Farra Capacitor Protection Board Balance Board 2.7/16V Lithium Titanate Battery Protection Board with Indicator Light

This is Farra Capacitor Protection Board Balance Board 2.7/16V Lithium Titanate Battery Protection Board with Indicator Light. The Farra Capacitor Protection Board Balance Board is designed specifically for lithium titanate batteries to protect them from overcharging, over-discharging, and balancing the cell voltages. The 2.7/16V rating indicates its operating voltage range, typically used for lithium titanate batteries, which have a lower nominal voltage compared to other lithium-ion chemistries.

The indicator lights on the board usually show the status of the battery, such as charging, fully charged, or any faults in the system. This helps users monitor the battery’s condition and ensure it operates within safe parameters.

These protection boards are essential for ensuring the longevity and safety of lithium batteries, especially given their sensitivity to voltage fluctuations. Always follow the manufacturer’s guidelines and specifications when using these protection boards to ensure proper functionality and safety.

Precautions

• 1. Please test protection boards again before installation. The test of the adjustable regulated power supply (can be replaced by two dry batteries) is as follows: adjust the current value to about 0.5A, adjust the voltage to about 3.0V, and connect the positive and negative electrodes of the assembled batteries to each line in sequence On (don’t worry about reverse connection, there is no current in reverse connection), the LED will light up red.
• Possible failures of the protection board:
• 1) A certain circuit does not turn on when the protection voltage is reached, and the power resistor does not heat up. 2) A certain channel starts to discharge when the protection voltage is not reached, and it may start to discharge as soon as the battery is connected. In the above two situations, please contact customer service.
  2. When the protection board is protected, it will generate a lot of heat. This is the heat generated by the discharge of the battery that exceeds the protection voltage through the transistor and the resistor. If the heat cannot be dissipated in time, it will damage the protection board or the battery. Therefore, the protection board should have enough heat. space to dissipate heat, do not wrap the protective plate with other materials.
• 3. Under normal circumstances, the voltage of a few batteries will exceed the protection voltage in the final stage of charging, so that the heat will be controlled within a certain range. When the indicator light is on, the cell voltage is 2.7V. When more than half of the indicator lights are on, please stop charging, check the voltage of each battery and charger, please check the battery capacity (provided that the initial power of each battery should be controlled at the same level before assembly), you can try a few higher voltages Charge the battery after a part of the battery power is discharged, and check the maximum charging voltage of the charger at the same time (the last stage of the lithium battery charger is constant voltage charging, and the voltage measured at this time can be regarded as the maximum charging voltage of the charger).
  4. If possible, check the battery voltage again after running the battery pack with load for several cycles to ensure that the battery voltage is not much different.

Features

•  This protection board can protect Farad capacitors and lithium titanate batteries and is suitable for Farad capacitors and lithium titanate batteries with a voltage of 2.7V
•  The protection voltage can be fine-tuned within the range of 2.5V-3V by replacing the voltage divider resistor (higher equalizing voltage needs to replace the high-resistance power resistor)
•  The working principle of the circuit is that when the voltage of a single battery/capacitor is higher than the equilibrium voltage, the battery/capacitor is discharged by turning on the transistor inside the circuit, and the excess power is dissipated into heat through the power resistor.
•  The single-piece protection board is suitable for any 1-6S battery/capacitor. When the number of strings is less than 6S, connect it from the negative pole according to the wiring diagram, and leave the extra lines empty.