Li-ion Battery Pack for XJ-s, compatible with the previous model XJ14.   Nominal Voltage 25.2 V Nominal Capacity 940Wh Proprietary BMS with exclusive SUEX specifications State of Charge Display On-board DRIVe System   With the DRIVe system you can receive the following on your ERON D1 dashboard: Battery state of charge in % Minutes of autonomy remaining at set speed The battery state of charge (SOC) is stored on the D1 and shown as part of the DIVE LOG along with time, depth and temperature. The DRIVe system works with original Suex battery packs only