How to use power cell and digital cell in parallel
Power battery cells and digital battery cells are two different kinds of battery cells for different purposes.
Mar 17,2025
I. Difference between power cell and digital cell
Power battery cells and digital battery cells are two different kinds of battery cells for different purposes. Power batteries are generally used to drive high-power electrical appliances, such as power tools, electric cars, etc., while digital batteries are mainly used for digital products, such as cell phones, tablet PCs, cameras, etc.
Their differences mainly lie in the following aspects:
1. Different shapes of battery cells: the shape of power battery cells is generally cylindrical or square, while the shape of digital battery cells is smaller, generally square or rectangular.
2. The capacity of the battery cell is different: the capacity of the power battery cell is generally larger, up to several thousand milliampere hours, while the digital battery cell capacity is smaller, in a few hundred milliampere hours or so.
3. Different output voltage of battery cell: the output voltage of power battery cell is generally between 3.2V-3.7V, while the output voltage of digital battery cell is generally 3.6V-4.2V.
II. How to use the power battery cell and digital battery cell in parallel
If you need to use the power battery cell and digital battery cell in parallel, you need to pay attention to the following points:
1. Voltage matching: Since the output voltages of the two types of batteries are different, you need to make sure that their output voltages are the same when connecting them in parallel, in order to avoid circuit failures or over-discharge of the batteries.
2. Capacity matching: When using the battery cells in parallel, it is necessary to pay attention to whether the capacity of their battery cells matches. As the power core is generally larger capacity, so in parallel need to pay attention to whether the capacity of the digital core is enough to avoid overloading the digital core.
3. Parallel connection: In general, the parallel connection of power cells can be realized by series connection, i.e., the positive pole of two power cells is connected, and the negative pole is connected. Parallel connection needs to pay attention to the stability of the circuit, in order to prevent the circuit from short-circuiting.
4. Protection circuit: when the parallel use of battery cells, you need to pay attention to whether the circuit is equipped with a protection circuit. The protection circuit can effectively protect the safe use of the battery cell to avoid over-discharge or over-charge of the battery cell, thus extending the service life of the battery cell.
In short, if you need to use power and digital batteries in parallel, you need to pay attention to voltage matching, capacity matching, parallel connection and protection circuit to ensure the safety and stability of the circuit.
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