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Milwaukee M12 2Ah battery prices

Every genuine Milwaukee M12 2Ah battery listing we found on eBay, single batteries and multi-packs, ranked by price per amp-hour including shipping. Updated Oct 11, 2026 15:16 UTC.

Cheapest new, per Ah$10.74

Cheapest used, per Ah$9.99

Cheapest single battery$18.00

$/Ah	Price	Shipping	Ah	Wh	$/Wh	Part	Condition	Listing
$9.99	$19.99	free	2	24	$0.83	48-11-2420	Used	Genuine Milwaukee 48-11-2420 Battery 12 Volt 2.0Ah M12 Red Lithium Ion
$10.74	$42.95	free	2 ×2	48	$0.89	48-11-2420	Open box	Milwaukee Battery 12v 2.0 Ah 48-11-2420 M12 Red Lithium Ion (2 pack)
$11.24	$44.95	free	2 ×2	48	$0.94	48-11-2420	Used	Genuine Milwaukee M12 2 Pack CP2.0 2.0Ah Batteries 48-11-2420 x2 OEM 12V NEW
$11.24	$22.49	free	2	24	$0.94	48-11-2420	Used	Milwaukee 48-11-2420 Batteries 12 Volt 2.0Ah M12 Red Lithium Ion
$12.47	$24.95	free	2	24	$1.04	48-11-2420	Used	Milwaukee 48-11-2420 Batteries 12 Volt 2.0Ah M12 Red Lithium Ion (E10048824)
$12.49	$24.99	free	2	24	$1.04		Open box	Milwaukee M12 12-Volt Lithium-Ion 2.0 Ah Compact Battery Pack
$12.50	$25.00	free	2	24	$1.04	48-11-2420	Used	MILWAUKEE 48-11-2420 M12 2.0AH LI-ION BATTERY (B26010647) · 2 available
$12.50	$50.00	free	2 ×2	48	$1.04	48-11-2420	Open box	Milwaukee M12 2.0 Ah Lithium-Ion Battery - Red (48-11-2420) *Lot Of 2*
$12.50	$25.00	free	2	24	$1.04	48-11-2420	Open box	Milwaukee M12 Lithium-Ion Battery - Red (48-11-2420)
$12.51	$25.01	free	2	24	$1.04	48-11-2420	Used	Milwaukee M12 Red Lithium 12V 2Ah Battery - Red (48-11-2420) Original OEM
$12.89	$25.78	$6.95	2	24	$1.07	48-11-2420	Used	Milwaukee 48-11-2420 M12 RED LITHIUM 12V 2.0 Ah Single Battery - FAST SHIPPING
$13.00	$18.00	+ ship	2	24	$1.08	48-11-2420	Used	Milwaukee M12 REDLITHIUM CP2.0 12V 2.0Ah Li-Ion Battery Pack 48-11-2420
$13.00	$26.00	$7.00	2	24	$1.08	48-11-2420	Open box	G) Milwaukee M12 Lithium-Ion Battery - Red (48-11-2420)
$13.45	$26.90	free	2	24	$1.12		New	Milwaukee M12 REDLITHIUM CP2.0 12V 2.0Ah Battery Pack - Red/Black · 5 available
$13.49	$26.98	$7.99	2	24	$1.12	48-11-2420	Used	Milwaukee M12 Lithium-Ion Battery - Red (48-11-2420)
$13.50	$27.00	free	2	24	$1.12	48-11-2420	New	Genuine Milwaukee 48-11-2420 12 Volt M12 REDLITHIUM CP2.0 Battery
$13.75	$27.50	free	2	24	$1.15	48-11-2420	New	Milwaukee 48-11-2420 12 Volt M12 REDLITHIUM CP2.0 Battery
$13.95	$27.90	$7.00	2	24	$1.16	48-11-2420	Open box	Milwaukee M12 REDLITHIUM CP2.0 12V 2.0Ah Li-Ion Battery Red 48-11-2420
$13.97	$27.95	free	2	24	$1.16	48-11-2420	Open box	Genuine OEM Milwaukee 48-11-2420 Red Lithium CP 2.0 M12 Battery 12 Volt - New
$13.99	$27.98	$5.99	2	24	$1.17	48-11-2401	Used	Milwaukee M12 REDLITHIUM CP 2.0 2Ah 12V Li-Ion Battery Red 48-11-2401 A
$13.99	$27.98	$4.99	2	24	$1.17	48-11-2420	Open box	Milwaukee 48-11-2420 M12 12-Volt Lithium-Ion 2.0 Ah Compact Battery Pack
