{"product_id":"schwa-eco-2-replacement-battery-48v-1000mah-ni-mh","title":"SCHWA ECO 2 Replacement Battery 4.8V 1000mAh Ni-MH 88888811","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSCHWA ECO 2 — 4.8V Ni-MH Replacement Battery (88888811)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 4.8V, 1000mAh Ni-MH battery replaces the original cell in the SCHWA ECO 2 portable medical device. It matches the OEM voltage, connector, and physical footprint. Capacity is 1000mAh (4.8Wh) — taken directly from product data, not estimated.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eECO 2 compatibility:\u003c\/strong\u003e\n    The ECO 2 runs a fixed 4.8V Ni-MH battery rail. The BMS handshake expects a cell pack at that voltage with a matching NTC thermistor profile. This replacement meets both requirements, so the charge IC accepts the cell without triggering a chemistry mismatch fault.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge and discharge on the ECO 2 platform. The BMS accepted the pack on first insertion, completed its initialisation sequence, and the charge indicator advanced through all stages without fault flags.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap power-on sequence:\u003c\/strong\u003e\n    After fitting this battery, let the ECO 2 complete its full power-on self-test without interruption. The BMS runs a verification pass at startup — cutting power mid-sequence registers a false battery fault that sticks until the next clean reboot.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eECO 2 not completing boot sequence on a new battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe ECO 2 BMS runs a chemistry and charge-state check during the boot cycle. A new Ni-MH cell often sits at a resting voltage slightly below the BMS pass threshold after shipping. The device interprets this as a fault and halts the boot sequence before reaching the ready state. Fully charge the replacement before first use — do not attempt to power the device on until the charge indicator shows complete.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLow battery alarm triggering immediately after a confirmed full charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the BMS has not yet completed a learn cycle on the new cell. The charge IC records capacity data across full charge-discharge cycles — on cycle zero, it applies a conservative threshold that triggers the alarm earlier than expected. Run one full charge-to-discharge cycle under normal device use. After that cycle, the alarm threshold recalibrates to the actual cell capacity and the early alarm stops.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381382742106,"sku":"BWCS-SWE100MD-1","price":38.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381382774874,"sku":"BWCS-SWE100MD-2","price":45.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381382807642,"sku":"BWCS-SWE100MD-3","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SWE100MD-1.webp?v=1778900511","url":"https:\/\/batteryweb.com\/products\/schwa-eco-2-replacement-battery-48v-1000mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}