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Two black 18V 6.5Ah lithium-ion batteries side by side

THISS

THISS 18V 6.5Ah Lithium-Ion Battery 2 Pack Black

SKU CH-N3EJ-TWARA

Two 18 V 6.5 Ah lithium-ion packs replace Makita BL1830, BL1850 and BL1860 batteries

  • Rated voltage18 V
  • Corded or cordlessCordless
  • Battery typeLithium Ion
  • Labor warranty5 Years
  • Product typeBatteries
  • Color and finishBlack
  • Extended runtime with 6.5Ah capacity
  • 18V lithium-ion power for Makita LXT tools
  • Two-battery pack keeps work going
  • Replaces BL1830, BL1850, BL1860 and more
  • One-year warranty plus 30-day money back

Two-pack 18 V lithium-ion batteries

This twin pack supplies two 18 V 6.5 Ah lithium-ion cells finished in black. They are built as direct replacements for a long list of Makita LXT part numbers including BL1815 through BL1890B. The set suits tradespeople and serious DIYers who run multiple 18 V tools and want matched capacity across the kit.

Cool running and low self-discharge

Lithium-ion chemistry keeps the packs cool during typical drilling driving and sawing tasks. Self-discharge is minimal so the batteries hold charge for weeks between jobs. No memory effect means they can be topped up at any point without reducing usable capacity.

Steady output on extended cuts and holes

Under continuous high-draw work such as long rip cuts or repetitive hammer drilling the cells maintain voltage without the sharp sag seen in lower-capacity packs. Runtime scales with the 6.5 Ah rating so a single charge covers a full morning of framing or decking before a swap is needed.

How it compares

Measured against everything we stock in Disposable & Rechargeable Batteries, at today’s prices. Recalculated every night.

Price $44.99
Pricier than about 65% of the 985 comparable items (median $28.99).

Specifications

Product
Product typeBatteries
Color and finishBlack
Power
Rated voltage18 V
Corded or cordlessCordless
Battery typeLithium Ion
In the box
Number of items2 pack

Questions about this item

How do I install the 18V 6.5Ah battery into my Makita 18V tool, and what step do people often miss?

Align the battery rails with the tool's guide slots, push firmly until the latch clicks audibly, and verify the charge indicator lights up; the step often missed is not seating it fully so the latch does not engage.

What maintenance or replacement will the 6.5Ah lithium-ion pack need over its service life?

Store at roughly half charge in a cool, dry place when unused for weeks, avoid full discharge cycles, and plan to replace the pack once run-time drops below roughly 80 % of its original 6500 mAh capacity.

What limit appears first when the 18V 6.5Ah battery runs a high-draw tool continuously?

The internal thermal protection triggers first, cutting output to prevent cell overheating before the 6.5Ah charge is fully depleted.

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