Synergy Digital Power Tool Battery, Works with Festool BP12C Power Tool, (Ni-MH, 12, 2100mAh) Ultra High Capacity, Compatible with Festool 486831, BP12C, BPH12C, FS1224 Battery - Walmart.com
FESTOOL 577658 - Battery pack BP 18 Li 3,0 C | Mister Worker™