Those Thunder monkey's can take the 40A charge rate. If my cheapy Acepow can do it, than the Thunderpower surely can as well. I charge my Acepow's at 30A at home and 40A at work, twice a day, 6 days a week with the Powerlab. The charger never complains.
Building batteries is much easier now. Matching cells is easy to do with the Ohms readout and capacity gauge.
Batteries get warm when discharged at a high rate. Charging them at a high rate does not. ex: Discharging those laptop cells at 5A(2p config) gets them way to hot. Charging them at 7A and the temps are way lower.
pic of me building battery packs from laptop batteries using the Powerlab and pc interface.