Charge 2 3S XH Batteries With This Adapter

Pro-Peak Dual Battery Adapter 3S XH O-IPTW3SXH

Allows balance charging of two 3S battery packs with XH connectors at the same time on a single battery type charger by treating them as a single 6S pack. The batteries should be as near to the same capacity as possible or the charging process will be very long. This is because the smaller pack will peak first and then the charger can only charge the second pack at the maximum bleed voltage that the charger allows.