Rechargeable Li‑Ion Battery Dremel 261512V3JA 3 Ah 12 V for cordless tools

The Rechargeable Li‑Ion Battery Dremel 261512V3JA 3 Ah 12 V is a replacement battery designed to restore or extend runtime for compatible Dremel cordless tools. Compact and lightweight, this 12 V lithium‑ion battery delivers steady power for light to medium tasks and is intended for quick swapping during DIY projects and workshop jobs. The battery chemistry ensures low self‑discharge and consistent output throughout the charge cycle, helping maintain tool performance across sanding, cutting and drilling operations.

Advantages

This 3 Ah Li‑Ion battery provides longer runtime compared with lower‑capacity cells while maintaining a compact form factor that fits standard Dremel 12 V tool mounts. The lithium‑ion construction offers stable voltage under load and reduced memory effects, which helps preserve usable capacity after repeated charge cycles. Lightweight design and standardized contacts enable fast replacement and compatibility with a range of cordless Dremel tools for home and professional tasks.

Suitable for

• Handheld sanding and polishing jobs
• Light cutting and trimming with rotary accessories
• Drilling in wood, plastic and thin metal sheets
• Workshop maintenance and small repair tasks
• Replacing worn or lower‑capacity batteries in 12 V Dremel tools

Key specifications

• Battery type: Lithium‑ion (Li‑Ion)
• Nominal voltage: 12 V
• Capacity: 3 Ah (3000 mAh)
• Typical applications: cordless rotary tools for sanding, cutting, drilling
• Physical characteristics: compact, lightweight design for handheld tools

How to use

Before first use, charge the battery fully in a compatible charger recommended by the tool manufacturer. Insert the battery into the tool’s battery slot until it locks into place, ensuring contacts are aligned and clean. Operate the tool within the specified speed and load parameters for the accessory in use. After use, remove the battery if the tool will be stored for an extended period and store the battery in a cool, dry place at partial charge for longer shelf life. Follow the tool and charger manufacturer instructions for safe charging and handling.

Recommendations

To maximize service life, avoid exposing the battery to extreme temperatures, deep discharges, or prolonged storage at full charge. Use the battery with compatible Dremel 12 V cordless tools and chargers, and replace only with batteries that meet the same chemistry and voltage specifications.