2pcs XT90 Plug Parallel Battery Connector Cable XT90 Connector Style Parallel Y-Harness for Quadcopters Multirotors RC LiPo Battery Male and Female Connectors. XT90 battery parallel line, used to double the capacity of two batteries in parallel, such as two 3S 11.1V 5000mah battery, can be converted into a 3S 11.1V 10000mah battery.
