ToolkitRC M8D Dual Smart Charger

Introduction

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

Key Points

• ? Tips
• ❗ Important
• ? Information

Further Information

To ensure you have the best experience with this product, please visit www.toolkitrc.com for news, information, and firmware updates for your charger.

Safety

1. The 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, capacitive touch screen, and a roller encoder for convenient operation. It supports charge, discharge, and balance management for various battery types:

• LiPo, LiHV, LiFe, Lion, LTO (1-8S)
• NiMH (1-20S)
• PB (1-15S)

Key specifications include:

• DC Power Supply: 10.0-49.0V MAX 1600W
• Charging Power: MAX 30.0A @MAX800W*2 (ASYN), MAX 50.0A @MAX1600W (SYNC)
• Discharging Power: MAX 10A@40W*2 (Normal), MAX 30A@800W*2 (Recycle)
• Charging Accuracy: <0.005V
• Balancing Current: 2000mA
• Built-in 65W USB-C fast charger
• Lithium battery cut-off voltage (TVC) is settable
• Automatically allocates input power
• Multi-language system (supports 11 languages)
• Can record 10 commonly used batteries
• Can record 3 groups of commonly used power sources

M8D Layout

Front View

The front of the M8D features a Display/Touch panel, two Main ports, two Balance ports, and a Scroll wheel. There is also a CH/Exit button.

Back View

The back of the M8D includes a DC input XT90 port, a USB A/C output port, and cooling fans.

Quick Start

1. Connect the device to a DC 10-49V power source.
2. The screen will display the boot logo for 2 seconds, accompanied by an audible tone.
3. After booting up, the screen enters the main interface.
4. From the main interface, use the Scroll Wheel to select a function and press the Scroll Wheel to confirm.
5. Touch the Settings icon ⚙️, or press and hold the Scroll Wheel for 2 seconds to enter system settings.
6. Touch the [Info] button, or scroll the Scroll Wheel to select it, to display the voltage and internal resistance for the corresponding channel.
7. Touch [Status], or short press the Scroll Wheel to select [Status], to choose the charging task when the channel is idle. You can adjust and end the work while the channel is active.
8. Press the [Exit Button] to end modifications or return to the previous interface.

Control Functions:

• Short press [Scroll Wheel]: Confirm function.
• Long press [Scroll Wheel] for 2 seconds: Delete key function.
• Successful key operation: Indicated by a 'didi' sound.

Charging Settings

1. Battery Type

In 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. The interface will display saved battery records. If not enabled, it defaults to the first battery record.

To set up a new battery or modify an existing one, select the desired battery record or press [New Battery]. This opens the battery setting interface.

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] to save and return to the previous page.

❗ Important:

• Choosing the wrong battery type for charging may damage the battery, charger, or cause burns. Ensure you select the correct type carefully.
• Do not charge batteries that are not labeled with a battery type.

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', short press the Scroll Wheel to modify the number of battery cells. The display shows options like Auto, 1S, 2S, 3S, etc.

When set to [Auto], the charger automatically identifies the number of cell strings based on the connected battery's voltage. Press [Confirm] to save and return to the previous page.

? Tips:

• Accessing battery over-discharge or overcharge may lead to incorrect cell string identification. Manually set the correct number of strings if this occurs.
• Incorrectly setting the number of strings may prevent charging or cause overcharging damage. Be careful with these settings.
• Lixx batteries can be identified more accurately when connected to the balance port.

3. Mode

Modify the working mode (e.g., Charge, Discharge, Cycle, Destroy). LiPo, LiHV, LiFe, and Lion batteries can be selected for charging and storage. NiMH and PB batteries can be selected for charging. Press [Confirm] to save and return to the previous screen.

4. End Voltage Setting (TVC)

Move the cursor to [End Voltage] to modify the end voltage of the battery. For charging mode, this is the cut-off voltage (range ±50mV of full voltage). For discharging mode, it's the discharge cut-off voltage. The adjustment value increments by 0.01V.

