Is this a genuine Makita battery?

Yes. It is the Makita BL1820B, an 18V LXT lithium-ion pack. The listing is for five units.

Which tools does it fit?

It is an 18V LXT battery, so it fits Makita 18V LXT tools and chargers. The listing does not give a full compatibility list, so check your tool and charger documentation.

How does it compare with larger LXT packs?

This is a compact pack, so it is lighter but runs for less time than Makita's higher-capacity LXT batteries. It suits lighter jobs and short sessions.

How much does one battery weigh?

The unit weight is 1.167 pounds.

Five BL1820B 18V LXT lithium-ion batteries. Chargers and tools are not included.

The country of origin is Singapore.

Makita BL1820B 18V LXT Lithium-Ion Tool Battery - Pack of 5

Best price now

$551.63at WalmartChecked 10 h ago

Prices are checked against each store and labelled with when.

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Makita BL1820B 18V LXT Lithium-Ion Tool Battery - Pack of 5

Best price now

$551.63at WalmartChecked 10 h ago

Prices are checked against each store and labelled with when.

Visit Walmart

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Price facts

Lowest price today: $551.63 at Walmart (checked Nov 15, 2026).

Our take on the Makita BL1820B 18V LXT Lithium-Ion Tool Battery - Pack of 5

The Makita BL1820B is a rechargeable 18V lithium-ion battery in Makita's LXT line, sold here as a five-pack. It is the compact 2.0Ah class pack that fits the wide range of LXT 18V drills, drivers, saws and other tools. A five-pack suits people running several LXT tools at once or a small crew that wants charged packs on hand. Against the larger-capacity LXT packs, it trades runtime for lighter weight and a smaller footprint, so it is best for lighter jobs and tools that do not need long runtimes.

Best forOwners of several Makita 18V LXT toolsSmall crews and shared tool setupsLighter drilling, driving and trim workKeeping spare charged packs on hand

Pros

Genuine Makita LXT 18V battery
Lithium-ion and rechargeable
Compact and light at about 1.17 lb
Fits the broad LXT 18V tool line
Five-pack covers multiple tools or spares

Cons

Lower capacity than Makita's larger LXT packs
Shorter runtime in high-drain tools
Full tool and charger compatibility is not listed
No capacity, dimensions or charge-time details given

Makita BL1820B 18V LXT Lithium-Ion Tool Battery - Pack of 5 prices at every store

WalmartNew
In stockSold by Supply the HomeReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
$551.63Free shippingChecked 10 h ago
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About the Makita BL1820B 18V LXT Lithium-Ion Tool Battery - Pack of 5

The Makita BL1820B is an 18V LXT lithium-ion tool battery for Makita cordless tools. It belongs to the Makita LXT line and is rechargeable, so it can be charged again after use.

This listing is for a pack of 5 batteries.

Model: Makita BL1820B
Voltage: 18V
Battery type: Lithium-ion, rechargeable
Series: Makita LXT
Unit weight: 1.167 pounds
Pack size: 5 batteries
Country of origin: Singapore

Questions and answers

Is this a genuine Makita battery?: Yes. It is the Makita BL1820B, an 18V LXT lithium-ion pack. The listing is for five units.
Which tools does it fit?: It is an 18V LXT battery, so it fits Makita 18V LXT tools and chargers. The listing does not give a full compatibility list, so check your tool and charger documentation.
How does it compare with larger LXT packs?: This is a compact pack, so it is lighter but runs for less time than Makita's higher-capacity LXT batteries. It suits lighter jobs and short sessions.
How much does one battery weigh?: The unit weight is 1.167 pounds.
What is in the box?: Five BL1820B 18V LXT lithium-ion batteries. Chargers and tools are not included.
Where is it made?: The country of origin is Singapore.
Where is the Makita BL1820B 18V LXT Lithium-Ion Tool Battery - Pack of 5 cheapest?: At Walmart, for $551.63, as of our latest check.