{"product_id":"firestorm-fs1200d-replacement-battery-12v-3000mah-ni-mh","title":"Firestorm FS120B 12V Ni-MH Cordless Drill Replacement Battery 3000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eFirestorm FS1200D Series — 12V Ni-MH Replacement Battery (FS120B)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 12V, 3000mAh Ni-MH battery pack built to fit the Firestorm FS1200D and FS1200D-2 cordless drill\/driver platforms, along with over 35 compatible models. It slots into the same bay as the original FS120B and FSB12 packs. Voltage and capacity match the stock spec exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFS1200D and FS1202 platform fit:\u003c\/strong\u003e\n    These models share a common 12V tool bay, contact rail, and BMS handshake protocol. The HPB12 and FSB12 cross-reference to the same connector footprint, so this pack seats and locks without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through a FS1200D-class drill under repeated trigger-pull loads. The BMS handled motor-start inrush without tripping, and cell voltage recovered cleanly between bursts.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eNi-MH break-in on drill duty:\u003c\/strong\u003e\n    Run this pack through two full discharge-and-recharge cycles at moderate drilling load before tackling high-torque fastening. Ni-MH cells need conditioning to reach rated capacity — skipping this leaves measurable capacity on the table from day one.\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 FS1200D motor-start inrush surge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen you pull the trigger hard on a stalled or loaded bit, the motor draws a current spike well above its running draw. Ni-MH packs have a BMS overcurrent threshold set to protect the cells from that spike. If the pack is cold or has sat unused, internal resistance rises and the voltage rail sags under inrush — the BMS reads this as a fault and cuts out. Let the pack reach room temperature before use and ease into full torque on the first few pulls to let the BMS profile the load correctly.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharger not recognising this pack after storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH packs that sit unused for months can self-discharge below the charger's acceptance voltage — typically under 10V for a 12V pack — and the charger refuses to begin a charge cycle. This is not a dead pack. Place the battery in the charger, wait 60 seconds, and remove and reseat it firmly; some chargers need a brief trickle to recover the voltage before the main charge kicks in. If the charger still shows no activity, check that the rail contacts on both pack and charger are clean and free of oxidation. A light clean with isopropyl on the contacts often resolves a no-start condition.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416021237850,"sku":"BWCS-BPS712PH-1","price":88.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416021270618,"sku":"BWCS-BPS712PH-2","price":103.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416021303386,"sku":"BWCS-BPS712PH-3","price":114.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BPS712PH-1.webp?v=1779759462","url":"https:\/\/batteryweb.com\/products\/firestorm-fs1200d-replacement-battery-12v-3000mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}