18v 18000mah Li-ion Battery Replacement Power Tool Battery For Makita Bl1880 Bl1860 Bl1830+3a Charger - Rechargeable Batteries - AliExpress
DEWALT 18-Volt 2-Pack 2.4 Amp-Hour; 2.4 Amp-Hour Nickel Cadmium (Nicd) Power Tool Battery Kit in the Power Tool Batteries & Chargers department at Lowes.com