Milwaukee M18 Battery Rebuild Service – Models 48-11-1815, 48-11-1820, 48-11-1828, 48-11-1830, 48-11-1840, 48-11-1850

Bring your old Milwaukee M18 batteries back to life with our professional rebuild service! This is not a new battery—you must send in your existing pack, and we will rebuild it with fresh, high-quality lithium-ion cells.

✅ Compatible with the following models:

• 48-11-1815
• 48-11-1820
• 48-11-1828
• 48-11-1830
• 48-11-1840
• 48-11-1850

We offer two rebuild options:

• Standard Build – Reliable cells that restore your pack to original performance.
• Premium Build – High-performance cells for maximum runtime, durability, and power output.

Important Requirements:

• The BMS (Battery Management System) and battery case must be in good condition.
• If the case or BMS is damaged, we will contact you before starting the rebuild.

How It Works:

1. Place your order.
2. Ship your battery pack to:
   RenewSpark – PO Box 10174, Irvine, CA 92614
3. We replace the internal cells, test the pack, and ship it back ready for use.

This service saves you money and helps reduce waste—keeping your tools working and batteries out of the landfill.