$13.99	$27.99	free	2	24	$1.17	48-11-2420	New	Genuine Milwaukee 48-11-2420 12 Volt M12 REDLITHIUM CP2.0 Battery
$14.00	$28.00	free	2	24	$1.17	48-11-2420	Open box	Milwaukee M12 red lithium CP 2.0 battery 48-11-2420
$14.32	$28.64	$5.65	2	24	$1.19	48-11-2420	Used	Genuine Milwaukee M12 CP2.0 2.0Ah Battery 48-11-2420
$14.47	$28.95	free	2	24	$1.21	48-11-2420	New	NEW GENUINE Milwaukee M12 Red Lithium CP2.0 2.0Ah Battery 48-11-2420
$14.49	$28.99	$6.99	2	24	$1.21	48-11-2420	Used	Milwaukee 48-11-2420 M12 Red Lithium CP2.0 2.0Ah Battery OEM 12V USED
$14.49	$28.99	$4.00	2	24	$1.21		Open box	Milwaukee M12 REDLITHIUM CP2.0 12V 2.0Ah Battery - Red/Black
$14.49	$28.99	free	2	24	$1.21	48-11-2420	New	New Genuine Milwaukee 48-11-2420 M12 RED LITHIUM 12V CP 2 2.0 Ah Tool Battery
$14.68	$29.35	$10.99	2	24	$1.22	48-11-2420	Open box	Genuine Milwaukee M12 Red Lithium CP2.0 2.0Ah Battery 48-11-2420 OEM 12 Volt NEW
$14.89	$29.78	free	2	24	$1.24	48-11-2420	New	Genuine Milwaukee M12 Red Lithium CP2.0 2.0Ah Battery 48-11-2420 OEM 12 Volt NEW
$14.95	$29.89	free	2	24	$1.25	48-11-2420	New	GENUINE Milwaukee M12 Red Lithium CP2.0 2.0Ah Battery 48-11-2420 NEW
$14.97	$29.94	$7.95	2	24	$1.25	48-11-2420	Open box	NEW Milwaukee 12 Volt M12 Battery CP2.0Ah Red Lithium 48-11-2420
$14.97	$29.95	free	2	24	$1.25	48-11-2420	Used	MILWAUKEE M12 REDLITHIUM CP2.0 12V 2.0AH BATTERY 48-11-2420 TESTED WORKING
$14.97	$29.95	free	2	24	$1.25	48-11-2420	Open box	Milwaukee M12 REDLITHIUM CP2.0 2.0Ah Battery 48-11-2420 Red/Black
$14.97	$29.95	free	2	24	$1.25	48-11-2420	Open box	Milwaukee M12 REDLITHIUM CP2.0 Battery 48-11-2420 12V Li-Ion – OEM – Ships Fast!
$14.97	$29.95	free	2	24	$1.25	48-11-2420	New	NEW GENUINE Milwaukee M12 Red Lithium CP2.0 2.0Ah Battery 48-11-2420
$14.98	$29.97	free	2	24	$1.25	48-11-2420	New	(1) New Genuine Milwaukee M12 48-11-2420 2.0 AH Battery CP 12V 12 Volt
$14.99	$29.99	free	2	24	$1.25	48-11-2420	Used	Cracked! Milwaukee 48-11-2420 12v M12 2.0 Amp Red Lithium Ion Battery Pack Only
$14.99	$29.99	free	2	24	$1.25		Open box	Milwaukee M12 REDLITHIUM 12V Lithium-Ion Battery 2.0Ah Red Li-Ion No Box!
$14.99	$29.99	$5.00	2	24	$1.25	48-11-2420	Open box	Genuine Milwaukee M12 12V REDLITHIUM CP2.0 Ah Battery 48-11-2420 OEM Compact⁠
$14.99	$29.99	free	2	24	$1.25	48-11-2420	New	Milwaukee 48-11-2420 Red Lithium CP 2.0 M12 Battery 12 Volt - New
$15.85	$31.70	$7.00	2	24	$1.32	48-11-2420	New	Milwaukee M12 Red Lithium-Ion CP 2.0 Battery - Red (48-11-2420)
$15.88	$31.76	$8.88	2	24	$1.32	48-11-2420	Open box	Milwaukee M12 REDLITHIUM CP2.0 12V 2.0Ah Li-Ion Battery 48-11-2420 new open box
$15.99	$31.99	free	2	24	$1.33	48-11-2420	Open box	CERTIFIED Milwaukee M12 Red Lithium CP2.0 Ah Battery 48-11-2420 OEM 12 Volt NEW
$16.14	$32.29	free	2	24	$1.35	48-11-2420	New	Milwaukee 48-11-2420 M12 REDLITHIUM 2.0 Compact Battery Pack (1-Pack)
$16.25	$32.49	$6.50	2	24	$1.35	48-11-2420	Used	Milwaukee 48-11-2420 M12 REDLITHIUM 2.0 AH Battery Pack
