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Black rectangular lithium-ion power tool battery with branded label

BatteryJack inc.

BatteryJack inc. Banshee 4V 2Ah Li-Ion Battery 48-11-2001

SKU CH-X8TK-2RGQN

Replacement 4V 2Ah lithium-ion battery fits Milwaukee M4 cordless tools and includes a two-year warranty

  • Product typeBatteries
  • Parts warranty2 Year Warranty
  • Replaces Milwaukee M4 4V tools directly
  • Delivers 4V 2000mAh lithium-ion runtime
  • Backed by two-year replacement warranty
  • Matches OEM code 48-11-0490 fit
  • Powers all M4 cordless tool models

Replacement M4 4V 2Ah Li-Ion Battery

This Banshee battery replaces the Milwaukee 48-11-2001 pack for M4 cordless tools. It delivers 4 V and 2000 mAh using lithium-ion cells. The unit is new and carries a two-year warranty. It suits owners of Milwaukee M4 equipment who need a direct drop-in power source.

Capacity and runtime headroom

The 2000 mAh rating supports typical M4 drilling and driving tasks through a standard work session. Heavy continuous loads such as prolonged high-torque drilling will deplete the pack faster. Users running multiple tools back-to-back should plan for a second charged battery. The lithium-ion chemistry holds charge well during storage between jobs.

Build integration and workflow

The battery fits all Milwaukee M4 cordless tools including the 0490-22 kit without modification. No adapter or firmware update is required for installation. Its black housing matches the original equipment aesthetic. The two-year warranty covers cell performance defects during normal use.

How it compares

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

Price $15.99
Cheaper than about 74% of the 985 comparable items (median $28.99).

Specifications

Product
Brand nameBanshee
Product typeBatteries

Questions about this item

Will the 48-11-2001 battery work with my existing Milwaukee M4 cordless tools?

Yes, the Banshee 4V 2Ah Li-Ion battery is listed as compatible with all Milwaukee M4 cordless tools including the 0490-22 model.

How can I confirm the Banshee 4V 2Ah battery is charging and holding capacity correctly?

Insert it into a compatible Milwaukee M4 charger; the charger indicators will show charging status and a full charge confirms the 2000mAh capacity is accepted.

Does the 48-11-2001 pack include a charger or only the black 4V Li-Ion battery itself?

The supplier title and specifications describe the battery only; a compatible Milwaukee M4 charger must be purchased separately if you do not already own one.

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