⚡ Upgrade Your Tools: 21V MAX 4.0Ah Extended Runtime Battery

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21V MAX – 4.0Ah Lithium-Ion Battery with Extended Runtime & LED Charge Indicator


🔧 About This Item

  • Battery Specification: Li-ion 21V MAX with 4000mAh capacity for extended runtime.
  • Extended Run Time: Delivers 2X longer running time compared to 2000mAh batteries.
  • Lightweight Design: Weighs only 1.16 lbs, perfect for portable use.
  • Maximum Productivity: No memory effect & virtually no self-discharge for consistent performance.
  • Diversity Compatible: Works seamlessly with all 21V MAX* chargers, tools, and outdoor equipment.
  • Secure, Easy Release Latch: Hassle-free swapping between multiple tools.
  • Premium Quality: Built with high-energy cells for durability and extended battery life.

✅ Pros & ⚠️ Cons

Pros:
  • Extended runtime with 4000mAh capacity
  • Lightweight and portable
  • No self-discharge, no memory effect
  • Compatible with all 21V MAX tools & chargers
  • Easy and secure tool swapping
 Cons:
  • Only works with 21V MAX systems
  • May take longer to fully recharge due to larger capacity

💡 Final Thoughts

The 21V MAX – 4.0Ah Lithium-Ion Battery is a must-have for professionals and DIY enthusiasts who need long-lasting power and maximum efficiency. With double the runtime of standard batteries, lightweight portability, and universal compatibility with 21V MAX tools, it ensures your projects run smoothly with minimal downtime. Whether you’re working on heavy-duty jobsite applications or home improvement tasks, this battery delivers reliability and performance every time.

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