How to Balance Lifepo4 Batteries Connected in SeriesBenefits of Balancing Batteries Before Connecting The SystemHow to Balance Batteries Before Connecting in SeriesHow Often Should I Balance My System with This MethodWarningLinking 12-volt batteries in series provides a convenient method for constructing higher voltage battery systems, such as 24V, 36V, and 48V. It is advisable to balance the batteries in series, also referred to as voltage matching, by charging each battery individually prior to linking.See more on epochbatteries NXP Semiconductors
Active Cell Balancing in Battery Packs - NXP Semiconductors
This circuit consists of a power resistor connected in series with a control MOSFET transistor. This method can be used for all types of batteries, but is effective for a small number of cells in series.