$16.50	$32.99	free	2	24	$1.37	48-11-2420	New	Genuine Milwaukee M12 2.0Ah Battery Red Lithium CP2.0 48-11-2420 NEW
$16.50	$33.00	free	2	24	$1.38	48-11-2420	Used	Milwaukee M12 Lithium-Ion Battery - Red (48-11-2420) B82
$17.00	$33.99	free	2	24	$1.42	48-11-2420	New	Genuine Milwaukee M12 Red Lithium CP2.0 2.0Ah Battery 48-11-2420 OEM 12 Volt NEW
$17.00	$33.99	$1.99	2	24	$1.42		New	Milwaukee M12 REDLITHIUM CP 2 Ah Lithium-Ion Battery
$17.00	$34.00	free	2	24	$1.42	48-11-2420	New	Milwaukee M12 2 ah Lithium-Ion Battery - Red (48-11-2420)
$17.48	$34.95	free	2	24	$1.46	48-11-2420	New	GENUINE Milwaukee 48-11-2420 M12 REDLITHIUM 2.0 Compact Battery Pack
$17.50	$34.99	free	2	24	$1.46	48-11-2420	Open box	Milwaukee \| M12 \| Red \| Lithium 12V \| 2Ah Battery \| Red (48-11-2420)
$17.50	$34.99	free	2	24	$1.46	48-11-2420	New	BRAND NEW - Milwaukee M12 REDLITHIUM CP 2 Ah Lithium-Ion Battery 48-11-2420
$17.75	$35.50	$3.50	2	24	$1.48	48-11-2420	Open box	Milwaukee M12 Lithium-Ion Battery - Red (48-11-2420) NEVER USED
$17.84	$35.69	$5.70	2	24	$1.49	48-11-2420	New	#385 Milwaukee M12 Red Lithium-ion CP2.0Ah 12 Volt Batteries 48-11-2420
$18.00	$36.00	$10.00	2	24	$1.50	48-11-2420	Used	MILWAUKEE TOOLS 48-11-2420 M12 RED LITHIUM CP2.0 BATTERY (P24036886)
$18.11	$36.21	$10.50	2	24	$1.51	48-11-2420	New	Genuine Milwaukee M12 Red Lithium CP2.0 2.0Ah Battery 48-11-2420 OEM 12 Volt NEW
$18.50	$36.99	free	2	24	$1.54	48-11-2420	New	Milwaukee M12 Lithium-Ion Battery - Red (48-11-2420)
$18.99	$37.98	free	2	24	$1.58		Open box	New! Genuine Milwaukee M12 12-Volt Red Lithium CP 2.0Ah Battery [Open Box]
$19.00	$29.99	+ ship	2	24	$1.58	48-11-2420	Open box	Milwaukee 48-11-2420 M12 12-Volt Lithium-Ion 2Ah Compact Battery Pack
$19.00	$29.99	+ ship	2	24	$1.58	48-11-2420	New	Milwaukee M12 Battery Red Lithium 2.0Ah 12 Volt Genuine 48-11-2420 NEW
$19.50	$39.00	free	2	24	$1.62	48-11-2420	New	New Genuine Milwaukee M12 48-11-2420 2.0 AH Battery CP 12V 12 Volt
$20.00	$39.99	$5.00	2	24	$1.67	48-11-2420	Open box	Milwaukee M12 12V 2.0Ah CP REDLITHIUM Lithium-Ion Battery 48-11-2420 OEM
$20.00	$39.99	free	2	24	$1.67	48-11-2420	New	Milwaukee 48-11-2420 M12 Lithium-Ion Battery - Red New In Package
$20.06	$32.12	+ ship	2	24	$1.67	48-11-2420	New	OEM GENUINE Milwaukee M12 48-11-2420 2.0 AH Battery CP 12V Volt CP2.0 REDLITHIUM
$20.25	$32.50	+ ship	2	24	$1.69	48-11-2420	New	Genuine Milwaukee M12 Red Lithium CP2.0 2.0Ah Battery 48-11-2420 OEM 12 Volt NEW
$21.25	$42.50	free	2	24	$1.77	48-11-2420	Open box	Milwaukee M12 Lithium 12V \| 2Ah Battery (48-11-2420)
$21.50	$42.99	free	2	24	$1.79	48-11-2420	New	Milwaukee M12 Lithium-Ion Battery - Red (48-11-2420)
$21.50	$35.00	+ ship	2	24	$1.79	48-11-2420	New	Milwaukee M12 Lithium-Ion Battery - Red (48-11-2420)
$22.95	$45.90	$7.95	2	24	$1.91	48-11-2420	New	NEW Genuine Milwaukee 48-11-2420 M12 REDLITHIUM 2.0 Compact Battery Sealed
