{"product_id":"dewalt-dc733k2-replacement-battery-144v-3000mah-li-ion","title":"DeWalt DE9141 14.4V Compact Drill Replacement Battery 3000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eDeWalt DC733K2 Series — 14.4V Li-ion Replacement Battery (DE9141)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 14.4V, 3000mAh Li-ion replacement battery for the DeWalt DC733K2 compact drill\/driver and compatible 14.4V cordless tools including the DC731KA, DC735KA, and DCD930B2. It fits the same battery slot and uses the same connector and BMS handshake protocol as the original DE9141 pack. Voltage and cell chemistry match the original specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDC733K2 and DC731KA platform fit:\u003c\/strong\u003e\n    These models share the same 14.4V sliding-rail connector, BMS communication line, and overcurrent threshold profile. One battery pack works across all of them without adapter or modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through charge, rest, and load cycles on a DC733K2. The BMS handshake completed on first charger contact, cell balancing activated during the first full charge, and overcurrent protection tripped correctly under a simulated stall-load test.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBreak-in load protocol for new pack:\u003c\/strong\u003e\n    On the first two uses, run the drill at medium torque settings before pushing maximum clutch loads. This lets the BMS sample real inrush current spikes from your specific motor and calibrate its overcurrent trip threshold before you stress the cells under full fastening torque.\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 DC733K2 motor-start inrush surge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen you pull the trigger on a DeWalt 14.4V drill, the motor draws a brief inrush spike — often three to five times the running current — before it reaches operating speed. A new or storage-rested Li-ion pack has slightly elevated internal resistance, which amplifies the voltage sag during that spike. If the sag crosses the BMS undervoltage threshold, the pack shuts off mid-trigger. Running two break-in cycles at partial load lowers internal resistance and resets the BMS trip window to match actual motor demand.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharger shows blinking red and won't accept new pack\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eDeWalt 14.4V chargers reject packs whose cell voltage sits below the charger's acceptance floor — typically around 10V for a 14.4V pack. After shipping or storage, cells can self-discharge to that level or below. Place the pack in the charger, wait 60 seconds, then remove and re-seat it firmly — this triggers the charger's recovery pulse on some models. If the red blink continues, check rail contact resistance with a multimeter; a reading above 50mΩ at the pack terminals points to a dirty or oxidised connector, not a dead cell.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416033525850,"sku":"BWCS-DEC730PW-1","price":90.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416033558618,"sku":"BWCS-DEC730PW-2","price":106.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416033591386,"sku":"BWCS-DEC730PW-3","price":117.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-DEC730PW-1.webp?v=1779759609","url":"https:\/\/batteryweb.com\/products\/dewalt-dc733k2-replacement-battery-144v-3000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}