I used lithium polymer battery from old macbook batteries. Powerbank body for h913-a v2.0. I printed this model with white PLA plastic from rec3d. Printer: picaso 3d designer pro 250 Preferences of printing: nozzle 0.3, layer 0.15 Корпус для павербанка на китайской микросхеме h913-a v2.0.