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Black rectangular 4V lithium-ion power tool battery with Milwaukee-compatible contacts

BatteryJack inc.

BatteryJack inc. 4V 2000mAh Li-Ion Battery Replaces Milwaukee 48-11-2001

SKU CH-K69G-18F92

4 V 2000 mAh lithium-ion replacement for Milwaukee M4 cordless tools with a two-year warranty

  • Product typeBatteries
  • Parts warranty2 Year Warranty
  • 4V output powers M4 cordless tools
  • 2000mAh Li-Ion capacity supports extended runtime
  • Replaces Milwaukee 48-11-2001 and 48-11-0490 packs
  • Banshee cells built for reliable performance
  • 2-year warranty included with purchase

Product Identity

This BatteryJack inc. replacement battery delivers 4V and 2000mAh capacity using Li-Ion chemistry. It is built to replace Milwaukee part 48-11-2001 and fits every M4 cordless tool in the lineup. The unit comes with a two-year warranty and uses Banshee-branded cells.

Who It Suits

Tradespeople and DIY owners who run Milwaukee M4 tools and need a direct 4V 2000mAh substitute will find this a straightforward swap. Users whose equipment demands a different voltage, a higher amp-hour rating or a separate battery platform should look elsewhere.

Deciding Specification

The single figure that determines compatibility is the 4V 2000mAh rating matched to Milwaukee part 48-11-2001; only tools designed for that exact voltage and capacity will operate correctly with this pack.

How it compares

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

Price $17.99
Cheaper than about 70% of the 985 comparable items (median $28.99).

Specifications

Product
Brand nameBanshee
Product typeBatteries

Questions about this item

How do I install this 4V 2000mAh Li-Ion battery in my M4 cordless tool, and what step is often missed?

Slide the battery into the tool until the latch clicks securely; the step users miss is confirming the latch is fully engaged so the pack will not disconnect under vibration.

What maintenance or replacement will this 2000mAh pack need over its life?

Expect capacity to fade after several hundred charge cycles; the 2-year warranty covers premature failure, but plan to replace the pack when run-time no longer meets your needs.

What limit appears first when I run this 4V battery continuously on high-draw M4 tools?

The 2000mAh capacity depletes quickly under heavy load, so run-time is the first limit you will hit during sustained use.

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