The 25A 3S Lithium Battery 18650 Charger PCB is a powerful and reliable device for charging your lithium-ion batteries. This device is designed for a 3 series 18650 battery and has a rated voltage of 11.1V (Li-ion 18650) or 10.8V (Li-ion battery pack). The full charge voltage of the Li-ion battery is 12.6V. The lithium battery protection board is not included with this product, but can be purchased separately.
The BMS activation method for this device is simple – just use a 12.6V Li-ion charger to charge it. However, it is important to note that this device is not suitable for high-power electronic tools such as screwdrivers, drills, electric bikes, fishing machines, or 1W LED. If you plan on using this device for any of these applications, it is not recommended that you purchase it.
Additionally, it is important to note that this device is not suitable for devices that have a discharge rate of more than 3A. A 1C rated battery with a capacity of 2000mAh can handle a maximum working current of 2A, while a 3C rated battery can handle a maximum working current of 6A. The balancer is an auxiliary function that ensures that all cells in a battery pack have the same voltage level when charging.
One of the key features of this device is its high-accuracy voltage detection circuit. The terminal of the charger is equipped with a high voltage device for added protection, and it also has a built-in three-stage over-current detection circuit to protect against over-current, load short circuit, and other potential problems. The MOS transistor can control the battery charge and discharge process, and the device has a low standby current consumption.
The overcharge voltage for this device is 4.25-4.35V ±0.05V, and the over-discharge voltage is 2.3-3.0V ±0.05V. The maximum working current for this device is 25A, with a maximum peak current of 35-40A. The device has a working temperature range of -40 to +50 and a storage temperature range of -40 to +80. The small current consumption of this device is 50uA, and it has a life cycle of more than 30,000 hours. The resistance is less than 100mΩ, and the device is protectable against short circuits. Finally, the size of this device is 56mm x 45mm x 4.0mm.
In conclusion, the 25A 3S Lithium Battery 18650 Charger PCB is a high-quality and reliable device for charging your lithium-ion batteries. With its advanced features, such as the high-accuracy voltage detection circuit and the built-in over-current protection, this device provides excellent protection for your battery and ensures that it is charged properly and efficiently.