CRAFTSMAN CMCB204-2CK 20V Battery 2-Pack, 4Ah Lithium-Ion with Charger

When a cordless tool is ready for the next job, having a charged battery on hand helps keep your setup moving. The CRAFTSMAN CMCB204-2CK pairs two 4Ah lithium-ion batteries with a CMCB104 charger, giving you a practical battery-and-charger set for the CRAFTSMAN V20 20V MAX cordless power tool and outdoor tool lineup.

Each pack has a three-LED state-of-charge indicator, so you can check its charge at a glance. The rechargeable cells have no memory and virtually no self-discharge, making the set useful for regular jobs as well as tools you bring out when needed.

Tips for day-to-day use

Keep one battery in use while the other is charging, or move the packs between compatible V20 tools as your work changes. For example, a battery can stay with a cordless tool while the second is ready for the next task, the included charger gives the set a place in your regular work routine. Check the three-LED indicator before starting to see the battery’s state of charge.

The pack is rated at 20 volts and 4Ah. Its lithium-ion cell composition and rechargeable design make it a suitable replacement or additional battery set for compatible CRAFTSMAN V20 tools. Need a setup that can support more than one tool across a work session? Having two packs and a charger offers a different approach from buying a single replacement battery, with another pack available for rotation.

What you’ll notice day to day

The charge indicator makes it easier to check battery status without relying on guesswork. The batteries’ no-memory design and very low self-discharge are useful qualities for a set that may be used across different jobs and stored between projects. Compatibility with the CRAFTSMAN V20 20V MAX cordless power and outdoor tool lineup also lets you use the packs across supported tools in that system.

Buyers particularly highlight battery life, power, and day-to-day performance. Some also mention using the batteries with higher-power outdoor tools such as a blower or branch trimmer. These are customer impressions rather than a performance guarantee, but they point to the kind of tool use people associate with the set.

Key takeaways

The package contains two CMCB204 4Ah batteries and one CMCB104 charger. Each battery is a rechargeable 20V lithium-ion pack with a three-LED charge indicator. The no-memory design and virtually no self-discharge suit a routine where batteries may be used regularly or kept ready between jobs. For a planned project, charge the packs ahead of time and use the indicator to check their status before heading out.

If you’re choosing between a single replacement pack and a coordinated set, this option brings two batteries and a charger together. It’s a great fit if you already use compatible CRAFTSMAN V20 tools and want additional battery capacity for tool rotation or outdoor work.

Buying verdict

The CMCB204-2CK is a straightforward choice for CRAFTSMAN V20 users who want two 4Ah batteries and a compatible charger in one set. Its charge indicator helps with quick status checks, while the rechargeable lithium-ion design, no-memory feature, and virtually no self-discharge support a useful everyday setup. It’s especially suited to keeping compatible power and outdoor tools supplied with batteries for changing tasks.