New heavyweigh charger being released by Progressive Rc
It can charge at up to 40 amps simultaneously, or combine both channels in parallel to achieve up to 70 amp charge rates!

Sounds very impressive

http://www.progressiverc.com/icharger-4010duo.html

Specifications

• Input voltage range: 9-50V DC
• Input current limit: 65A
• Maximum charge power capacity: 1400W per channel at >23.5V (up to 2000W in synchronous mode)
• Charge current range: 0.05-40.0A per channel, or up to 70A in synchronous mode
• Discharge power capacity: 130W per channel, or up to 200W in synchronous mode
• Maximum regenerative discharge: 1400W per channel, or up to 2000W in synchronous mode
• Maximum external discharge power capacity: 1600W at 40V/40A, or up to 3200W in synchronous mode
• Current drain for balancing: 1.2A per channel, or up to 2.4A in synchronous mode
• Balance accuracy: 10mV
• LiPo/LiIo/LiFe: 1-10 series per channel
• NiCd/NiMH battery cell count: 1-25 series per channel
• Pb battery cell count: 1-18 series (2-36V) per channel
• PC Connectivity: USB port
• Weight: 1470g
• Dimensions (LxWxD): 210x140x80 mm
• Warranty: 1 year