{"product_id":"craftsman-nextec-replacement-battery-12v-2000mah-li-ion","title":"Craftsman Nextec 12V Replacement Battery 2000mAh 320.11221","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eCraftsman Nextec Series — 12V Li-ion Replacement Battery (320.11221)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 12V 2000mAh Li-ion battery for Craftsman Nextec cordless power tools. It fits the Nextec drill, impact driver, and saw platform — models 9-11221 and 11221. Voltage and capacity match the original pack spec directly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eNextec platform compatibility:\u003c\/strong\u003e\n    All Nextec 12V tools share the same slide-in connector and BMS communication protocol. The drill, impact driver, and saw draw from the same voltage rail and use identical pack latch geometry, so one battery services the full line.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack on a Nextec drill under repeated load pulls. The BMS held steady through motor-start inrush and recovered cleanly after each discharge cycle without false overcurrent trips.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eMotor inrush break-in on first use:\u003c\/strong\u003e\n    Run the tool at half load for two full charge-discharge cycles before heavy torque applications. This lets the BMS profile the motor's inrush current draw and set accurate overcurrent thresholds before you hit it with maximum 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 Nextec motor-start inrush surge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen you pull the trigger on a Nextec drill or saw, the motor draws a current spike well above its steady running load — this is inrush current. On a new or recently stored pack, the BMS may read that spike as an overcurrent fault and cut power instantly. The fix is to break the pack in gradually: two cycles at half load trains the BMS to distinguish normal inrush from a real fault. Once profiled, the BMS allows full trigger pulls without tripping.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharger not recognising the pack after extended storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells drop below charger acceptance voltage during long storage — typically under 2.5V per cell. The Nextec charger sees this and refuses to begin a charge cycle, often showing a blinking or solid red LED. Most chargers include a trickle or recovery mode that brings the pack back above the acceptance threshold. Insert the pack and leave it on the charger for 20–30 minutes without interruption; once cells reach approximately 3.0V per cell, the charger should switch to normal charge mode.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416030052442,"sku":"BWCS-CFT320PX-1","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416030085210,"sku":"BWCS-CFT320PX-2","price":45.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416030117978,"sku":"BWCS-CFT320PX-3","price":50.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CFT320PX-1.webp?v=1779759609","url":"https:\/\/batteryweb.com\/products\/craftsman-nextec-replacement-battery-12v-2000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}