Ultraxxis Upgrade 2-Pack 20V 8.0Ah Batteries — Replacement for Craftsman 20V MAX CMCB204/202/201

Overview

The Ultraxxis Upgrade 2-Pack delivers two high-capacity 20V lithium-ion batteries designed to power Craftsman 20V MAX cordless tools with reliability and ease. Each battery packs 8.0Ah (8000mAh) and 160Wh, offering a balance of power and manageability for a range of DIY and professional tasks. The lightweight design helps keep fatigue in check during longer projects, while the modern chemistry avoids the memory effect associated with older packs.

Compatibility and what’s included

• Two 20V 8.0Ah lithium-ion batteries ready to power Craftsman V20 system tools.
• Compatible with Craftsman CMCB204, CMCB202, and CMCB201 tools, as well as the Craftsman CMCB104 charger.
• All-around upgrade with no memory effect and a compact footprint for easy transport.

Performance and potential you may notice

• Up to approximately four times longer run time in suitable applications compared with traditional Ni-Cd packs.
• Lower weight helps reduce user fatigue during extended jobs, enabling smoother handling of drills, impact drivers, and saws.
• Integrated microchip delivers overcharge and short-circuit protection, contributing to safer operation and longer life.
• LED indicators provide a quick visual charge status, so you can plan your next steps with confidence.

Real-world use cases

Ideal for home renovations, woodworking, fencing, painting, and on-site maintenance. The 2-pack design makes it convenient to swap batteries during multi-stage projects, minimizing downtime and keeping work moving forward. The high-capacity cells lend themselves to use across compatible tools for longer continuous operation without frequent recharges.

Quality and support you can rely on

Ultraxxis emphasizes safety and standards with CE, FCC, and RoHS certifications. If you encounter any issue, our team aims to address concerns promptly to ensure your satisfaction and continued tool uptime.