{"product_id":"milwaukee-m18-replacement-battery-18v","title":"Milwaukee M18 Replacement Battery 18V Li-ion 5.0Ah–12.0Ah High Capacity","description":"\n\u003cp\u003eNeed a fresh battery for your M18 tools without paying dealer prices? This 18V lithium-ion pack drops straight into your Milwaukee M18 lineup — drills, drivers, grinders, saws, you name it. Just pick the capacity that fits the job: \u003cstrong\u003e5.0, 6.0, 8.0, 9.0, or 12.0Ah\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrop-in fit\u003c\/strong\u003e for Milwaukee M18 18V tools\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal li-ion cells\u003c\/strong\u003e — 5.0–12.0Ah so runtime matches your workload\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOn-pack LED gauge\u003c\/strong\u003e — check remaining charge in a second\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6-layer protection\u003c\/strong\u003e — overcharge, over-discharge, short-circuit, over-current, over-voltage, over-heat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTough PC+ABS shell\u003c\/strong\u003e that shrugs off jobsite drops\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecs at a glance\u003c\/h2\u003e\n\u003ctable class=\"product-specs\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e18V (M18 system)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity options\u003c\/td\u003e\n\u003ctd\u003e5.0Ah \/ 6.0Ah \/ 8.0Ah \/ 9.0Ah \/ 12.0Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCell type\u003c\/td\u003e\n\u003ctd\u003eLithium-ion (li-ion)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharge gauge\u003c\/td\u003e\n\u003ctd\u003eBuilt-in LED indicator (25 \/ 50 \/ 75 \/ 100%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection\u003c\/td\u003e\n\u003ctd\u003eOvercharge, over-discharge, short-circuit, over-current, over-voltage, over-heat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing\u003c\/td\u003e\n\u003ctd\u003ePC + ABS, drop-resistant shell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApprox. size\u003c\/td\u003e\n\u003ctd\u003e4.4 × 3.0 × 2.9 in (11.2 × 7.7 × 7.3 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible with\u003c\/td\u003e\n\u003ctd\u003eMilwaukee M18 18V tools\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e12 months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReturns\u003c\/td\u003e\n\u003ctd\u003e30-day hassle-free\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eRun time you can plan around\u003c\/h2\u003e\n\u003cp\u003eHere's the honest part: capacity decides how long you keep working between charges. A 5.0Ah pack handles quick trim and fastening jobs all day. Step up to an 8.0Ah or 12.0Ah when you're drilling holes, breaking down pallets, or running a circular saw non-stop. Same voltage, same fit — just way more uptime.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0725\/4097\/9336\/files\/ee581317_4ca6f46b-d7ea-4825-9668-b27e8ae45827.jpg?v=1786775907\" alt=\"Milwaukee M18 replacement battery high capacity 18V\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\n\n\u003ch2\u003eA battery that talks back\u003c\/h2\u003e\n\u003cp\u003eNo more guessing when a pack is about to die mid-cut. Tap the button on top and the LED gauge shows 25%, 50%, 75%, or 100%. You'll know exactly when to swap and when to charge.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0725\/4097\/9336\/files\/27f925d4_12d0f2e0-d501-4bdf-899a-bed7df0640f4.jpg?v=1786775906\" alt=\"M18 battery LED power indicator gauge charging level\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\n\n\u003ch2\u003eSafety circuits that actually kick in\u003c\/h2\u003e\n\u003cp\u003eThese packs run a dedicated battery management system. If something goes sideways — overcharge, over-discharge, a short, a spike — the circuit opens and shuts things down instead of letting the cell heat up. That's the peace of mind you want on a jobsite.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0725\/4097\/9336\/files\/c543b16a_db113a99-7626-45bd-96bc-b322d5ec5c6c.jpg?v=1786775906\" alt=\"M18 li-ion battery safety protection circuit board cells\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\n\n\u003ch2\u003eFits the tools you already own\u003c\/h2\u003e\n\u003cp\u003eBuilt for the M18 18V platform, so it works with the tools you probably carry right now: drill and driver, impact wrench, angle grinder, circular saw, reciprocating saw, work light, and more. One pack, whole system.\u003c\/p\u003e\n\n\u003ch2\u003eSize that matches the originals\u003c\/h2\u003e\n\u003cp\u003eRoughly 4.4 × 3.0 × 2.9 inches (11.2 × 7.7 × 7.3 cm), with a compact profile that fits tight spaces under a workbench or in a gang box. Same footprint you're used to.