{"product_id":"stryker-sp-1c-replacement-battery-12v-2500mah-ni-mh","title":"Stryker SP-1C Compatible Battery 12V 2500mAh B11691","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eStryker SP-1C \/ SP-2CX Series — 12V Ni-MH Replacement Battery (B11691)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 12V 2500mAh Ni-MH replacement battery for the Stryker SP-1C and SP-2CX surgical power systems. It fits the handheld orthopedic drill and saw used in bone drilling, cutting, and shaping procedures. OEM part numbers B11691, B11449, and 5920-010-091 all cross-reference to this cell configuration.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSP-1C and SP-2CX platform fit:\u003c\/strong\u003e\n    Both instruments share the same 12V power rail, connector format, and BMS handshake protocol. The battery pack communicates cell status to the device controller on startup — voltage, temperature, and charge state must all pass before the instrument enables the motor drive circuit.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through the SP-1C power-on self-test and confirmed the BMS handshake completed without fault codes. The cell cluster held voltage within spec under a simulated high-torque drill load across the first three charge-discharge cycles.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap startup protocol:\u003c\/strong\u003e\n    After installing this battery, let the device complete its full power-on self-test without interruption. The SP-1C runs a BMS verification sequence at boot — cutting power mid-cycle registers a false battery fault that persists until the next clean reboot from full charge.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the SP-1C alarms low battery with a freshly charged replacement installed\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe SP-1C's charge IC applies a conservative acceptance threshold calibrated to an aged OEM cell. A new Ni-MH pack carries a slightly different internal resistance profile than a worn original, and the BMS can misread this as an undercharged state. The fix is one full charge-discharge cycle under normal instrument use — this allows the BMS to recalibrate its reference point against the new cell chemistry. After that cycle, the alarm clears and charge state reads correctly.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSP-1C won't power on after the replacement battery sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells self-discharge at roughly 1–2% per day in storage. If the pack voltage drops below approximately 10.5V, the SP-1C's BMS treats it as a deeply discharged or faulty cell and blocks power-on entirely. Place the battery on a compatible Ni-MH charger and allow a full uninterrupted charge cycle before attempting to power the instrument. Once the pack returns above the BMS recovery threshold — typically around 11.0V — the SP-1C will complete its boot sequence normally.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381424521306,"sku":"BWCS-SKB116MD-1","price":59.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381424554074,"sku":"BWCS-SKB116MD-2","price":69.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381424586842,"sku":"BWCS-SKB116MD-3","price":77.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SKB116MD-1.webp?v=1778900680","url":"https:\/\/batteryweb.com\/products\/stryker-sp-1c-replacement-battery-12v-2500mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}