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High Output 18V 12.0Ah Li-ion Battery Replacement For Milwaukee M18
High Output 18V 12.0Ah Li-ion Battery Replacement For Milwaukee M18
High Output 18V 12.0Ah Li-ion Battery Replacement For Milwaukee M18
High Output 18V 12.0Ah Li-ion Battery Replacement For Milwaukee M18
High Output 18V 12.0Ah Li-ion Battery Replacement For Milwaukee M18

High Output 18V 12.0Ah Li-ion Battery Replacement For Milwaukee M18 High Output 18V 12.0Ah Li-ion Battery Replacement For Milwaukee M18

Item #: RHY-MI18-12
Compatible Brand: For Milwaukee
Battery Type: Li-ion
Voltage: 18V
Manufacturer: RHY
MOQ: 100 pcs

  • 9.0Ah
  • 12.0Ah
  • 15.0Ah
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Introducing the RHY-MI18-12 Battery: Unmatched Power and Performance for Your Tools!


The RHY-MI18-12 battery is designed to be compatible with all Milwaukee M18 system tools and interchangeable with any Milwaukee 18V lithium-ion batteries.


Equipped with 15 high-energy density 21700 cells, this battery delivers a staggering 100A (1800W) of robust power, ensuring unparalleled performance for your applications. Even when you don’t need as much power, the battery can run safer and cooler because the energy transfer is more efficient. With a massive capacity of up to 15.0Ah (270Wh), enjoy extended runtime like never before.


The bottom of the battery features a rubber overmold, enhancing its impact resistance and durability. It stands out as the pinnacle of excellence in the 18V battery platform, setting a new standard for power and reliability. Don't miss out on the opportunity to elevate your applications to new heights.


*Refer to: 48-11-1812 / M18 HB12 / HD 12.0


What sets our battery apart? - Uncompromising quality and competitive prices. From design to production, we adhere to the same or even higher quality standards and specifications as original batteries, ensuring consistent compatibility, performance and reliability. Unlike original batteries, our pricing is transparent and based solely on actual production costs. Why settle for paying 70% more when you can enjoy the same or better quality for less?


🔋Choose Honesty: Our Batteries Deliver True & Full Capacity!⚡ Inquire to learn more>>>

Product Specifications

Product Name

High Output 18V 12.0Ah Li-ion Battery Replacement For Milwaukee M18

Item No.


Compatible Brand



Power tools

Battery Type

Rechargeable lithium-ion battery pack




9.0Ah, 12.0Ah, 15.0Ah (*optional)


162Wh, 216Wh, 270Wh (*optional)

Cell Size


Cell Array


Total # of Cells


Dimensions L × W × H

152 × 86 × 99 mm (5.99 × 3.4 × 3.89 in)


1.5 kg (3.4 lb)





Labels & Stickers


Place of Origin

Guangdong, China




Replace Part Number (P/N):

48-11-1860, 48-11-1852, 48-11-1850, 48-11-1850R, 48-11-1840, 48-11-1890, 48-11-1828, 48-11-1820, 48-11-1811, 48-11-1815, 48-11-1822, 48-11-1835, 48-11-1837, 48-11-1851, 48-11-1861, 48-11-1862, 48-11-1865, 48-11-1880, 48-11-1841, 48-11-1812, 48-59-181, 48-59-1813, 48-59-1835, 48-59-1850, 48-59-1880, 48-59-1890, 4932352071, 4932430063, C18B, Li18, M18, M18B, M18B2, M18B4, M18B5, M18BX, M18HB3, M18HB5.5, M18HB8, M18HB12, M18FB6


Compatible with all Milwaukee M18 system 18V cordless tools


  • Top-Notch Li-ion Cells: The cells used in our battery packs represent the world's most cutting-edge battery technology, boasting the highest levels of energy density. We use only the grade-A quality cells from world's top manufacturers such as Samsung, LG, Sony, Sunpower, Highstar, EVE, and more.

  • Fireproof Plastic Materials: Crafted with UL 94 V-0 rated flame-retardant PC/ABS materials, our battery housing guarantees maximum safety and protection against fire.

  • LED Charge Indicator: The integrated LED charge indicator functions as a fuel gauge for the battery, allowing users to monitor the battery charge in real time for optimal usage.

  • Protection Circuit: Equipped with a multi-protection circuit module (PCM), our batteries actively safeguard against overcharge, over-discharge, overload, overheat, short circuit, and more. (*Specific protection features may vary for each battery to maintain consistency with the original battery.)

  • Perfect Compatibility: Each battery undergoes rigorous testing on Milwaukee power tools to ensure seamless match and optimal performance.

  • Ultra-Long Cycle Life: 800-1000 cycles, delivering exceptional endurance and durability.

  • Factory Direct: Benefit from true factory pricing without any middleman markups or brand premiums, giving you the best value for your investment!

  • Customization Options: Tailor our products to meet your specific needs with customizable options including color, labeling, packaging, and performance specifications, ensuring a personalized solution that fits your requirements.

  • Warranty: 1-year warranty and lifelong technical support

Packaging & Shipping


Each product is packed in plain brown box with bubble bag, user manual and black & white label;
Custom labeling and retail packaging options are available upon request and may incur additional charges.



We offer flexible shipping options to meet your specific needs and comply with relevant regulations. Our shipping methods include express delivery (UPS, FedEx, DHL, TNT, etc.), air freight, sea freight, land transportation, and rail transportation. We have established strong partnerships with international freight forwarders, enabling us to maintain stable global transport chains and ensure the efficient and timely delivery of your goods.

About Manufacturer

Welcome to RHY - Your Premier Power Tool Battery Manufacturer

Established in 2013, RHY stands out as the earliest and largest manufacturer specializing in power tool batteries in China. We are committed to providing industry-leading battery solutions for a wide range of applications including power tools, garden tools, vacuum cleaners, electric bicycles, and more.


Why Choose RHY?

  • Industry Leader: We are the primary source supplier of compatible batteries & chargers for top brands like Makita, DeWalt, Bosch, Milwaukee, Dyson, Hitachi, Ryobi, Craftsman, etc.

  • Global Reach: Our products are throughout platforms such as Amazon, eBay, Yahoo, AliExpress, and local shopping sites. With 90% of our products sold to developed countries, we have delivered over 20.4 million battery packs and chargers in the past decade.

  • State-of-the-Art Facilities: With 240,000 SF of manufacturing facilities in Shenzhen and Huizhou, equipped with highly-automated production workshops, innovative R&D lab, and an experienced engineering team, we ensure the top-notch services and products.

  • Certified Quality: All our facilities and processes are certified to ISO9001:2015, SQP, and BSCI standards.

  • Overseas Warehouses: Take advantage of our overseas warehouses in the USA, Japan, Europe, and Australia for quick and efficient local deliveries.


Partner with RHY for Quality and Reliability

Whether you're looking to resell replacement batteries and chargers or seek custom battery packs & chargers for your unique projects, RHY is your trusted partner for superior products and services!


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*Disclaimer: RHY is an independent entity and is not associated or affiliated with any of the manufacturers mentioned on this page. The products listed on this page have not been sponsored or approved by any of such manufacturers. Any trademarks or model numbers mentioned on this page are identified for compatibility or cross-reference purposes only.

*Note: Wholesale only. Please understand that we don’t process requests from private individuals that purchase our products for personal use.    


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