ……………………18 W
Battery slots ………………………………8
Compatible rechargeable batteries ……. Ni-MH, Ni-Cd, Li-lon, NiZn, LiHv, LiFePO4, Eneloop
Size ………………………………………….AA, AAA
Charging current ………………………..0.1 A – 1.5 A/slot
Discharge current ………………………0.1 A – 1.0 A/slot
LCD display size ………………………..240 x 320 IPS
Protection …………………………………Overheat protection
Operating/storage conditions ………. 0 to +40 °C, 0–80 % relative humidity (non- condensing)
Dimensions (L x W x H) ………………188.5 x 79 x 28 mm
Weight ……………………………………..283 g

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