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Milwaukee M18 6Ah battery prices

Every genuine Milwaukee M18 6Ah 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$8.08
Cheapest used, per Ah$9.66
Cheapest single battery$57.99
Condition
$/AhPrice ShippingAhWh $/WhPartCondition Listing
$8.08$97.00free6 ×2216$0.45New2 x Milwaukee M18 REDLITHIUM XC6.0 6.0Ah Battery 18V 6AH pack of 2 NEW SEALEDHigh output
$8.08$97.00free6 ×2216$0.45NewPack 2-Pack 18V 6Ah Milwaukee M18 REDLITHIUM XC 6.0 BatteryHigh output
$9.66$57.99free6108$0.54UsedMilwaukee Red Lithium XC 6.0 M18High output
$10.00$59.99free6108$0.5648-11-1865UsedMilwaukee 48-11-1865 M18 18V XC 6.0Ah High Output Battery REDLITHIUM - Free S&HHigh output
$10.00$60.00free6108$0.5648-11-1865UsedMilwaukee 48-11-1865 M18 18V Battery- Preowned Excellent Condition
$10.00$60.00$10.006108$0.56UsedMilwaukee M18 High Output XC 6.0Ah BatteryHigh output
$10.00$60.00free6108$0.5648-11-1865UsedMilwaukee M18 High Output 18V XC 6.0ah Battery 48-11-1865High output
$10.83$64.99free6108$0.6048-11-1860NewNew One Pack Milwaukee 48-11-1860 6.0 AH Battery M18 XC 6.0 New In Pack SINGLEHigh output
$10.83$65.00free6108$0.6048-11-1865UsedMilwaukee 48-11-1865 M18 18V XC 6.0Ah High Output Battery -USED - FREE SHIPPINGHigh output
$11.00$57.99+ ship6108$0.6148-11-1865UsedMilwaukee M18 REDLITHIUM HIGH OUTPUT XC6.0 6.0Ah Battery Pack 48-11-1865High output
$11.33$59.99+ ship6108$0.6348-11-1865UsedMilwaukee 48-11-1865 M18 18V XC 6.0Ah High Demand Battery -USEDHigh output
$11.46$68.79free6108$0.64UsedMilwaukee Electric Tools MLW48-11-1865 M18 Redlithium XC 6.0 Battery #2High output
$11.66$69.99free6108$0.6548-11-1865UsedMilwaukee M18 RedLithium High Output XC 6.0 Battery Black 48-11-1865 P21 (LOOK)High output
$11.66$69.99free6108$0.65UsedMilwaukee M18 RedLithium XC6.0 BatteryHigh output
$11.66$69.99free6108$0.6548-11-1865UsedMilwaukee 48-11-1865 M18 18V XC 6.0Ah High Output Battery -USED - FREE SHIPPINGHigh output
$11.67$70.00free6108$0.6548-11-1860UsedMilwaukee 48-11-1860 M18 REDLITHIUM XC6.0 Battery Pack - BlackHigh output
$12.00$71.99free6108$0.6748-11-1865UsedMilwaukee M18 REDLITHIUM High Output XC6.0 18V 6.0Ah Li-Ion Battery 48-11-1865High output
$12.13$72.76$13.886108$0.6748-11-1865Open boxMilwaukee 48-11-1865 M18 18V XC 6.0Ah High Output Battery REDLITHIUM NEWHigh output
$12.50$74.99free6108$0.6948-11-1865UsedMilwaukee M18 REDLITHIUM HIGH OUTPUT XC6.0 18V 6.0Ah Li-Ion Battery 48-11-1865High output
$12.50$74.99free6108$0.6948-11-1865UsedGENUINE Milwaukee M18 REDLITHIUM HIGH OUTPUT XC 6.0Ah Battery 48-11-1865High output
$12.50$74.99free6108$0.6948-11-1865Open boxNEW Milwaukee M18 18V 6.0Ah XC High Output REDLITHIUM Battery 48-11-1865High output
$12.99$77.94$12.996108$0.7248-11-1865UsedMilwaukee M18 RedLithium High Output XC6.0 Battery Pack (48-11-1865) 237501 #1High output
$13.00$77.99$3.006108$0.7248-11-1865Open boxMilwaukee M18 18V 6.0Ah XC High Output REDLITHIUM Battery 48-11-1865 OEMHigh output
$13.17$79.00free6108$0.7348-11-1865UsedMILWAUKEE TOOLS 48-11-1865 - M18 XC6.0 HIGH OUTPUT RED LITHIUM ION B (G29026887)High output
