Synergy Digital Power Tool Battery, Compatible with DeWalt DC830 Power Tool, (Li-ion, 14.4V, 3000mAh) Ultra High Capacity, Replacement for DeWalt DC9144 Battery - Walmart.com
Dewalt DCB101 14.4V-18V MAX Lithium Battery Charger For Drill/Sawith Grinder - Overstock - 15961232