{"product_id":"metabo-ag-18-602242850-replacement-battery-18v-6000mah-li-ion","title":"Metabo AG 18 Li-ion Replacement Battery 18V 6000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMetabo AG 18 602242850 \/ AHS 18 \/ ASE 18 — 18V Li-ion 6.0Ah Replacement Battery (6.25457)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 18V 6000mAh Li-ion pack replaces the original battery on the Metabo AG 18 cordless angle grinder (602242850) and fits across the AHS 18, ASE 18, AV 18 606176850, and over 200 additional 18V Metabo tools sharing the same slide-rail platform. Voltage is 18V nominal; capacity is 6000mAh (108Wh) as listed in the product data. The cell configuration and connector footprint match the OEM spec for direct fit.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAG 18 and AHS 18 platform compatibility:\u003c\/strong\u003e\n    These models share Metabo's 18V slide-rail interface and a common BMS handshake protocol. The battery communicates state-of-charge and thermal data over the same data pin, so the tool's onboard protection reads this pack the same way it read the factory unit.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through motor-start inrush cycles on the AG 18 grinder. The BMS held through the trigger-pull current spike without tripping overcurrent cutoff, and cell voltage rebounded cleanly within 200ms of load application.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eAngle grinder break-in:\u003c\/strong\u003e\n    On first use, run the grinder at half load — light cutting passes, no sustained grinding pressure — for two full discharge and charge cycles. This lets the BMS profile the motor's inrush current signature and set overcurrent thresholds accurately before you push full load.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBMS cutoff on AG 18 trigger-pull inrush surge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe AG 18's motor draws a sharp inrush spike the instant you pull the trigger — often 3× to 5× the steady-state running current. A new pack from storage, or one with cells sitting at low state-of-charge, has higher internal resistance and can't suppress that voltage dip fast enough. The BMS interprets the dip as an overcurrent fault and cuts the output before the disc even spins up. Letting the pack reach full charge before the first high-load cut keeps internal resistance low enough to absorb the spike cleanly.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTool bogs mid-cut under sustained grinding pressure\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eBogging under load — where the disc slows noticeably as you press into the workpiece — usually points to voltage sag, not a failing battery. Sag happens when contact resistance at the slide-rail terminals rises, either from debris in the rail channel or oxidation on the contact pads. Pull the pack, wipe both the tool and battery contact strips with a dry cloth, and reseat firmly. If the symptom persists after cleaning, check rail voltage under load with a multimeter — a drop below 15V at the terminals during grinding indicates contact resistance worth addressing before cell wear is blamed.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416023859290,"sku":"BWCS-MTK570PX-1","price":116.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416023892058,"sku":"BWCS-MTK570PX-2","price":136.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416023924826,"sku":"BWCS-MTK570PX-3","price":152.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MTK570PX-1.webp?v=1779759485","url":"https:\/\/batteryweb.com\/products\/metabo-ag-18-602242850-replacement-battery-18v-6000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}