Heng Long have changed the type of connector used on their tanks. New tanks now use a XT60 connector but older versions use a Tamiya connector.
Heng Long Tank Battery LiIon 2S 7.4V 1800mAh w/ XT60 Connector Plug
For Heng long upgrade 7.4v 6800MAH 3.7 x long lasting LI-ION xt 60
Heng Long upgrade + USB Charger Li-Ion 2S 7.4V 6800mAh XT60 3.7 X more time
Heng Long upgrade +USB Charger Lith ion 7.4V 6800mAh Tamiya Plug 3.7 x more
Heng long upgrade 7.4 v 3.7 x longer lasting LI-ION 6800Mah Tamiya 2p
Heng Long Tug Work Boat USB Charger HL3810-005
