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Deal.ai › Makita
Makita
Makita (BL1850B-2) 18V LXT 5.0Ah Battery, 2/pk

Makita (BL1850B-2) 18V LXT 5.0Ah Battery, 2/pk

4.5(18 ratings)

Best price now

$188.00at AmazonChecked 9 h ago

35% under what the other stores charge

Compared across 15 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

  • Best price today: $188.00 at Amazon (checked Nov 15, 2026).
  • Checked at 15 stores.

Our take on the Makita (BL1850B-2) 18V LXT 5.0Ah Battery, 2/pk

The Makita BL1850B is a 5.0Ah 18V LXT lithium-ion battery, sold here as a two-pack. It fits Makita's 18V LXT and 18V Compact tools and has a built-in LED charge gauge. Makita rates it at up to 65% more run time per charge than the older 3.0Ah BL1830, and it recharges in 45 minutes or less on a compatible charger. It suits owners who already run LXT tools and want longer runtime between swaps; the trade-off is the extra weight and bulk of a 5.0Ah pack compared with smaller 3.0Ah or 2.0Ah batteries.

Best forLXT tool owners who want longer runtimeCrews running several 18V tools in rotationReplacing worn or older 3.0Ah packsUsers who want a charge gauge on the pack
Pros
  • Up to 65% more runtime than the BL1830
  • LED charge-level indicator on the pack
  • Full charge in 45 minutes or less
  • Fits the whole 18V LXT line
  • Two packs keep one charging while one works
Cons
  • Heavier and bulkier than smaller LXT packs
  • Needs a Makita charger, not included
  • Older LXT tools may feel nose-heavy with it

Makita (BL1850B-2) 18V LXT 5.0Ah Battery, 2/pk prices at every store

  • eBayNew

    In stockMade for another market

    $95.00Free shippingChecked 9 h ago
    Visit eBay
  • The Home DepotNew

    In stock

    $289.00Free shippingChecked 9 h ago
    Visit The Home Depot
  • Pacific Power ToolsNew

    In stockReturn policy

    $289.00Checked Nov 7
    Visit Pacific Power Tools
  • Northern ToolNew

    In stockMade for another market

    $289.00+ $10.99 shippingChecked 9 h ago
    Visit Northern Tool
  • Small Engines Pro DealerNew

    In stockMade for another market

    $295.80+ $16.45 shippingChecked 9 h ago
    Visit Small Engines Pro Dealer
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $188.00Free shippingChecked 9 h ago
    Visit Amazon
  • Construction Tool WarehouseNew

    Availability unknown

    $289.00Checked 9 h ago
    Visit Construction Tool Warehouse
  • Jaeger LumberNew

    Availability unknownMade for another market

    $289.99Checked 9 h ago
    Visit Jaeger Lumber
  • hpmhawaii.comNew

    Availability unknownMade for another market

    $289.99Checked 9 h ago
    Visit hpmhawaii.com
  • eAutoTools.comNew

    Availability unknown

    $294.65Checked 9 h ago
    Visit eAutoTools.com
  • Columbia SafetyNew

    Availability unknown

    $304.99Checked 9 h ago
    Visit Columbia Safety
  • J Harlen Co.New

    Availability unknown

    $351.80Checked 9 h ago
    Visit J Harlen Co.
  • ImperialSupplies.comNew

    Availability unknownMade for another market

    $361.14Checked 9 h ago
    Visit ImperialSupplies.com
  • RSNew

    Availability unknownSold by AmericaMade for another market

    $419.13Checked 9 h ago
    Visit RS
  • Penn Tool Co.New

    Availability unknownMade for another market

    $516.95Checked 9 h ago
    Visit Penn Tool Co.

Store links may earn us a commission.

Makita (BL1850B-2) 18V LXT 5.0Ah Battery, 2/pk price history

Lowest price we've seen: $95.00 on Nov 15 at eBay. Tracked across 14 stores since Nov 15.

What reviewers say

  • 4.5 / 518 ratings

Owners rate it well, with 4.5 out of 5 from 18 ratings. They value the longer runtime and the charge gauge, and the main gripes are weight and the need for a Makita charger.

What people mention
  • RuntimePraisedOwners say it runs tools noticeably longer than the older 3.0Ah packs.
  • Charge gaugePraisedThe LED indicator is called useful for checking charge at a glance.
  • Charging speedPraisedReviewers note it reaches full charge quickly on Makita chargers.
  • WeightCriticisedSome find the 5.0Ah pack heavier and bulkier than smaller LXT batteries.
  • ChargerMixedBuyers point out it needs a Makita charger, which is not included.

About the Makita (BL1850B-2) 18V LXT 5.0Ah Battery, 2/pk

This is a two-pack of Makita 18V LXT 5.0Ah batteries. They power 18V LXT and 18V Compact tools. Compared to the BL1830, each battery provides up to 65% more run time per charge.

Each battery has an integrated L.E.D. charge level indicator for monitoring the charge. A battery reaches full charge in 45 minutes or less.

Model
BL1850B-2
Voltage
18V
Capacity
5.0Ah
Quantity
2 batteries per pack
Battery series
LXT
Compatibility
18V LXT tools and 18V Compact tools
Run time
Up to 65% more per charge than BL1830
Charge time
45 minutes or less to full charge
Charge indicator
Integrated L.E.D. charge level indicator

Questions and answers

Does it fit all Makita 18V tools?
It fits Makita 18V LXT and 18V Compact tools. It does not fit 12V CXT or 40V XGT tools.
How is it different from the BL1830?
The BL1850B is a 5.0Ah pack; the BL1830 is 3.0Ah. Makita rates the 5.0Ah pack at up to 65% more run time per charge.
How long does it take to charge?
Makita says a full charge takes 45 minutes or less on a compatible charger. The charger is not included.
Is a charger included?
No. The pack is sold as a two-pack of batteries only, so you need a Makita 18V LXT charger.
How do I check the charge level?
Press the button on the pack and the integrated LED indicator shows the remaining charge.
Is the 5.0Ah pack worth it over a smaller one?
If you want longer runtime per charge and can accept the extra weight, yes. For light work or tight spaces, a smaller pack is easier to handle.
Where is the Makita (BL1850B-2) 18V LXT 5.0Ah Battery, 2/pk cheapest?
At Amazon, for $188.00, 35% under what the other stores charge, as of our latest check.
What do buyers say about the Makita (BL1850B-2) 18V LXT 5.0Ah Battery, 2/pk?
Rated 4.5 out of 5 from 18 ratings.
Where can I buy the Makita (BL1850B-2) 18V LXT 5.0Ah Battery, 2/pk?
15 stores we checked sell it, including The Home Depot, Amazon, eBay, Northern Tool, Construction Tool Warehouse.

Stores we've priced the Makita (BL1850B-2) 18V LXT 5.0Ah Battery, 2/pk at

  • Northern Tool deals and prices
  • The Home Depot deals and prices

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