Got a DeWalt DCG413B cordless angle grinder. I haven't used it yet but it seems like a great tool. Got it for under 200$ with a 5 AH battery for free. :
DeWalt DCG426N-XJ 18V Li-Ion XR Brushless Cordless Die Grinder - Bare | Bare Units | Screwfix.ie
DeWALT 18V XR 125mm Angle Grinder- Bare Unit (Battery not Included) | Woodie's