Replacement Kobalt 40V Lawn & Garden Tool Battery (40 Volt, 4.0Ah, Li-Ion)

Replacement Kobalt 40V Lithium-Ion Battery – 4.0Ah High-Capacity Power for Lawn & Garden Tools

Power your outdoor tools with this premium replacement Kobalt 40V battery, compatible with a wide range of Kobalt lawn and garden equipment—including trimmers, chainsaws, leaf blowers, and more. Built with high-capacity 4000mAh lithium-ion cells, it delivers long-lasting, reliable performance at a fraction of the cost of OEM batteries.

Key Features:

• Compatible with Kobalt 40V Tools
• Works with Kobalt trimmers, blowers, chainsaws, and other 40V yard tools
• 4.0Ah High-Capacity Design – Extended run time for bigger jobs and less downtime
• OEM-Grade Performance – Meets or exceeds original manufacturer specifications
• Cost-Effective Alternative – Get the same power without the high OEM price
• Durable Lithium-Ion Technology – Built to last with consistent, fade-free power

Why Choose This Battery?

Skip the brand-name markup. This battery offers premium performance, extended durability, and perfect compatibility—without overpaying. It’s the smart, affordable choice for homeowners and pros who need dependable power for their yard work.

For a full list of compatible models and cross-reference details, check our cross reference below.

A: No, this is a third-party aftermarket replacement battery manufactured by Cameron Sino. It is designed and tested to meet or exceed the performance of the original Kobalt KB2540C-06 battery, providing a high-quality and cost-effective alternative to OEM batteries.

A: This 40V, 4.0Ah replacement battery is compatible with a wide range of Kobalt 40V Max lawn and garden tools, including the following models:

• Kobalt 40V Max 19-in and 20-in Mowers
• Kobalt 40V Max Blower
• Kobalt 40V Max Chainsaw
• Kobalt 40V Max Hedge Trimmer
• Kobalt 40V Max Pole Saw
• Kobalt 40V Max Power Washer Handheld Cordless Cleaner
• Kobalt 40V Max String Trimmer

A: This battery is backed by a 6-month warranty from Battery Mart. If you encounter any issues with the battery within this period, simply contact our customer support team with your order number for a quick resolution.

A: This is a 4.0Ah (4000 mAh) high-capacity lithium-ion battery. The higher capacity means you get extended run time on your yard tools, allowing you to complete larger jobs without needing to stop and recharge as frequently.