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0725\/4097\/9336\/files\/f31942f2_012567c2-3a45-41ef-b6b6-b3bdeaaf354f.jpg?v=1786775906\" alt=\"M18 replacement battery dimensions in inches measurement\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0725\/4097\/9336\/files\/56efcca9_bb74b1b2-8485-4218-8910-2f3488ba369a.jpg?v=1786775907\" alt=\"M18 18V battery connector interface and shell detail\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\n\n\u003ch2\u003eWhere it earns its keep\u003c\/h2\u003e\n\u003cp\u003eFraming, cabinetry, auto repair, HVAC, landscaping — any trade that lives on cordless tools. Keep one on the charger and one in the truck, and you'll stop hunting for a spare mid-task.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0725\/4097\/9336\/files\/4fff03c1_b181ee9f-6324-4422-93d7-e2ee99d5f543.jpg?v=1786775905\" alt=\"M18 battery powering cordless power tools in use\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0725\/4097\/9336\/files\/ae92ba9e_585f61ca-6f53-40b1-b8c3-8994935851ad.jpg?v=1786775906\" alt=\"pair of Milwaukee M18 replacement batteries 18V\" style=\"max-width:100%;height:auto;\"\u003e\u003c\/p\u003e\n\n\u003ch2\u003ePair it with a matching charger\u003c\/h2\u003e\n\u003cp\u003eRunning low and need to top off fast? Check out our \u003ca href=\"\/products\/replacement-li-ion-battery-charger-multi-voltage-charger-for-milwaukee-m18-14-4v-18v-48-11-1850-48-11-1840-48-11-1828-48-11-1815\"\u003emulti-voltage M18-compatible charger\u003c\/a\u003e to keep every pack in your bag hot. And if you use heavy-draw tools daily, you may also want to browse our \u003ca href=\"\/products\/suitable-for-milwaukee-m18-lithium-ion-battery-electric-drill-and-angle-grinder-milwaukee-18v-power-tool-battery\"\u003eother M18-compatible battery options\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003cdiv class=\"product-faq\"\u003e\n\u003ch3\u003eWill this fit my Milwaukee M18 drill?\u003c\/h3\u003e\n\u003cp\u003eIf the tool runs on the M18 18V platform, yes. This pack uses the same drop-in interface, so it seats and locks the same way your factory pack does. It's a straight swap — no wiring, no adapters.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-faq\"\u003e\n\u003ch3\u003eIs a higher Ah battery okay to use?\u003c\/h3\u003e\n\u003cp\u003eHigher Ah just means more run time. A 12.0Ah pack delivers longer runtime than a 5.0Ah on the same tool. Your tool only draws what it needs, so stepping up capacity is safe and common.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-faq\"\u003e\n\u003ch3\u003eHow long does it take to charge?\u003c\/h3\u003e\n\u003cp\u003eDepends on the charger. On a standard M18 charger you're typically back to full in 45 minutes to a couple of hours. Pairing it with a compatible M18 fast charger (like ours) cuts that downtime noticeably.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-faq\"\u003e\n\u003ch3\u003eHow do I check how much charge is left?\u003c\/h3\u003e\n\u003cp\u003ePress the button on top of the pack. The built-in LED gauge lights up 25%, 50%, 75%, or 100% so you always know when to grab a spare.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-faq\"\u003e\n\u003ch3\u003eDoes overcharge or short-circuit protection really exist?\u003c\/h3\u003e\n\u003cp\u003eYes. The BMS (battery management system) cuts power on overcharge, over-discharge, short-circuit, over-current, over-voltage, and over-heat. If a fault is detected, the circuit opens instead of letting the cell cook.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eWarranty \u0026amp; returns\u003c\/h2\u003e\n\u003cp\u003eWe keep it simple. You get a \u003cstrong\u003e12-month warranty\u003c\/strong\u003e against defects, plus \u003cstrong\u003e30-day hassle-free returns\u003c\/strong\u003e — if it's not right for your tools, send it back and we'll sort it out. Every pack ships fast from our U.S. fulfillment so you're not waiting weeks on a jobsite.\u003c\/p\u003e\n","brand":"BattGlobal Power Hub","offers":[{"title":"5.0Ah","offer_id":46412576129160,"sku":"M18B-50","price":56.36,"currency_code":"USD","in_stock":true},{"title":"6.0Ah","offer_id":46412577243272,"sku":"M18B-60","price":62.29,"currency_code":"USD","in_stock":true},{"title":"8.0Ah","offer_id":46412577276040,"sku":"M18B-80","price":68.22,"currency_code":"USD","in_stock":true},{"title":"9.0Ah","offer_id":46412577308808,"sku":"M18B-90","price":71.19,"currency_code":"USD","in_stock":true},{"title":"12.0Ah","offer_id":46412577341576,"sku":"M18B-120","price":86.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/4097\/9336\/files\/e4f647e5_6b8d27ba-a658-4948-afc1-d66568d32ef9.jpg?v=1786775905","url":"https:\/\/battglobal.com\/products\/milwaukee-m18-replacement-battery-18v","provider":"BattGlobal Power Hub","version":"1.0","type":"link"}