Connecting battery packs in series increases the output voltage while keeping the capacity the same. We'll use this to relate to the physical connections between the batteries that you would use to construct a battery pack. For example, Li-ion batteries can be arranged to achieve higher voltage or greater ampere-hours based on. . The first thing you need to know is that there are three primary ways to successfully connect batteries: The first is via a series connection, the second is called a parallel connection, and the third option is a combination of the two called a series-parallel connection. Some packs may consist of a combination of series. .
[PDF Version]
If you need a 36 - volt system, you can connect three 12 - volt lithium battery packs in series. This flexibility makes it easier to customize the power system for different projects. . When you connect battery packs in series, you're essentially lining them up so that the positive terminal of one battery pack is connected to the negative terminal of the next one. You'll see it in e-bikes, light electric scooters, compact cleaning machines, small AGVs, and different types of portable tools and devices.
[PDF Version]
There's only one effective way to connect them: parallel first (make a block of cells in parallel, then connect blocks in series). The series-first arrangement is problematic due to its many disadvantages. Which way should I use and why? I found this answer that suggest that the way (1) is safer (but the question was about lead-acid. . In the design of the battery modules, whether to connect them in series first and then in parallel or vice versa depends on the specific application and design requirements. For example, Li-ion batteries can be arranged to achieve higher voltage or greater ampere-hours based on. .
[PDF Version]
