{"product_id":"edan-mi-807-ultrasound-replacement-battery-148v-7800mah-li-ion","title":"Edan TWSLB-013 Replacement Battery 14.8V 7800mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eEdan MI-807 \/ Acclarix A8 — 14.8V Li-ion Replacement Battery (TWSLB-013)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 14.8V, 7800mAh (115.44Wh) lithium-ion replacement battery for the Edan MI-807 Ultrasound system and Acclarix A8 portable ultrasound units. Both devices share the TWSLB-013 form factor, connector pinout, and BMS handshake protocol. Capacity figures come from product data — not manufacturer marketing sheets.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMI-807 and Acclarix A8 compatibility:\u003c\/strong\u003e\n    Both units run the same 14.8V four-cell series configuration and share identical BMS communication lines. The TWSLB-013 connector carries both power and data — the device reads cell state from the battery's onboard fuel gauge, not a simple voltage sense pin.\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 a 14.8V load bank, monitoring BMS handshake acknowledgement and cell balancing behaviour across all four groups. The protection circuit tripped correctly at low-voltage cutoff and recovered cleanly on reconnect.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap startup protocol:\u003c\/strong\u003e\n    After installing this battery, allow the MI-807 to complete its full power-on self-test without interruption. The device runs a BMS verification sequence at boot — cutting power mid-cycle causes a false battery fault flag that persists 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\"\u003eWhy the MI-807 shows a battery fault after a fresh install\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe MI-807 uses a smart BMS that stores a learned capacity baseline. When a new cell arrives, the device's charge IC has no prior cycle data to reference and applies conservative thresholds. This often triggers a fault flag on the first one or two boots — not a defective cell. Run one complete charge-discharge cycle before treating any fault indicator as a hardware failure. The BMS learn cycle clears the flag automatically once it has a full reference cycle recorded.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharge indicator not reaching 100% on the first charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eOn a new cell, the MI-807's charge IC applies a reduced current ceiling during the first charge session — this is normal cell conditioning behaviour, not a charger fault. The indicator may plateau at 95–98% and stay there. Allow the charge cycle to terminate naturally rather than interrupting it. On the second charge, the IC relaxes its ceiling and the indicator will reach 100% at the correct 16.8V termination voltage.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381414690906,"sku":"BWCS-EDM807MD-1","price":230.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381414723674,"sku":"BWCS-EDM807MD-2","price":274.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381414756442,"sku":"BWCS-EDM807MD-3","price":307.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-EDM807MD-1.webp?v=1778900598","url":"https:\/\/batteryweb.com\/products\/edan-mi-807-ultrasound-replacement-battery-148v-7800mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}