eJiasu 40V battery front view shows 6.0Ah capacity for longer use
eJiasu 40V battery side view highlights rugged construction for outdoor jobs
eJiasu 40V battery LED indicator clearly shows charge level
eJiasu 40V battery charging port enables fast, convenient recharges
eJiasu 40V battery in-use with Kobalt tools delivers steady power
eJiasu 40V battery packaging communicates included items and value
eJiasu 40V battery compatibility chart highlights broad tool support

eJiasu

eJiasu 40V Battery 6.0Ah – Replacement for Kobalt 40V Max (KB-540-06, KB440-06, KB240-06) | 240Wh Li-ion

High-performance tools and home improvement made for confident daily results

$97.51

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Why customers choose TaskHolt Tools

eJiasu 40V Battery Replacement for Kobalt 40V Tools

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Meet a robust replacement for your Kobalt 40V ecosystem. The eJiasu 6.0Ah lithium-ion battery packs a substantial 240Wh capacity, designed to support longer sessions with your cordless tools. Built with durable cells, it feels reassuringly solid in your hand and delivers steady power through a wide range of tasks—from pruning hedges to clearing leaves.

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Rather than promising fixed results, this battery presents a set of features that have the potential to improve your workflow, including smart indicators and protective circuitry that helps you monitor and manage power effectively.

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Key benefits

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  • High capacity for longer tool run time: 6.0Ah at 240Wh balances weight and endurance.
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  • Reliability and safety: built-in protection guards against overload, short circuits, and voltage spikes.
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  • Smart power status: four LED indicators show remaining charge at a glance.
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Compatibility and versatility

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  • Designed to replace Kobalt 40V max batteries across the lineup, including KB440-06, KB240-06, KB640-03, KB2540C-06, and more.
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  • Seamless integration with original chargers (KRC60-06, KRC40-06, KRC840-03) ensures convenient recharging when you need it.
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  • Broad tool compatibility means you can power chain saws, trimmers, leaf blowers, mowers, and other 40V tools with a single battery.
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Indicator features and warranty

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  • Visible power status: smart four-LED fuel indicators help you gauge battery life quickly.
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  • Ready for use: no memory effect allows flexible charging and discharging without capacity loss.
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  • What you get: 1x eJiasu 40V battery 6.0Ah, plus 30-day money-back guarantee and one-year exchange policy.
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Practical tips: before purchase, verify your mower or tool model, and check compatibility notes to ensure a smooth fit with your 40V system. If you have questions, you can reach us via the storefront's Ask a Question option or in your order details.

FAQ

Q: Is this battery compatible with my Kobalt 40V tools?

A: Yes—this 6.0Ah replacement fits many Kobalt 40V models listed in the product details.

Q: What is the expected runtime with typical tools?

A: Runtime varies by tool and usage, but the 240Wh capacity supports longer sessions before recharge.

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