❗ Important:

• 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.
• TVC is an abbreviation for Terminal Voltage Control.

5. Charging Current

Move the cursor to [Charging Current] and use the slider or Scroll Wheel to adjust the current in 0.1A steps. Scrolling quickly increases/decreases the value faster. The charger supports up to 30A.

? Tips:

• Please 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. Consult your battery manufacturer's guidelines for correct charging instructions.

6. NiMh Setting (PeakV)

When the battery type is NiMH, the PeakV value can be set. The setting range is 3mV-15mV.

? Tips:

• Only NiMH batteries can have the battery negative pressure value set.
• Vocabulary Explanation: PeakV: When the NiMH battery is fully charged, this is the voltage drop peak value of each cell.

Charging

When charging starts, the charger enters the working interface. You can view voltage and internal resistance information by selecting the [Info] button. The [Status Bar] allows dynamic adjustment of working current or stopping the operation.

To end charging or discharging, select [Channel 1 - Stop] to return to the main interface. A prompt sound and box will appear upon completion or error.

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.
• 4.200V: First battery voltage.
• 4.200V (Red mark): Fourth battery voltage, indicating balance management is active.
• -.--V: No battery connected.

Sliding the [Voltage Information] switches the display to internal resistance information for each cell.

? Tips:

• Ensure someone is supervising the charging process to safely handle any abnormalities.
• When charging a lithium battery via the main port only, balance management is not performed. Connect to the balance port for automatic balance management.
• After charging is completed, unplug the battery and insert a new one; the device will automatically continue charging/discharging based on the set mode. If a fixed number of cells is set, connect batteries with the same cell count. If automatic detection is enabled, verify the detected cell number matches the actual number.

System Settings

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

Input Settings

Configure input power 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: Select the type of input power supply. Discharge function can be set to 'Recycling Only' when input is set to 'Battery'.
• Power Selection: When enabled, the charger prompts you to select a power source upon startup.
• Max Power: Maximum power absorbed from the input port during charging.
• Max Current: Maximum current drawn from the input port during charging.
• Min Voltage: Lowest allowable input voltage.

Charging Safety Settings

Configure work-related security settings:

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

Other System Settings

• Backlight: Brightness level from 1 to 10.
• Operation Vol / Broadcast Vol / Warning Vol: Set speaker volume to high, medium, low, or off.
• Language: Change system display language.
• Theme Style: Choose between Light and Dark themes.
• SD-log: Configure logging interval settings.
• Manual Calibration: Calibrate voltage values for the two channels by measuring actual battery voltage with a voltmeter and adjusting the displayed value.
• Default: Restore all settings to factory values.
• ID: The unique ID of the device's factory settings.

Other Functions

1. Firmware Upgrade: Connect the M8D to a computer via USB. Download the upgrade file (app.upga) from the official website, copy it to the recognized 'Toolkit' USB drive, and overwrite existing files.
2. Automatically Continue Charging: When a battery is fully charged, unplug it and connect the next battery; the device will automatically continue charging. This function can be started or stopped in the settings menu.
3. Fan Stepless Speed Regulation: When the internal temperature exceeds 43°C, the fan speed increases linearly with temperature or power, reducing noise at lower temperatures or power levels.
4. USB Fast Charging: The M8D supports USB fast charging protocols up to 65W via the C port, including PD, QC, AFC, FCP, SCP, PE, SFCP, VOC.
5. Manually Calibrate Voltage: In system settings, access manual voltage calibration. Use a voltmeter to measure the actual battery voltage, move the cursor to the corresponding value, and adjust it to match the voltmeter reading. Save the calibration.
6. Fully Charged Replenishment: After 'Fast charging has ended' for a lithium battery, if it remains connected, it will automatically trickle charge at a constant voltage to reach 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:

• The battery destruction function should not be used during normal battery operation, as it can empty the battery and cause irreversible damage.

Specifications