{"product_id":"matrix-ak-18-1-li-replacement-battery-18v-2000mah-li-ion","title":"Matrix 18V AK 18-1-Li Replacement Battery 2000mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMatrix AK 18-1-Li — 18V Li-ion Replacement Battery (120.300.650)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is an 18V 2000mAh Li-ion replacement battery for the Matrix AK 18-1-Li cordless tool platform. It fits Matrix 18V drills, impact drivers, circular saws, and other tools that accept the AK 18-1-Li pack. Voltage and capacity match the OEM spec — 18V nominal, 36Wh total energy.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAK 18-1-Li platform compatibility:\u003c\/strong\u003e\n    Matrix 18V tools share a common battery rail and connector across the AK 18-1-Li lineup. The BMS on this pack communicates with the tool's controller using the same signal line as the original, so the tool recognises the pack without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack on a Matrix 18V drill and circular saw under load. The BMS held the output rail steady through repeated trigger pulls and cleared overcurrent events without latching into fault mode.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eMotor inrush break-in:\u003c\/strong\u003e\n    On first use, run the tool at half load for two cycles before full-torque applications. This lets the BMS log the motor's inrush current signature and set overcurrent thresholds accurately before you push the tool hard.\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 drill and saw motor-start inrush surge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eEvery time you pull the trigger, the motor draws a spike of current — often three to five times the running current — for the first fraction of a second. If the BMS has not yet profiled the motor, it can read that spike as a fault and cut the output rail instantly. This is not a dead battery — it is the overcurrent protection doing its job with an incomplete current map. Running the tool through two half-load cycles before full use gives the BMS enough data to distinguish a normal start from a true fault. After the break-in cycles, cold-start cutouts on trigger pull should stop.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharger not recognising the pack after storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge during storage. If the pack voltage drops below the charger's acceptance threshold — typically around 10V on an 18V pack — the charger refuses to start a charge cycle and shows a blinking or red indicator. The cells are not dead; they are just below the entry window. Use a compatible Li-ion charger with a recovery or \"wake\" mode, or apply a short manual top-up at a low rate to bring the pack above 12V. Once above the threshold, insert the pack into the Matrix charger and it will begin a normal charge cycle.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416036212826,"sku":"BWCS-MTK180PW-1","price":84.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416036245594,"sku":"BWCS-MTK180PW-2","price":98.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416036278362,"sku":"BWCS-MTK180PW-3","price":109.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MTK180PW-1.webp?v=1779759627","url":"https:\/\/batteryweb.com\/products\/matrix-ak-18-1-li-replacement-battery-18v-2000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}