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The Craftsman V20 CMCB204 is a 4 Ah lithium-ion pack for the V20 cordless tool and outdoor lineup. It roughly triples the capacity of the compact 1.5 Ah packs that ship with many V20 kits, so heavy jobs like sawing and string trimming run longer between swaps. A 3-LED gauge shows charge at a glance, and the cells are rated for longer cycle life with no memory effect. Against third-party V20-compatible packs it is the safer fit for warranty and tool compatibility, though it is a single pack, not a kit with a charger.
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Owners of V20 tools generally report the 4 Ah pack as a solid runtime upgrade over the compact batteries in kits. Some note the extra weight and that it is a battery only.
The Craftsman V20 CMCB204 is a 20V MAX lithium-ion battery pack with a 4.0Ah capacity. It offers up to 3x the capacity of the standard 20V MAX lithium battery and is made for heavy-duty jobsite use.
It uses professional grade, high-energy cells for improved power. The cells have a longer cycle life, which extends battery life. The battery has no memory and virtually no self-discharge.
A 3-LED state-of-charge indicator shows the charge level at a glance. The pack works with the Craftsman V20 cordless power tool and outdoor tool lineup.
