{"product_id":"nihon-kohden-edan-se-1-replacement-battery-148v-2600mah-li-ion","title":"Nihon Kohden Edan SE-1 14.8V Compatible Battery HYTB-102","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eNihon Kohden Edan SE-1 — 14.8V Li-ion Replacement Battery (HYTB-102)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 14.8V, 2600mAh lithium-ion battery replaces the HYTB-102 pack in the Edan SE-1 portable 12-channel ECG machine. It also fits the Edan SE-3, SE-12 Express, and SE-100 series. All specs match the OEM pack: voltage, cell count, and BMS communication protocol.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSE-1 \/ SE-3 \/ SE-12 \/ SE-100 platform fit:\u003c\/strong\u003e\n    These four models share the same 14.8V four-cell architecture and identical connector pinout. The BMS in each unit reads cell voltage and temperature data from the same register set, so one pack covers the entire platform.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through full charge and load cycles on an SE-1 unit. The BMS handshake completed on first power-on, charge IC accepted the cell without a chemistry mismatch fault, and the device cleared its internal self-test without manual intervention.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap power-on sequence:\u003c\/strong\u003e\n    After fitting this battery, let the SE-1 complete its full power-on self-test without pressing any keys or connecting a patient cable. The device runs a BMS verification loop at startup — interrupting it creates a false battery fault 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 SE-1 shows a battery error after a confirmed full charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe SE-1's charge IC applies a conservative acceptance threshold on cells it hasn't profiled before. A new pack fresh from storage may sit just below the OEM state-of-charge threshold the BMS uses to clear the fault flag. This is not a defective cell — it's the BMS requiring one complete charge-discharge cycle to calibrate its capacity estimate. Run one full discharge under normal device use, then recharge to 100%. The fault clears after that cycle completes and the charge IC logs the cell's actual capacity.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSE-1 won't 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 the pack voltage drops below approximately 10V — roughly 2.5V per cell — the BMS enters a deep-discharge lockout state and blocks current output entirely as a protection measure. The SE-1 will show no response at all: no boot screen, no LED, no sound. Connect the device to mains power via its AC adapter and leave it charging for a minimum of two hours before attempting to power on. This allows the charge IC to pre-charge the cells above the BMS recovery threshold, typically around 11.2V, at which point normal charging and startup resume.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381512634458,"sku":"BWCS-NK1200MD-1","price":47.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381512667226,"sku":"BWCS-NK1200MD-2","price":55.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381512699994,"sku":"BWCS-NK1200MD-3","price":61.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-NK1200MD-1.webp?v=1778901340","url":"https:\/\/batteryweb.com\/products\/nihon-kohden-edan-se-1-replacement-battery-148v-2600mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}