{"product_id":"welch-allyn-compact-otoscope-93400-replacement-battery-24v-1800mah-ni-mh","title":"Welch-Allyn 72610 Otoscope Replacement Battery 2.4V 1800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eWelch-Allyn Compact Otoscope 93400 — 2.4V Ni-MH Replacement Battery (72610)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 2.4V 1800mAh Ni-MH rechargeable battery for the Welch-Allyn Compact Otoscope 93400 and Compacset 93400. The otoscope is a handheld clinical instrument used to examine the ear canal and eardrum. It draws power from a small rechargeable cell housed in the handle, and this battery matches the OEM voltage, chemistry, and form factor.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCompact Otoscope 93400 and Compacset 93400 fit:\u003c\/strong\u003e\n    Both models share the same 2.4V Ni-MH cell specification, handle connector, and BMS handshake. The same battery seats correctly in either device 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 and discharge on the 93400 platform. The BMS accepted the new cell on the first cycle, held the low-battery threshold, and did not trigger a false fault after full charge.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap startup protocol:\u003c\/strong\u003e\n    After installing this battery, let the device complete its full power-on self-test without interrupting it. The 93400 runs a BMS verification check at startup — cutting power mid-sequence 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\"\u003eLow battery alarm firing on the 93400 with a fully charged replacement\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe 93400 BMS stores a charge profile calibrated to the original OEM cell. A new Ni-MH cell has a slightly different internal resistance curve, and the BMS reads that as a low state of charge on the first few cycles. This is not a fault with the battery — the BMS learn cycle has not completed yet. Run one full charge-discharge cycle before using the device clinically. After that cycle, the BMS recalibrates and the alarm clears.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003e93400 not powering on after the replacement cell sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells self-discharge during storage, and if the cell voltage drops far enough, the BMS enters a protection state and blocks normal startup. The device appears dead even though the battery is physically intact. Place the battery in the OEM charger and allow a full charge cycle to complete — do not interrupt it. Once voltage recovers above the BMS recovery threshold of approximately 2.0V, the device will power on normally.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381457616986,"sku":"BWCS-WB934MD-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381457649754,"sku":"BWCS-WB934MD-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381457682522,"sku":"BWCS-WB934MD-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-WB934MD-1.webp?v=1778901015","url":"https:\/\/batteryweb.com\/products\/welch-allyn-compact-otoscope-93400-replacement-battery-24v-1800mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}