JUNWOOD 2Pack 20V 3.5Ah Replacement Battery for Craftsman V20 CMCB203 – 70Wh Li-ion

Overview

Meet the JUNWOOD 2 pack 20V replacement battery set designed to power Craftsman V20 tools with steady, dependable performance. Each unit houses 3500 mAh of Li-ion energy, delivering a robust 70 Wh capacity in a compact, balanced package that fits comfortably in hand and in tool bays.

These batteries are built for everyday use in home workshops and job sites, offering a practical upgrade path for DIY enthusiasts and professionals alike. The goal is not a guarantee of outcomes, but a reliable source of energy that helps keep your project momentum going when you need it most.

Key benefits at a glance

• 20V lithium-ion battery with 3500 mAh capacity for longer runtimes between charges
• Broad compatibility with Craftsman 20V tools and chargers including CMCB201 through CMCB206 and the CMCB104 charger
• LED charge indicator to check remaining power and plan downtime efficiently
• No memory effect with high quality cells for dependable, consistent performance
• Integrated protection against overcharge, over-discharge, over-current, over-voltage, and short circuits
• 12 months replacement window plus responsive support for peace of mind

Real world use

In a busy workshop or at a remote job site, the two-pack setup lets you swap spares quickly between tasks. Expect smoother tool operation during framing, decking, drywall, or cabinet work, with less downtime waiting for recharge and more momentum on the job.

Smart usage ideas

• Charge both packs overnight and rotate during long sessions to maximize available runtime
• Keep a charged spare in your tool kit for on-site projects and unexpected needs

Product specifics and compatibility

Designed to fit Craftsman 20V systems, these batteries are compatible with a wide range of CMCB models and the associated charger ecosystem. The form factor mirrors the original, supporting comfortable balance in hand-held tools and reducing fatigue during extended use.

• Voltage: 20V
• Capacity: 3500 mAh
• Wattage: 70 Wh
• Type: Rechargeable Li-ion
• Includes: 2 batteries

Care and reliability

Store in a cool, dry place and use the compatible Craftsman fast charger to restore full capacity. With repeated use across multiple projects, these cells are designed to remain reliable and ready when you need them.

What you get and support

The purchase includes a 2-pack of 20V 3.5Ah JUNWOOD batteries, backed by a 12-month replacement policy and responsive customer support to answer questions within 24 hours.