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M12 12V 1.5Ah High Output Battery Replacement for Milwaukee

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Summary of M12 12V 1.5Ah Rechargeable Lithium Batteries​

A compact, lightweight, eco-friendly, and high-performance rechargeable battery engineered for professionals who demand reliability. With low internal resistance, excellent thermal control, up to 500 deep cycles, and a rugged protective housing, it delivers stable power across wide temperature ranges while ensuring long service life and strong tool compatibility.

12V 1.5Ah Battery for Milwaukee M12 Parameters

Model: CPPT1215

Battery Type: Lithium Batteries Rechargeable Batteries​

Nominal Capacity: 1500mAh

Nominal Voltage: 12V (11.1V)

Energy: 18Wh

Charge Cut-off Voltage: 12.6V

Discharge Cut-off Voltage: 8.4V

Standard Charge Current: 0.2C (300mA)

Max Charge Current: 1C (1500mA)

Standard Discharge Current: 0.2C (300mA)

Max Continuous Discharge Current: 15C (22.5A)

Max Peak Discharge Current: 30C (45A)

Cycle Life: More Than 500 Times

Dimensions: 46 × 48 × 86 mm

Weight: 204g

Charge Temperature Range: 0°C to 45°C

Discharge Temperature Range: -20°C to 65°C

Storage Temperature Range:

  • -20℃~25℃: More than 12 months
  • -20℃~45℃: Less than 3 months
  • -20℃~60 ℃: Less than 1 month

Compatible Models: For M12, 48-11-2401, 48-11-2402, 48-11-2420, 48-11-2430, 48-11-2440, 48-11-2460, 48-11-2411, 48-11-2412

Key Features – M12 1.5 Battery​

🌿 Eco-Friendly & Rechargeable Power

This M12 High Output 1.5Ah battery is built using environmentally friendly materials and supports hundreds of recharge cycles, drastically reducing waste compared with disposable power solutions. Its efficient lithium-ion chemistry delivers long-lasting performance without harmful pollutants.

📏 Compact, Lightweight & Easy to Carry

Designed for maximum portability, the 1.5Ah pack features a small footprint and ultra-lightweight construction, making your Milwaukee M12 tools easier to handle during overhead work, tight-space operations, and long work sessions.

🔥 Low Internal Resistance for Cooler, Higher Efficiency

Engineered with low-impedance cells, the battery produces less heat during high-load applications, ensuring:

  • Higher energy efficiency

  • Reduced power loss

  • Longer runtime stability

  • Better performance under continuous operation

This design guarantees reliable output even in heavy-duty use.

🔄 Up to 500 Deep Cycles

With a lifespan of up to 500 deep charge-discharge cycles, this battery provides years of dependable service. Its advanced cell chemistry maintains capacity and power even after extensive long-term use.

🛡️ Rugged Protective Shell (Dustproof, Waterproof & Shock-Resistant)

The battery comes with a durable outer housing that shields it from impact, vibration, dust, water splash. Its high-grade protective case ensures optimal reliability in harsh construction, workshop, and outdoor environments.

🌡️ Wide Temperature Performance & Cold-Resistant

Built for real-world working conditions, the battery maintains strong performance across a broad operating temperature range, including low-temperature environments where many lithium batteries struggle.

🔌 Strong Compatibility with Milwaukee M12 Tools

Designed as a seamless replacement, this 12V 1.5Ah High Output pack offers full compatibility with Milwaukee M12 tools and chargers, delivering the same fit, feel, and power output required for peak performance.

⚙️ Fully Customizable

OEM/ODM customization is available for:

  • Housing design

  • Capacity configuration

  • BMS functions

  • Connector type

  • Branding & labeling

Perfect for brands, distributors, and tool manufacturers seeking tailored solutions.

❓ FAQ – Frequently Asked Questions

Q1: What are the differences in Milwaukee M12 batteries?

A: Milwaukee M12 batteries differ mainly in capacity, output power, and runtime, with options ranging from compact 1.5Ah packs to larger High Output models designed for heavier workloads. Higher-Ah and High Output versions deliver more sustained power, better cooling, and longer runtime, while smaller packs focus on portability and reduced weight.
Q2: Why is my m12 flashing red and green?
A: M12 battery flashing red and green usually indicates a charging error, often caused by temperature issues, dirty contacts, or a faulty connection on the charger. Try reseating the battery, cleaning the terminals, or allowing it to warm up or cool down before charging again.

Q3: What is the lifespan of a Milwaukee battery?

A: Milwaukee battery typically lasts 3–5 years (500 cycles) depending on usage, storage conditions, and charging habits. With proper care and moderate workloads, many packs can maintain good performance for over 800 charge cycles.

Q4: Will Milwaukee batteries go bad in the cold?

A: Yes, Milwaukee batteries can lose performance in extreme cold, leading to reduced runtime and slower charging. However, they are designed to operate safely at low temperatures, and performance returns to normal once the battery warms up.

Q5: How to check the health of a Milwaukee battery?
A: You can check the health of a Milwaukee battery by pressing the fuel gauge button, which displays the remaining charge and can indicate abnormal behavior if levels drop too quickly. For a more accurate assessment, test the battery under load or use a compatible diagnostic charger to detect issues like voltage drop or cell imbalance.

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