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4 FAQs about 3 7V lithium battery pack series and parallel connection

Are series and parallel connection of lithium batteries safe?

The series and parallel connection of lithium batteries is a key technology to increase voltage and capacity, but it also contains safety risks. This article will analyze in detail the principles, methods and precautions of series and parallel connection of lithium batteries to help you avoid potential risks and build a battery system correctly.

How to connect lithium batteries in parallel?

Connecting lithium batteries in parallel keeps the voltage the same while increasing the total capacity and runtime of the battery pack. Gather Materials: Prepare your 3.7V 100mAh lithium cells, connecting wires, a soldering iron, and safety gear. Identify Terminals: Locate the positive (+) and negative (-) terminals on each battery.

How many volts can a 3.7V lithium battery get?

For example, 4 pieces of 3.7V lithium batteries connected in series can get an output voltage of 14.8V, but the capacity remains unchanged. Series connection is the most common method to make the battery pack reach the required operating voltage. Series connection is the best choice when you need more voltage rather than more capacity.

What is a series parallel battery connection?

Part 3. Understanding batteries connecting in series-parallel A series-parallel connection combines both configurations to increase both voltage and capacity. For example, connecting four 3.7V 100mAh lithium cells in a series-parallel setup (two sets of series connections linked in parallel) will give you 7.4V and 200mAh.

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