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Custom 21.6V 22.2V 2200mAh 18650 6s1p Rechargeable Batteries with Sm 2p Connector for Vacuum Cleaner. Custom 18650 6s1p rechargeable batteries capacity can be 22.2V 2200mAh or 2600mAh or 3000mAh or 3500mAh. Battery cell type 18650 quality is stable, total 6 cells layout 3pcs in one line *2 lines Compact size. Charging and discharging connector SM 2P or other type connector can be made.