ToolkitRC M8D Dual Smart Charger

Introduction

Thank you for purchasing the M8D balance charger. Please read this manual carefully before use.

Key Points

• Tips: Helpful advice for using the charger.
• Important: Critical information regarding safety and operation.
• Information: General details about the product.

Further Information

To ensure you have the best experience with this product, please scan the QR codes below to stay up to date with news, information, and firmware updates for your charger. Alternatively, visit www.toolkitrc.com.

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Safety

1. M8D allows an input voltage of DC 10.0V-49.0V. To ensure that the power supply voltage is consistent, pay attention to the positive and negative polarity of the power supply before use.
2. Do not use this product in hot or humid environments. Keep away from flammable liquids and gases.
3. Never leave charging batteries unattended.
4. When not in use, please turn off/unplug the device.
5. When using the charging function, please set a current that matches the battery performance envelope. Do not set an excessive current for charging to avoid damage to the battery. Check the guidelines of your battery's manufacturer for correct charging instructions.

Product Description

The M8D is a touch screen balanced charger product with a total charging power of up to 1600W. It features an IPS bright display, a capacitive touch screen, and a roller encoder for convenient operation.

• Manages charging, discharging, and balancing for LiPo, LiHV, LiFe, Lion LTO (1-8S), NiMH (1-20S), and PB (1-15S) batteries.
• DC power supply: 10.0-49.0V, MAX 1600W.
• Charging power: MAX 30.0A @MAX800W*2 (ASYN) or MAX 50.0A @MAX1600W (SYNC).
• Discharging power: MAX 10A @40W*2 (normal) or MAX 30A @800W*2 (recycle).
• Charging accuracy: <0.005V.
• Balancing current: 2000mA.
• Built-in 65W USB-C fast charger.
• Lithium battery cut-off voltage can be set (TVC).
• Automatically allocates input power.
• Supports 11 languages.
• Can record 10 commonly used batteries.
• Can record 3 groups of commonly used power sources.

M8D Layout

Front View

• Display/Touch panel
• Main port*2
• Balance port*2
• Scroll wheel
• CH/Exit button

Back View

• DC input XT90
• USB A/C output
• Cooling fan

Quick Start

1. Connect the device to a DC 10-49V power source.
2. The screen displays the boot logo for 2 seconds, accompanied by an audible tone.
3. After booting up, the screen enters the main interface.
4. Navigating the Interface: Touch the main interface or use the [Scroll Wheel] to select a function, then press the [Scroll Wheel] to confirm.
5. System Settings: Touch the [Settings icon ⚙️] or press and hold the [Scroll Wheel] for 2 seconds to enter system settings.
6. Viewing Channel Info: Touch the [Info] button or use the [Scroll Wheel] to select the [Info] button to display voltage and internal resistance.
7. Adjusting Charging Task: Touch [Status] or short press [Scroll Wheel] to select [Status] to adjust or end the charging task when the channel is idle.
8. Press the [Exit Button] to end modifications or return to the previous interface.

Scroll Wheel Functions:

• Short press [Scroll Wheel]: Confirm function.
• Long press [Scroll Wheel] (2 seconds): Delete key function.
• Successful key operation is confirmed by a sound.

Charging Settings

From the main interface, select and short press the [Scroll Wheel] to enter the charging function. If "Battery selection" is enabled in the main settings, you can save up to 10 battery records. Otherwise, it defaults to the first battery record.

1. Battery Type

Select a pre-set battery or press [New Battery] to enter the new battery setting interface. You can modify the battery type, mode, and charging current.

The charger supports 7 types of batteries: LiPo, LiHV, LiFe, Lion, LTO, NiMH, and PB. Select the battery type that matches your actual battery and press [Confirm].

Important:

• Choosing the wrong battery type can damage the battery and charger.
• Do not charge batteries without a clear battery type label.

Nomenclature

• LiPo: Lithium Polymer Battery (Nominal voltage: 3.70V, Fully charged: 4.20V).
• LiHV: High-Voltage Lithium Battery (Nominal voltage: 3.85V, Fully charged: 4.35V).
• LiFe: Lithium Iron Battery (Nominal voltage: 3.30V, Fully charged: 3.60V).
• Lion: Lithium-ion Battery (Nominal voltage: 3.60V, Fully charged: 4.10V).
• LTO: Lithium-ion Battery (Nominal voltage: 2.40V, Fully charged: 2.70V).
• NiMH: Nickel-Metal Hydride Battery (Nominal voltage: 1.20V).
• PB: Lead-Acid Battery (Nominal voltage: 2.00V).

2. Number of Cells

Move the cursor to "Battery Cells" and use the [Scroll Wheel] to modify the number of battery cells. Setting to [Auto] allows the charger to identify the number of cell strings based on the connected battery's voltage. Press [Confirm] to apply changes.

Tips:

• Battery over-discharge or overcharge can lead to incorrect cell number identification. Manually set the correct number of strings if necessary.
• Incorrectly setting the number of cells may prevent charging or cause damage.
• Lixx batteries can be identified more accurately when connected to the balance port.

3. Mode

Modify the working mode. Options include Charge, Discharge, Cycle, and Destroy. LiPo, LiHV, LiFe, and Lion batteries can be used for charging and storage. NiMH and PB batteries can be selected for charging.

