You may "Network" connect 20 EOS610i's together, using option cable HP-EOS6-MSC. In this case, you can charge 2 separate but similar Lipo,  Lion, oe A123 packs as a single unit, to make flight packs from 7S to 12S at  500W max charge power.

Features

• Charges: 1-6 cells Lipo's, Lion & A123, 1-16 cell Ni-CD & Ni-MH, and Pb batteries in three modes: Normal, Linear & Automatic.
• Built-in Hyperion LBA10/300 Balancer with 10A max rating and 300mA max balance rate per cell.
• 0.1a - 10A Charge Current in 0.1a steps
• 250 Watts max charge output (Even with 6s Lipo)
• Terminal Capacity Selection (TCS)
• Rich Data Displays during and after charging and discharging
• PC Port for data logging and firmware updates
• Temperature Sensor Port
• Wide Voltage Range 11v~28v for higher efficiency when charging high voltage packs, and compatibility with a wider selection of AC/DC Power Supplies
• Power Supply Amperage Control to allow reliable charging with lower output power supplies
• Input Cable with 4mm male connectors
• Integral, Thermostat-Controlled Cooling Fan
• Rugged Aluminum Case with Insulating End Caps
• 2-Line, 16-Char, Blue Backlit LCD Data Display
• 10 User-definable Memory Positions

SKU: HP-EOS610I