[4.0Ah Compact Runtime Upgrade] Double the runtime of standard 2.0Ah packs while maintaining a maneuverable, lightweight profile. Ideal for users who need extended power for long DIY projects without the excessive weight of bulky high-capacity batteries. [Full V20 System Compatibility] 100% compatible with the entire CRAFTSMAN V20 cordless tool and outdoor equipment line. Perfectly replaces CMCB204, CMCB202, and CMCB201 batteries while working with original CMCB104 and CMCB124 chargers. [Advanced Lithium-Ion Safety] Built with high-density cells and an integrated Smart BMS (Battery Management System). Provides 8 layers of protection against overcharging, overheating, and short-circuits to maximize the lifespan of your tools. [Reduced Tool Fatigue] Specifically designed for overhead drilling, repetitive fastening, and all-day use. This compact 4.0Ah pack keeps your drills and impact drivers balanced and easy to handle in tight spaces. 【BatPower Professional After-Sales】We offer 2-year warranty, 30-day free return & 7×24h technical support for this 1-Packbattery; dedicated to providing reliable power solutions for professional users, buy with confidence.

Balanced Power for Every Task: BatPower 4.0Ah High-Performance V20 Replacement Battery

The BatPower 4.0Ah lithium-ion replacement battery is the perfect mid-range power solution for your Craftsman V20 cordless tool collection. Engineered to provide the ideal balance between extended runtime and lightweight maneuverability, this battery allows you to work longer and faster. It is the go-to choice for handheld tools where maintaining a comfortable tool weight is just as important as having enough power to finish the job.

Efficient Performance for Home and Jobsite:

• 4.0Ah Reliable Capacity: Delivers up to 2x the runtime of standard 2.0Ah compact batteries, ensuring you can complete more drilling, driving, and fastening tasks on a single charge.
• Seamless V20 Compatibility: Precision-engineered to be 100% compatible with the Craftsman V20 system, replacing models CMCB204, CMCB202, CMCB201, and CMCB203.
• Premium Lithium Cells: Built with high-quality cells featuring no memory effect and low self-discharge, ensuring your tools stay ready for work even after months of storage.

Advanced Smart Safety Protection:

Equipped with an Integrated Smart-Chip BMS (Battery Management System), this battery protects against over-charging, over-heating, over-voltage, and short-circuiting. The advanced protection circuitry ensures stable power delivery and long-term battery health, protecting both the user and the tool.

Ergonomic & Durable Design:

• Integrated LED Fuel Gauge: Features a built-in 3-LED power indicator so you can check your remaining runtime at the touch of a button.
• Lightweight Profile: Specifically designed to minimize user fatigue during overhead work or extended sessions with cordless drills, impact drivers, and work lights.
• Secure Click-In Fit: Precision-molded to ensure a tight, wobble-free connection in all compatible V20 power tools and original chargers (CMCB104, CMCB124).

What's in the Box: 1 x BatPower 4.0Ah V20 Lithium-Ion Replacement Battery; 1 x User Manual. (Please note: This is a high-quality replacement product, not an original OEM part. Charger is not included.)