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Two red lithium-ion battery packs side by side

THISS

THISS 2Pack 12V 3.5Ah Lithium Ion Battery

SKU CH-6JGK-F7EA2

Two 12 V 3.5 Ah lithium-ion packs compatible with Milwaukee M12 tools and part numbers 48-11-2401, 48-11-2420 and more

  • Battery typeLithium Ion
  • Product typeBatteries
  • Extended runtime with 3.5 Ah capacity
  • CE certified to match OEM specifications
  • Compatible with Milwaukee M12 cordless tool range
  • Lithium-ion chemistry for consistent power delivery
  • Supports drills, impact wrenches and inspection cameras

Two-pack 12 V 3.5 Ah lithium-ion cells

This twin pack supplies two 12 V 3.5 Ah lithium-ion batteries built to fit the Milwaukee M12 cordless platform. They replace part numbers such as 48-11-2401 and 48-11-2420 across a wide range of drills, drivers, impact wrenches, inspection cameras and measuring tools. The set is aimed at tradespeople and serious DIY users who want a spare cell on charge while the other powers the job. CE certification confirms the packs meet the declared safety standards.

Low heat and steady output in daily use

Lithium-ion chemistry keeps the cells cool during typical drilling, driving or fastening tasks, so the tool body stays comfortable in the hand. No active cooling is required and the packs run silently, adding no audible noise to the tool itself. Internal protection circuitry guards against over-discharge and short circuits, maintaining consistent voltage until the cell is depleted. The 3.5 Ah rating delivers extended run-time compared with lower-capacity alternatives.

Rugged housing with direct slide-on fit

Each battery moulds into the M12 slide-style interface, locking securely with the tool’s latch and releasing with a single press. Contacts are recessed to resist dust and moisture ingress on site. The two-pack format means one cell can charge while the other works, eliminating downtime for crews that run multiple M12 tools. Users needing higher capacity or a different voltage platform will need to look elsewhere.

How it compares

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

Price $21.99
Cheaper than about 62% of the 985 comparable items (median $28.99).

Specifications

Product
Product typeBatteries
Power
Battery typeLithium Ion

Questions about this item

How do I install the 12 V 3.5 Ah lithium-ion pack into a Milwaukee M12 tool, and what step is often missed?

Align the pack’s slide rails with the tool’s battery cavity, push straight in until the latch clicks, then tug gently to confirm it is locked; the missed step is skipping that tug test.

What maintenance or replacement will the 3.5 Ah lithium-ion pack need over time?

Expect gradual capacity loss after several hundred charge cycles; store at roughly half charge in a cool, dry place and replace the pack when run-time no longer meets the demands of your M12 tools.

What limit appears first when the 12 V 3.5 Ah pack runs sustained high-draw tasks?

The 3.5 Ah capacity depletes quickly under continuous heavy load, so run-time becomes the limiting factor before the pack overheats or hits a voltage cut-off.

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