lithium battery 18650 3.7v

　　Things to note when connecting lithium battery 18650 3.7v in series and parallel

　　Reasons for parallel and series connection of lithium iron phosphate batteries

　　Connect multiple lithium iron phosphate cells in a lithium battery pack to obtain the required standard operating voltage. If you just need a higher capacity and a larger current, you should first connect the lithium battery 18650 3.7v in parallel. The requirements of high voltage and high capacity can be achieved by combining the two methods of series connection and parallel connection.

　　In order to get more power, several batteries can be combined together. An alternative to paralleling batteries is to use larger rechargeable batteries, which is not suitable for all applications due to the limitations of rechargeable batteries. Additionally, large rechargeable batteries do not fit into the design specifications of a particular type of battery.

　　Most battery chemistries can be used in series, while lithium battery 18650 3.7v are suitable for series applications. In the design scheme, it is very convenient to adopt the series and parallel connection method, which can achieve the rated current and current required by the standard rechargeable battery specifications.

　　Things to note when connecting in series and parallel

　　1. Internal resistance layer: In lithium phosphate rechargeable batteries, the internal resistances are widely separated, the charge and discharge capacity is good, and there is no need to charge and discharge immediately. Therefore, for lithium ions with small internal resistance, it is not good to expand the series.

　　2. A single lithium-ion battery is ineffective: Connecting several lithium-iron-phosphate batteries in a lithium-ion battery pack can obtain a high standard operating voltage. However, in order to pursue perfect operating voltage and current, many lithium-ion series and parallel circuits have been developed, and this high-voltage lithium-ion battery can easily encounter lithium-ion batteries in ineffective situations. It is not easy to remove lithium phosphate rechargeable batteries. It is easy for new and old user rechargeable batteries to mismatch because the capacity of new batteries is much higher than that of old batteries.

　　3. Lithium battery protection board: protect the circuit in the case of series and parallel connection, lithium battery protection board, in the case of series and parallel connection. Because the lithium-ion battery protection board can be used to monitor the status of each battery in series. Applying Li-ion series in parallel sounds simple, but it's easy to follow some simple standards to prevent unnecessary problems.

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