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Black rectangular lithium-ion power tool battery with 4V 2.0Ah rating

BatteryJack inc.

BatteryJack inc. Banshee 2.0Ah 4V Li-Ion Battery for Milwaukee 48-11-2001

SKU CH-78FM-BBFQH

A 4V 2.0Ah lithium-ion replacement battery compatible with Milwaukee M4 cordless tools

  • Product typeBatteries
  • Parts warranty2 Year Warranty
  • 0 Ah capacity extends runtime on Milwaukee M4 tools
  • 4 V lithium-ion chemistry delivers consistent power output
  • Direct replacement for Milwaukee 48-11-2001 ensures proper fit
  • Two-year warranty covers defects in materials and workmanship
  • High-quality cells maintain performance across charge cycles

Banshee 4V 2.0Ah Li-Ion Replacement

This Banshee battery replaces the Milwaukee 48-11-2001 pack for M4 cordless tools. It delivers 4 volts and 2.0 amp-hours using lithium-ion cells. The black housing matches the original form factor. A two-year warranty backs the replacement.

Simple Slide-In Installation

The pack slides into the tool battery bay and clicks into place like the original unit. No soldering or wiring is required for the swap. The main issue is forgetting to charge the new pack before first use. Dirty contacts on the tool can also prevent the battery from seating correctly.

Suits M4 Tool Owners Needing a Fresh Pack

This unit fits users who want a direct 48-11-2001 replacement with a two-year warranty. It is not for buyers who need higher capacity than 2.0Ah for longer runtime. Builders running newer Milwaukee platforms that use different battery mounts should look elsewhere.

How it compares

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

Price $18.99
Cheaper than about 68% of the 985 comparable items (median $28.99).

Specifications

Product
Brand nameBanshee
Product typeBatteries

Questions about this item

How can I confirm the Banshee 4V 2.0Ah battery is working after installing it in my M4 cordless tool?

Insert the pack into any M4 tool; the tool should power on and run normally, showing the expected 4V output and 2000mAh runtime.

What comes with the battery and what must I buy separately?

The package contains only the 4V 2.0Ah Li-Ion replacement pack; a compatible M4 charger is sold separately.

Which capacity should I choose for my Milwaukee 48-11-2001 tool?

This listing is the single 2.0Ah 4V version that directly replaces the 48-11-2001 code; no other capacities are offered here.

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