Does the DCB204 fit all DeWalt 20V Max tools?

Yes. DeWalt states it is compatible with the entire 20V Max tool and accessory line, and it charges in 20V Max chargers.

How does the 4.0Ah pack compare with a 5.0Ah battery?

The 5.0Ah pack runs longer in high-draw tools but weighs more. The 4.0Ah is the lighter middle option for drills and drivers.

What is the fuel gauge for?

Three LEDs show roughly how much charge is left, so you can swap packs before a task instead of mid-cut.

Does it lose charge when stored?

DeWalt says the pack has virtually no self-discharge and no memory effect, so it can sit between jobs without a full drain.

What comes in the box?

One DCB204 4.0Ah 20V Max XR battery. Charger and tools are sold separately.

What do buyers say about the DeWalt DCB204 20V Max XR Lithium Ion Battery?

Rated 4.5 out of 5 from 14 ratings.

Where can I buy the DeWalt DCB204 20V Max XR Lithium Ion Battery?

15 stores we checked sell it, including The Home Depot, Amazon, Walmart, Fasteners Tool Outlet, Max Tool.

DeWalt DCB204 20V Max XR Lithium Ion Battery

Best price now

$55.99at AmazonChecked 12 h ago

60% under what the other stores charge

DeWalt DCB204 20V Max XR Lithium Ion Battery

Best price now

$55.99at AmazonChecked 12 h ago

60% under what the other stores charge

Compared across 14 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. As an Amazon Associate, Deal.ai earns from qualifying purchases.

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Price facts

Lowest price today: $55.99 at Amazon (checked Nov 13, 2026).
Checked at 14 stores.

Our take on the DeWalt DCB204 20V Max XR Lithium Ion Battery

The DCB204 is DeWalt's 4.0Ah 20V Max XR lithium-ion pack, the mid-capacity battery in the 20V Max line. It fits every DeWalt 20V Max tool and charger, and its 3-LED fuel gauge shows charge at a glance. DeWalt rates it for up to 33% longer runtime than the older compact packs, and lithium-ion means no memory effect and slow self-discharge. It suits owners of 20V Max drills, drivers and saws who want a balance of runtime and weight rather than the biggest pack available.

Best forOwners of DeWalt 20V Max tools adding a spare packDrills, drivers and light saw work where weight mattersUsers who want a charge gauge on the battery

Pros

Fits the full DeWalt 20V Max tool and charger line
3-LED fuel gauge shows remaining charge
4.0Ah capacity balances runtime against weight
No memory effect and low self-discharge for storage
Lithium-ion cells hold up over repeated cycles

Cons

Smaller capacity than 5.0Ah and FlexVolt packs, so shorter runtime in heavy tools
No charge-level display beyond three LEDs
Older design than DeWalt's newer PowerStack packs

DeWalt DCB204 20V Max XR Lithium Ion Battery prices at every store

WalmartNew
In stockSold by M & A Sales
$55.99Free shippingChecked 12 h ago
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The Home DepotNew
In stock
$76.65Checked 12 h ago
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Fasteners Tool OutletNew
In stock
$79.00+ $9.75 shippingChecked 12 h ago
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Ace HardwareNew
In stock
$159.00+ $15.00 shippingChecked 12 h ago
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MSC Industrial SupplyNew
In stock
$189.22+ $12.99 shippingChecked 12 h ago
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AmazonNew
Availability unknown
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$55.99Free shippingChecked 12 h ago
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Max ToolNew
Availability unknown
$106.00Checked 12 h ago
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McCoy's Building SupplyNew
Availability unknown
$136.99Checked 12 h ago
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Burns Power ToolsNew
Availability unknown
$139.00Checked 12 h ago
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Acme ToolsNew
Availability unknown
$140.99Checked 12 h ago
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Nail Gun DepotNew
Availability unknown
$174.95Checked 12 h ago
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WhiteCap.comNew
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$152.99+ $25.00 shippingChecked 12 h ago
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JMC Automotive EquipmentNew
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$179.00Checked 12 h ago
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Grainger Industrial SupplyNew
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$183.38Checked 12 h ago
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DeWalt DCB204 20V Max XR Lithium Ion Battery price history

Lowest price we've seen: $55.99 on Nov 13 at Walmart. Tracked across 14 stores since Nov 13.

What reviewers say

4.5 / 514 ratings

Ratings are strong at 4.5 out of 5 from 14 ratings. Owners treat it as a dependable everyday pack for 20V Max tools, with the fuel gauge and fit called out as useful.

What people mention

RuntimeMixedOwners find it lasts well in drills and drivers but drains faster in heavy tools than bigger packs.
CompatibilityPraisedIt fits DeWalt 20V Max tools and chargers as expected.
Fuel gaugePraisedThe 3-LED gauge makes it easy to check charge before starting a job.
WeightPraisedThe 4.0Ah pack is lighter than larger-capacity batteries, which owners like for handheld work.

About the DeWalt DCB204 20V Max XR Lithium Ion Battery

The DeWalt DCB204 is a 20V MAX XR lithium-ion battery pack with a 4.0Ah capacity. It works with the entire line of DeWalt 20V MAX tools and accessories.

The XR lithium-ion pack provides up to 33% longer run-time. It has no memory and virtually no self-discharge, which means less downtime. A 3-LED fuel gauge shows the charge level, and the design is lightweight.

Voltage: 20V MAX
Capacity: 4.0Ah
Battery type: XR lithium-ion
Model: DCB204
Fuel gauge: 3-LED
Compatibility: Entire line of DeWalt 20V MAX tools and accessories
In the box: 1 x 4.0Ah 20V MAX battery (DCB204)

Questions and answers

Does the DCB204 fit all DeWalt 20V Max tools?: Yes. DeWalt states it is compatible with the entire 20V Max tool and accessory line, and it charges in 20V Max chargers.
How does the 4.0Ah pack compare with a 5.0Ah battery?: The 5.0Ah pack runs longer in high-draw tools but weighs more. The 4.0Ah is the lighter middle option for drills and drivers.
What is the fuel gauge for?: Three LEDs show roughly how much charge is left, so you can swap packs before a task instead of mid-cut.
Does it lose charge when stored?: DeWalt says the pack has virtually no self-discharge and no memory effect, so it can sit between jobs without a full drain.
What comes in the box?: One DCB204 4.0Ah 20V Max XR battery. Charger and tools are sold separately.
Where is the DeWalt DCB204 20V Max XR Lithium Ion Battery cheapest?: At Amazon, for $55.99, 60% under what the other stores charge, as of our latest check.
What do buyers say about the DeWalt DCB204 20V Max XR Lithium Ion Battery?: Rated 4.5 out of 5 from 14 ratings.
Where can I buy the DeWalt DCB204 20V Max XR Lithium Ion Battery?: 15 stores we checked sell it, including The Home Depot, Amazon, Walmart, Fasteners Tool Outlet, Max Tool.