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The DCB240-2 is a two-pack of DeWalt's 20V MAX compact 4.0Ah lithium-ion batteries, rated at 80 watt-hours each. They use the same compact cell format as the 3.0Ah DCB230, so they add runtime without adding bulk, which helps in overhead work and tight spaces. Each pack has a 3-LED fuel gauge and works with every DeWalt 20V MAX tool and charger. Against DeWalt's larger 5.0Ah and FlexVolt packs they trade peak runtime for lighter weight; against budget third-party packs they offer genuine cell quality and warranty coverage. Owner feedback is mixed, with a notable share reporting early failures.
In stockSold by Sceglio EnterprisesReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
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Lowest price we've seen: $174.10 on Nov 9 at The Home Depot. Tracked across 6 stores since Nov 9.
Ratings are middling, and the complaints cluster around reliability rather than performance. Owners who get good packs praise the runtime-to-size ratio and the fuel gauge; others describe packs that failed within months.
Get extended runtime in a compact, lightweight design with the DEWALT DCB240-2 20V MAX 4.0Ah Compact Lithium-Ion Battery Pack 2-Pack. Designed for professional contractors and DIY users, these batteries deliver high capacity without added bulk, making them ideal for overhead work, tight spaces, and extended use. Each 4.0Ah (80 watt-hour) battery provides up to one-third more runtime compared to smaller compact batteries while maintaining the same size and weight as the DCB230 3.0Ah battery. This balance of power and portability improves tool control and reduces fatigue during demanding tasks. Despite their compact footprint, these batteries deliver consistent performance for drilling, fastening, cutting, and sanding applications. The integrated 3-LED fuel gauge allows users to quickly check charge levels and plan work efficiently to minimize interruptions. Fully compatible with the DEWALT 20V MAX cordless system, this 2-pack is an ideal solution for expanding runtime, replacing older batteries, or keeping backup power ready on the jobsite or at home.
