Series, Parallel and Series-Parallel Connection of Batteries - Diagrams
Battery Help : ElectricScooterParts.com Support
Series Parallel — Better Battery Design
Amazon.com: power queen 2 Pack 12.8V 100Ah LiFePO4 Battery, Built-in 100A BMS, Lithium Battery 2560Wh, Up to 15000+ Cycles, Support in Series/Parallel, widely Used for Solar Home System, RV, Off-Grid Life :
Lithium Ion Batteries in Series vs Parallel Configuration: All Details to know