MIMYTH 21V Battery Replacement for Cordless Power Tools | 3000mAh Li-ion, LED Status

Power that lasts with a true 21V Li-ion battery

The MIMYTH 21V battery is a compact, rugged pack designed to keep cordless tools ready for the next task. At 3000mAh and a 5C discharge rate, it delivers steady power through longer sessions and minimizes interruptions between recharges with dependable consistency.

Seamless compatibility across the MIMYTH ecosystem

Designed to work across our cordless lineup—from pressure washers to pruning shears—the 21V battery slots into original chargers and delivers performance that often surpasses standard replacements. Expect improved power delivery and extended runtime for your favorite tools.

Power status at a glance

The built-in LED gauge makes charge levels visible in real time, helping you plan work and reduce downtime. The gauge, combined with reliable cell chemistry, supports a smoother, more predictable power flow during tasks.

Durable engineering for demanding environments

Encased in a rugged shell, the battery includes safeguards against overcharging, overheating, and short circuits. This thoughtful construction supports reliability when you’re outdoors or in a busy workshop.

Real-world scenarios you might recognize

From a long pruning session in the yard to a quick washing job before a weekend project, this battery is built for extended use. Expect fewer mid-task recharges, allowing you to maintain momentum and stay focused on the job.

What you gain

Key advantages include:

• Extended runtime to cover more tasks between charges.
• Broad compatibility across Mimyth power tools for flexible upgrades.
• Visible LED charge status for proactive planning.
• Rugged build with safeguards to support safe operation.
• Responsive support to assist with setup and usage questions.
• Strong value with durable power that complements your existing kit.

While results can vary with task type and tool model, many users notice steadier power delivery and reduced downtime, helping you complete projects more efficiently without overhauls to your toolkit.