Li-ion battery pack (08771) 20 v 4.0 ah, with charge indicator, 20 v-b4, 11.8 x 7.4 x 6.7 cm, and battery charger (08772) 20 v 60 w 2.3 a, 100-240 v~ 50/60 hz, with charge indicator, charging time 2.0 ah battery 60 min, 4.0 ah battery 120 min, 5.0 ah battery 140 min, 8.0 ah battery 240 min, 20 v-cb60, 10.3 x 13.4 x 7 cm, fully compatible with the entire koma tools range