THISS 2Pack 12V 3.5Ah Lithium Ion Battery

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.