Battery & charger set Stanley FATMAX SFMCB12D2-QW

The Stanley FATMAX SFMCB12D2-QW battery & charger set combines a 20 V rechargeable battery with a dedicated charger to supply consistent power to compatible cordless tools. With a 4 Ah capacity, the battery balances runtime and portability to support extended work sessions without frequent interruptions. The charger is designed for efficient energy transfer and safe charging, helping to maintain battery health and prolong service life.

Advantages

The 4 Ah battery delivers longer run times compared with lower-capacity cells, reducing the need to swap batteries during tasks. The 20 V voltage rating matches a wide range of cordless tools, providing stable output for drills, impact drivers and saws. The included charger supports faster recharge cycles than basic chargers and incorporates protective features to prevent overcharging and overheating, contributing to safer operation and improved battery longevity.

Suitable for

• General construction and renovation work with cordless tools
• DIY home projects requiring sustained power
• Portable tasks where mains power is not available
• Professional trade use as a spare or replacement battery

Key specifications

• Nominal voltage: 20 V
• Capacity: 4 Ah (ampere-hours)
• Battery chemistry: rechargeable lithium-based cell
• Typical applications: cordless power tools such as drills, drivers and saws
• Charger type: dedicated fast charger with thermal and overcharge protection
• Physical form factor: compact pack compatible with the brand’s 20 V system

How to use

Insert the battery into a compatible Stanley FATMAX 20 V tool until it clicks into place. Before first use, fully charge the battery using the supplied charger following the charger’s indicator lights. During operation, monitor tool performance and swap to a charged battery when runtime decreases. After use, return the battery to the charger for charging and store both battery and charger in a dry, ventilated area away from direct heat or prolonged sunlight.

Usage recommendations

For optimal performance and extended battery life, avoid exposing the battery to extreme temperatures, charge it after each major use rather than fully depleting it regularly, and use the supplied charger designed for the battery pack. Keep contacts clean and dry and store the battery at moderate charge if it will not be used for extended periods.