4. End Voltage Setting (TVC)

Adjust the end voltage for the battery. When charging, this is the cut-off voltage (range: ±50mV of full voltage). When discharging, it's the discharge cut-off voltage. The adjustment step is 0.01V.

TVC: Terminal Voltage Control.

Tips:

• Only LiPo, LiHV, and LiFe batteries can have their cut-off voltage set.
• Do not modify the cut-off voltage if you are unfamiliar with the battery characteristics.
• The charging cut-off voltage can be set within a range of ±50mV of the full voltage.

5. Charging Current

Move the cursor to [Charging Current] and use the [Slider] or [Scroll Wheel] to adjust the current in 0.1A steps. The charger supports up to 30A.

Tips: Set the charging rate of 1-2C according to the battery capacity. For example, for a 2000mAh battery, set the charging current to 2.0-4.0A. Refer to the manufacturer's guidelines for correct charging instructions.

6. NiMH Setting (PeakV)

When the battery type is NiMH, the PeakV value can be set, with a range of 3mV-15mV.

Tips:

• Only NiMH batteries can have the battery negative pressure value set.
• PeakV: The voltage drop peak value of each cell when the NiMH battery is fully charged.

Charging

When charging starts, the charger enters the working interface. You can view voltage, internal resistance, and dynamically set the working current or stop the process.

Display Content Description:

• 24.0V: Input supply voltage.
• 14.8A: Input supply current.
• 20Wh: Cumulative power consumption of the input power supply.
• 45°C: Internal temperature of the charger.
• 32.23V: Voltage of the main port of the first channel.
• 5.00A: Current of the main port of the first channel.
• 10:59: First channel working hours.
• 2000mAh: Cumulative capacity of the first channel.
• 1 4.200V: First battery voltage.
• 4 4.200V: Fourth battery voltage (Red mark indicates balance management).
• -.--V: No battery connected.

Slide the [Voltage Information] to switch to internal resistance information.

Tips:

• Ensure someone supervises the charging process to safely handle abnormalities.
• When charging lithium batteries, connecting only to the main port does not perform balance management. Connect to the balance port for automatic balance management.
• After charging, unplug the battery and insert a new one to continue charging/discharging based on the set mode. If a fixed number of cells is set, batteries with the same number of cells must be connected. If automatic cell number detection is enabled, verify the detected number matches the actual number.

System Settings

Access system settings by selecting the [Settings icon ⚙️] on the main interface or pressing and holding the scroll wheel for 2 seconds.

Input Settings:

• Input Power: P1, P2, and P3 can be saved and selected. Users can set power, current, and voltage for the input power supply.
• Power Type: Selects the input power supply type. Discharge function can be set to recycling only when the input is set to battery.
• Power Selection: When enabled, prompts to select a power source upon charger startup.
• Max Power: Maximum power drawn from the input port.
• Max Current: Maximum current drawn from the input port during charging.
• Min Voltage: Lowest allowable input voltage.

Charging Safety Settings:

• Safe Inter Temp.: Above this temperature, the device stops main port output.
• Safe Exter Temp.: External temperature limit.
• Safe Time: Maximum continuous charging time. Charging stops if exceeded.
• Safe Capacity: Maximum capacity for continuous charging. Charging stops if exceeded.
• Synchronous Mode: Combines both channels to charge the same battery, with a maximum current of 50A.
• Continuous Operation: After enabling, automatically starts charging the next battery with previous settings after removing a full battery.
• Work Complete: Determines whether to stop or trickle charge when charging is over.
• Balancing Start Voltage: Sets the voltage at which battery balancing begins relative to full voltage.

System Settings (General):

• Backlight: Adjusts display brightness from 1 to 10.
• Operation Vol / Broadcast Vol / Warning Vol: Adjusts speaker volume (high, medium, low, off).
• Language: Changes system display language.
• Theme Style: Choose between Light and Dark themes.
• SD-log: Configures logging interval settings.
• Manual Calibration: Calibrates voltage display values using a voltmeter to match actual battery voltage.
• Default: Restores all settings to factory values.
• ID: Unique ID of the device factory settings.

Other Functions

1. Firmware Upgrade: Connect the M8D to a computer via USB. Download the upgrade file from the official website and copy it to the "Toolkit" USB drive to upgrade the firmware.
2. Automatically Continue Charging: When a battery is fully charged and unplugged, the device will automatically continue charging the next connected battery. This function can be started or stopped in the settings menu.
3. Fan Stepless Speed Regulation: The fan speed increases linearly with internal temperature or power output, becoming quieter at lower temperatures or power levels.
4. USB Fast Charging: The M8D supports USB fast charging protocols (PD, QC, AFC, FCP, SCP, PE, SFCP, VOC) up to 65W via the USB-C port. The 65W USB-C output is available when the input is between 10-36V.
5. Manually Calibrate Voltage: Access this function in system settings. Use a voltmeter to measure the actual battery voltage, move the cursor to the corresponding value, and save the calibration.
6. Fully Charged Replenishment: After "Fast charging has ended", if the battery is not removed, it will automatically trickle charge to a fuller state.
7. Battery Destruction: For disposing of lithium batteries, this function completely drains the battery's voltage to prevent combustion risk from residual voltage.

Warning: This function should not be used during normal battery operation, as it can cause irreversible damage by emptying the battery.

Specification