{"product_id":"edanins-ecg-3b-replacement-battery-111v-1800mah-li-polymer","title":"EDANINS ECG-3B Compatible Battery 11.1V 1800mAh Li-Polymer","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eEDANINS ECG-3B \/ BPM-E305 — 11.1V Li-Polymer Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 11.1V, 1800mAh lithium-polymer battery replaces the internal power cell in the EDANINS ECG-3B portable electrocardiograph and BPM-E305 blood pressure monitor. Both devices run on the same 11.1V three-cell Li-Polymer pack with matched connector and BMS handshake. Capacity is rated at 19.98Wh.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eECG-3B and BPM-E305 compatibility:\u003c\/strong\u003e\n    Both units share an identical 11.1V three-cell architecture, the same JST-style connector pitch, and the same BMS communication protocol. One cell fits both without adapter or modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge, standby, and discharge under the ECG-3B load profile. The BMS registered cell voltage correctly, accepted the charge IC handshake, and triggered no protection faults across the first three cycles.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePower-on self-test after swap:\u003c\/strong\u003e\n    After installing this battery, let the ECG-3B complete its full startup self-test without pressing any buttons or interrupting the boot sequence. The device runs BMS verification at power-on — cutting it short flags 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\"\u003eWhy the ECG-3B reports a battery fault on a brand-new cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe ECG-3B BMS stores a learned capacity profile from the previous cell. When a new cell is installed, the measured discharge curve does not yet match the stored model, so the device flags a mismatch fault. This clears after one complete charge-discharge cycle. Run the battery to the device's low-battery cutoff, then charge fully to 12.6V before clinical use.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharge indicator stalling below 100% on first charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eOn a new Li-Polymer cell, the charge IC applies a conservative current limit during the first top-up cycle. This makes the indicator appear to stall at 85–95% when the cell is still absorbing charge normally. The cell is not defective. Allow the charge cycle to run to termination without removing the device from the charger — the indicator will reach full on cycle two. Confirm full charge by checking that the ECG-3B shows 12.4V or above at the battery status screen.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381480521818,"sku":"BWCS-ACG300MD-1","price":37.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381480554586,"sku":"BWCS-ACG300MD-2","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381480587354,"sku":"BWCS-ACG300MD-3","price":47.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ACG300MD-1.webp?v=1778901169","url":"https:\/\/batteryweb.com\/products\/edanins-ecg-3b-replacement-battery-111v-1800mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}