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Milwaukee M18 8Ah battery prices

Every genuine Milwaukee M18 8Ah 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—
Cheapest used, per Ah$8.56
Cheapest single battery$68.47
Condition
$/AhPrice ShippingAhWh $/WhPartCondition Listing
$8.56$68.47free8144$0.4848-11-1880UsedGENUINE MILWAUKEE [48-11-1880] M18 RED LITHIUM XC 8.0 AH 18V HIGH OUTPUT BATTERYHigh output
$9.37$74.99free8144$0.5248-11-1880UsedMilwaukee 48-11-1880 M18 18V Battery
$10.00$79.99free8144$0.5648-11-1880UsedMilwaukee M18 Battery Red Lithium High Output XC8.0 48-11-1880 - TestedHigh output
$10.37$74.99+ ship8144$0.5848-11-1880UsedMilwaukee M18 REDLITHIUM HIGH OUTPUT XC8.0 8.0Ah Battery Pack 48-11-1880High output
$10.37$82.99free8144$0.5848-11-1880UsedMilwaukee M18 RedLithium High Output XC8.0 Battery Pack - Black (48-11-1880)High output
$10.62$84.99$9.998144$0.5948-11-1880UsedOEM Milwaukee 48-11-1880 M18 18V 8.0Ah REDLITHIUM XC8.0 Battery.High output · 2 available
$11.12$89.00$9.008144$0.62UsedMilwaukee M18 REDLITHIUM High Output XC8.0 18V 8.0Ah Battery - BlackHigh output
$11.25$89.98$9.998144$0.62UsedMilwaukee M18 High Output XC8.0 8Ah 18V Battery Pack (P03073202)High output
$11.25$89.99free8144$0.62UsedMilwaukee M18 REDLITHIUM XC8.0 18V 8Ah Li-Ion BatteryHigh output
$11.91$95.29free8144$0.66UsedMilwaukee M18 High Output XC8.0 8Ah 18V Battery Pack, Black/RedHigh output
$12.25$89.99+ ship8144$0.6848-11-1880UsedMilwaukee M18 RedLithium High Output XC8.0 Battery Pack - Black (48-11-1880)High output
$12.38$99.00free8144$0.69UsedMILWAUKEE TOOLS M18 XC8.0AH BATTERY (H83003417)High output

Showing 12 of 12 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.