ProTek R/C 2S Charge/Balance Adapter (Deans Plug to 4mm Bullet)
This adapter is designed for 2S Li-Poly hard packs that use two 4mm bullet connectors for the main power connection, and a 2mm bullet connector for the balance connector. This adapter has bullet connectors on the battery end, a female ultra plug to attach to your charge lead, and a Align style balance connector to connect to your balancer on the other end.