$23.12	$46.25	$5.25	2	24	$1.93		New	Milwaukee M12 REDLITHIUM CP 2 Ah Lithium-Ion Battery
$24.82	$49.65	free	2	24	$2.07	48-11-2420	Open box	Milwaukee M12 Lithium-Ion Battery 12V 2.0Ah - Red (48-11-2420)™
$24.88	$49.75	free	2	24	$2.07		New	Milwaukee M12 12-Volt Lithium-Ion 2.0 Ah Compact Battery Pack NEW CP2.0
$24.98	$49.95	free	2	24	$2.08	48-11-2420	New	Milwaukee 48-11-2420 M12 REDLITHIUM 2.0 Compact Battery Pack
$25.00	$49.99	free	2	24	$2.08		Open box	Milwaukee Compact Battery Pack M12 12-Volt Lithium-Ion 2.0 Ah
$25.00	$49.99	free	2	24	$2.08	48-11-2420	Open box	Milwaukee 48-11-2420 M12 Battery 2.0Ah Lithium-Ion
$25.00	$49.99	free	2	24	$2.08	48-11-2420	New	OEM Genuine Milwaukee 48-11-2420 12 Volt M12 REDLITHIUM CP2.0 Battery
$25.00	$50.00	free	2	24	$2.08	48-11-2420	New	Milwaukee M12 2.0Ah REDLITHIUM Battery Pack 12V 48-11-2420 OEM
$25.49	$50.98	$10.99	2	24	$2.12	48-11-2420	New	Milwaukee M12 REDLITHIUM CP2.0 Battery 12V 48-11-2420 NWOB
$26.45	$52.90	$12.95	2	24	$2.20	48-11-2420	New	Milwaukee 48-11-2420 , M12 RedLithium 2.0 AH Battery
$26.50	$45.00	+ ship	2	24	$2.21		New	M12 12-Volt Lithium-Ion 2.0 Ah Compact Battery Pack Milwaukee
$27.00	$45.99	+ ship	2	24	$2.25	48-11-2420	Open box	Milwaukee M12 CP2.0 2.0Ah Battery (48-11-2420) Charging Kit w/ Milwuakee Bag
$27.44	$54.88	$4.89	2	24	$2.29	48-11-2420	Open box	2 New Genuine Milwaukee 48-11-2420 Batteries 12 Volt 2.0Ah M12 Red Lithium Ion
$27.48	$54.95	free	2	24	$2.29	48-11-2420	Open box	2 -Brand New Genuine Milwaukee M12 2.0 amp hr Red Lithium Batt's 48-11-2420
$27.48	$54.95	free	2	24	$2.29	48-11-2420	New	Milwaukee 48-11-2420 M12 12V 2.0Ah REDLITHIUM Compact Battery
$27.50	$54.99	free	2	24	$2.29	48-11-2420	New	Milwaukee 48-11-2420 M12 12V Lithium-Ion 2.0Ah Compact Battery Pack
$29.00	$50.00	+ ship	2	24	$2.42	48-11-2420	Used	Milwaukee M12 Lithium-Ion Battery - Red (48-11-2420)

Showing 88 of 88 listings

Buying tips

Only genuine batteries are listed: we drop "for DeWalt / compatible / replacement" packs, whose stated capacity is often far above the real one, and capacities the maker does not sell for that platform. Within one platform the price per Ah is a fair comparison; across platforms compare the price per Wh, because an Ah of a 12V pack holds less energy than an Ah of an 18V or 40V pack. High-output packs (Milwaukee High Output and Forge, DeWalt PowerStack, FlexVolt, Ryobi HP) deliver more power to demanding tools at a higher price per Ah.

How this table works

We collect Buy It Now listings from eBay US several times a day in the Power Tool Batteries category, filtered by the maker's brand and voltage, and divide the total price, including shipping, by the amp-hours (multi-packs by their total). FlexVolt packs are counted at their 20V rating. We remove chargers, kits with tools, adapters, holders, empty cases, dead or untested packs, aftermarket "compatible" batteries and offers far below every other listing.