Used Milwaukee 48-11-2401 M12 Lithium 12-volt 1.3A Lithium-ion Cordless Tool Battery 1.3-amp hour battery Lightweight- over 65-Percent lighter vs. "compact" NiCd batteries 6 months warranty,Ergonomic- compact and lightweight design for operator comfort Lithium-ion battery delivers longer life and run-time with fade-free power It's usually 15-30days for delivery with tracking number.