From Vampire Racing:
Available now from Vampire Racing is the 2S all-black charging lead in long configuration. The 60cm long charging harness comes pre-assembled with 4mm gold-plated bullet-type connectors and an XH balancer on the charger side and and 4/5mm dual plug and a 2mm balance connector for the battery side which allows to charge 2S LiPo packs with both industry-standard 4mm connector tubes as well as the newer batteries with 5mm tubes.
VR-5924 – Vampire Racing 2S All-Black Charging Lead -Long- (4/5mm Dual Plug,XH)