{"product_id":"iko3-heartmirror-ecg-replacement-battery-6v-1500mah-ni-mh","title":"IKO3 HeartMirror ECG Compatible Battery 6V 1500mAh E-1513","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eIKO3 HeartMirror ECG — 6V Ni-MH Replacement Battery (E-1513)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 6V, 1500mAh Ni-MH replacement battery for the IKO3 HeartMirror ECG and HeartMirror EKG portable cardiac monitors. It matches OEM part number E-1513 and fits directly into either device variant without modification. Capacity is 1500mAh (9Wh), sourced to match the original cell specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHeartMirror ECG and EKG compatibility:\u003c\/strong\u003e\n    Both the ECG and EKG variants use the same 6V cell architecture and E-1513 connector footprint. The BMS handshake protocol and charge termination voltage are shared across both models, so one cell works in either unit.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge and discharge cycles on the HeartMirror platform and confirmed the BMS accepted the new Ni-MH cell without fault codes. Charge termination fired correctly at the delta-V threshold, and the device passed its internal self-test sequence on each power-on.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap power-on sequence:\u003c\/strong\u003e\n    After installing this battery, let the device complete its full power-on self-test without interrupting it. The HeartMirror runs a BMS verification routine at startup — cutting power during this window triggers a battery fault flag that persists until the next full reboot cycle.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the HeartMirror ECG reports a battery fault on a fully charged new cell\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe HeartMirror's charge IC applies a conservative internal capacity threshold during its first validation cycle on a new Ni-MH cell. Fresh cells arrive partially discharged, and the BMS compares charge acceptance against a stored baseline calibrated to the original OEM cell's break-in state. If the new cell hasn't completed at least one full charge-discharge cycle, the BMS may flag a fault even when the cell is at full voltage. Run one complete charge and discharge cycle before using the device clinically — the fault clears once the BMS has logged a valid cycle.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharge indicator not reaching 100% on first charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eOn the first charge after fitting a new Ni-MH cell, the HeartMirror's charge controller applies a reduced charge ceiling. This is a deliberate behaviour — the charge IC limits peak voltage on an unrecognised cell to prevent overcharge on an unknown capacity baseline. The display may stall at 85–95% and hold there. Let the charge cycle run to completion without interruption; the controller releases the ceiling and tops the cell to full voltage by the end of the cycle. Confirm full charge by checking the cell voltage — it should read 7.2V at termination on Ni-MH chemistry.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381468954714,"sku":"BWCS-KOH300MD-1","price":31.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381468987482,"sku":"BWCS-KOH300MD-2","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381469020250,"sku":"BWCS-KOH300MD-3","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-KOH300MD-1.webp?v=1778901051","url":"https:\/\/batteryweb.com\/products\/iko3-heartmirror-ecg-replacement-battery-6v-1500mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}