$13.17$79.00free6108$0.73NewNEW! GENUINE M18 Milwaukee REDLITHIUM XC6.0 BatteryHigh output
$13.32$79.95free6108$0.74UsedMILWAUKEE XC6.0 M18 BATTERYHigh output · 2 available
$13.33$79.99free6108$0.74UsedMilwaukee M18 18-Volt Lithium-Ion High Output Battery Pack 6.0AhHigh output
$13.33$79.99free6108$0.7448-11-1865Open boxMilwaukee 48-11-1865 M18 18V XC 6.0Ah High Output Battery REDLITHIUM NEWHigh output
$13.33$80.00$10.006108$0.7448-11-1865UsedMilwaukee M18 RedLithium High Output XC6.0 Battery Pack - Black (48-11-1865)High output
$13.33$80.00free6108$0.74NewMILWAUKEE TOOLS M18 BATTERY Red Lithium XC6.0 5INR22/71-2 (P1901High output
$13.33$80.00$10.006108$0.74Open boxMilwaukee M18 REDLITHIUM HIGH OUTPUT XC6.0 18V 6.0Ah Li-Ion Battery - BlackHigh output
$13.50$80.99free6108$0.7548-11-1865NewMilwaukee 48-11-1865 M18 18V XC 6.0Ah High Output Battery REDLITHIUM NEWHigh output
$13.83$75.00+ ship6108$0.7748-11-1865NewMilwaukee M18 REDLITHIUM HIGH OUTPUT XC6.0 18V 6Ah Li-Ion 48-11-1865High output
$13.98$83.90$8.956108$0.7848-11-1865UsedMILWAUKEE TOOLS 48-11-1865 - M18 XC6.0 (SBL015895)High output
$14.16$84.99$9.996108$0.7948-11-1865UsedMilwaukee Battery 48-11-1865 M18 18V XC 6.0Ah High Output RED LITHIUMHigh output
$14.16$84.99free6108$0.7948-11-1865New(1) NEW IN PACK Milwaukee M18 48-11-1865 6.0 AH Battery 18V XC High Output 18VHigh output
$14.16$84.99free6108$0.7948-11-1865NewMilwaukee 48-11-1865 M18 18V XC 6.0Ah High Output Battery REDLITHIUM NEWHigh output
$14.17$85.00free6108$0.7948-11-1865NewMilwaukee 48-11-1865 M18 18-Volt REDLITHIUM High Output Battery Pack XC6.0Ah NEWHigh output
$14.33$85.99free6108$0.8048-11-1865UsedMilwaukee 48-11-1865 M18 18-Volt Lithium-Ion High Output 6.0Ah Battery PackHigh output
$14.83$89.00free6108$0.8248-11-1865UsedMILWAUKEE M18 XC6.0 BATTERY MODEL 48-11-1865 (H83004738)High output
$15.00$89.99$14.996108$0.8348-11-1865UsedMilwaukee 48-11-1865 M18 18V XC 6.0Ah High Output Battery REDLITHIUMHigh output
$15.00$89.99free6108$0.8348-11-1865NewMilwaukee M18 RedLithium High Output XC6.0 Battery Pack - Black (48-11-1865)High output · 2 available
$15.00$89.99free6108$0.83Open boxMilwaukee- M18 XC 6.0Ah High Output Battery REDLITHIUMHigh output
$15.83$95.00free6108$0.88NewMilwaukee M18 RedLithium High Output XC6.0 Battery Pack BlackHigh output · 3 available
$16.00$95.98$5.996108$0.8948-11-1865NewReal GENUINE OEM M18 Milwaukee 48-11-1865 6.0 HO Battery in Original PACKAGING
$16.33$97.97free6108$0.9148-11-1865New(1) GENUINE BARE M18 Milwaukee 48-11-1865 6.0 AH Battery 18V 18 Volt High OutputHigh output
$16.33$97.97free6108$0.9148-11-1865New(1) NEW IN PACK Milwaukee M18 48-11-1865 6.0 AH Battery 18V XC High Output 18VHigh output
$16.50$99.00free6108$0.9248-11-1865NewMilwaukee 48-11-1865 M18 18V XC 6.0Ah High Output Battery REDLITHIUM NEWHigh output
$17.67$98.00+ ship6108$0.9848-11-1860NewMilwaukee 48-11-1860 M18 REDLITHIUM XC6.0 Battery Pack - BlackHigh output

Showing 49 of 49 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.