Best Craftsman V20 replacement batteries
Researched by Deal.ai's shopping agent across stores on November 4, 2026. Prices below are today's.
Top pick: the Craftsman V20 4.0Ah pack (CMCB204). It's the sweet spot for most people — enough runtime for drilling, sawing and cutting without the bulk or weight of a high-capacity pack, and it's the capacity Craftsman builds most of its V20 kits around. Well rated by buyers, too.
Who the others suit:
- 2.0Ah packs — lightest and cheapest way to keep a drill or impact driver running; fine for quick jobs, short on runtime for saws.
- 4.0Ah two-packs — best value if you run several tools or want one charging while one works.
- 6.0Ah high capacity — for circular saws, grinders and long sessions; heavier, and it has a 3-LED charge indicator.
- Starter kit / 2-battery kit — worth it only if you also need a charger or bare tools.
All are genuine 20V MAX lithium-ion and fit the same V20 tools and chargers.
The picks
- #1
Craftsman V20 20V MAX Lithium-Ion 4.0Ah Battery Pack
- Battery capacity: 4.0Ah
- Voltage: 20
- Battery quantity: 2
- Power source: Cordless
- Product height: 2 4/5
- Product length: 4 4/5
