{"product_id":"edan-f6-replacement-battery-148v-5200mah-li-ion","title":"Edan F6 Fetal Monitor Replacement Battery 14.8V 5200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eEdan F6 \/ F9 Fetal Monitor — 14.8V Li-ion Replacement Battery (TWSLB-006)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 14.8V 5200mAh (76.96Wh) Li-ion battery for the Edan F6 and F9 fetal monitors. It replaces OEM part numbers TWSLB-006, HYLB-854, 4IXR19\/65-2, and 21.21.064150. These are the portable fetal monitoring units used for continuous cardiotocography in obstetric and labor ward settings.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eF6 and F9 platform fit:\u003c\/strong\u003e\n    Both models run the same 14.8V four-cell battery architecture with a shared BMS handshake protocol. The connector pinout and cell configuration are identical across the F6 and F9, which is why a single part number covers both units.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through the F6 charge and discharge cycle. The BMS accepted the cell without fault, completed cell-balancing on the first full charge, and voltage held within the expected 16.8V–12.0V operating window under simulated monitoring load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap self-test protocol:\u003c\/strong\u003e\n    After installation, allow the device to complete its full power-on self-test cycle without interruption. The F6 and F9 run a BMS verification routine at startup. Interrupting it during the first boot causes a latching battery fault that will not clear until the next complete reboot cycle.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharge indicator not reaching 100% on the first charge after swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe F6 charge IC applies a conservative current ceiling when it first encounters a new cell. This is normal behaviour — the charge controller is running a capacity estimation pass before allowing a full-rate charge. On the first cycle, the indicator may stall at 90–95% for an extended period. Let the charge cycle complete fully without disconnecting power. After one full charge-discharge cycle, the charge IC recalibrates and the indicator will reach 100% as expected on subsequent charges.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eDevice will not power on after replacement cell sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge during storage. If the resting voltage drops below approximately 10.0V, the F6 BMS enters deep-discharge lockout and will not pass power to the device even when connected to the charger. Connect the unit to mains power and leave it on the charger for a minimum of 30 minutes before attempting to power on. The charge IC will trickle-charge the cell back above the BMS recovery threshold — typically around 10.8V — at which point normal charging and boot sequence will resume.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381481963610,"sku":"BWCS-EDM600MD-1","price":65.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381481996378,"sku":"BWCS-EDM600MD-2","price":77.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381482029146,"sku":"BWCS-EDM600MD-3","price":86.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-EDM600MD-1.webp?v=1778901171","url":"https:\/\/batteryweb.com\/products\/edan-f6-replacement-battery-148v-5200mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}