{"product_id":"nihon-kohden-cardioair-ecg-2010-replacement-battery-37v-2900mah-li-ion","title":"Nihon Kohden CardioAir ECG-2010 Compatible Battery SB-202D 3.7V","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eNihon Kohden CardioAir ECG-2010 — 3.7V Li-ion Replacement Battery (SB-202D)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V 2900mAh Li-ion replacement for the Nihon Kohden SB-202D battery pack. It fits the CardioAir ECG-2010 portable electrocardiograph. Capacity matches the original specification at 10.73Wh.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCardioAir ECG-2010 platform fit:\u003c\/strong\u003e\n    The ECG-2010 uses a single-cell Li-ion pack at 3.7V nominal with a connector and BMS handshake matched to the SB-202D form factor. This cell meets that voltage rail and physical envelope — 64.40 × 44.70 × 13.00mm — so the pack seats and communicates correctly with the device charge controller.\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 ECG-2010 and monitored BMS communication at each stage. The charge IC accepted the cell without fault codes, and the BMS passed state-of-charge reporting through to the device display as expected.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap startup on medical hardware:\u003c\/strong\u003e\n    After inserting this battery, allow the ECG-2010 to complete its full power-on self-test without interruption. The device runs BMS verification at boot. Cutting power during that sequence causes a false 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 ECG-2010 shows a low battery alarm immediately after a confirmed full charge\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe ECG-2010's charge management IC calibrates state-of-charge against cell chemistry data stored from the previous pack. A new cell arrives with an uncalibrated BMS profile, so the device reads capacity conservatively and triggers the low battery threshold even at full charge. This clears after one complete charge-discharge cycle, which lets the BMS rewrite its capacity baseline. Run the device through a full clinical session to discharge below 20%, then charge back to 100% before clinical deployment.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eECG-2010 will not power on after the replacement battery sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge during storage. If this cell dropped below the ECG-2010's BMS recovery threshold — typically around 2.5V for a 3.7V nominal cell — the device will not power on even when connected to the charger. The BMS applies a trickle pre-charge at low current to recover the cell before switching to standard CC\/CV charging. Leave the device on charge for a minimum of 30 minutes before attempting to power on, allowing the pre-charge stage to bring the cell above 3.0V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381394014298,"sku":"BWCS-NKD201MD-1","price":83.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381394047066,"sku":"BWCS-NKD201MD-2","price":99.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381394079834,"sku":"BWCS-NKD201MD-3","price":110.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-NKD201MD-1.webp?v=1778900564","url":"https:\/\/batteryweb.com\/products\/nihon-kohden-cardioair-ecg-2010-replacement-battery-37v-2900mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}