How To Connect Lithium Ion Batteries In Series. Second make parallel connectionthen connect led with resistor. They are hard to solder that is why they are welded by spot welder which requires a transformer.
They are hard to solder that is why they are welded by spot welder which requires a transformer. Assuming nominal voltage of 36V per battery each 4-pack will give 144V. Each 4-pack connects four batteries in a serie.
To connect a group of batteries in series you connect the negative terminal of one battery to the positive terminal of another and so on until all batteries are connected you would then connect a linkcable to the negative terminal of the first battery in your string of batteries to your application then another cable to the positive terminal of the last battery in your string to your application.
Assuming nominal voltage of 36V per battery each 4-pack will give 144V. Lithium ion batteries are fully charged at 42V and discharged at about 3 V. During the process of charging and discharging the voltage changes. The series connection of two identical batteries allows to get twice the rated voltage of the individual batteries keeping the same capacity.
