Bosch Brand :
GBH 36V LI : 36V, 4 Ah, Drilling dia in concrete 4-28mm, 2 Battery + 1 charger, Weight 4.5kg

Dewalt Brand :
DCH253M2 : 18V, 3 mode variable speed, Reversible, Lithium Ion Battery, 2.1 Joules, Weight 8kg

Chinese Brand :
36V, Heavy duty quick change SDS plus Rotary Hammer, Ideal for drilling anchors and fixing holes in concrete, brick and masonry