{"product_id":"welch-allyn-audiopath-gsi-70-replacement-battery-72v-2000mah-ni-mh","title":"Welch-Allyn Audiopath GSI 70 Compatible Battery 7.2V 2000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eWelch-Allyn Audiopath GSI 70 — 7.2V Ni-MH Replacement Battery (1770-9672)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.2V, 2000mAh Ni-MH battery for the Welch-Allyn Audiopath GSI 70 portable audiometer. It fits the GSI 70 and Audio Path variants that use OEM part numbers 1770-9672, AMED2005, 5046, B11176, and B11190. If your unit is showing low-battery faults or failing to hold charge through a full test session, this is the direct replacement cell.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eGSI 70 platform fit:\u003c\/strong\u003e\n    The Audiopath GSI 70, GSI 70, and Audio Path models all draw from the same 7.2V Ni-MH cell architecture with a shared connector and BMS handshake profile. Any of these units accepts this battery without modification to the bay or firmware.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through a full charge and load discharge at the 7.2V nominal rail. The BMS accepted the cell, completed its verification pass, and flagged no fault codes after the first full cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePower-on self-test protocol:\u003c\/strong\u003e\n    After installing this battery, allow the GSI 70 to complete its full startup self-test without interruption. The device runs a BMS verification sequence at boot — cutting power mid-sequence creates a false battery fault that persists until the next clean reboot with a full charge present.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eGSI 70 alarming low battery immediately after a confirmed full charge\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe GSI 70's charge management circuit was calibrated against an OEM cell with an established charge history. A new Ni-MH cell reads slightly lower internal resistance and a flatter early-cycle voltage curve, which the BMS can misread as a degraded or undercharged pack. This is not a fault with the replacement cell — it is a learn-cycle issue. Run one complete charge-to-discharge cycle under normal clinical load and allow the unit to recharge fully before the second session. After that first cycle, the BMS recalibrates its threshold and the low-battery alarm clears. Verify charge completion at the charger indicator before powering the device on.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eGSI 70 not completing its boot sequence after the battery sat in storage\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells self-discharge at roughly 1–2% per day in storage. A cell that has sat for several months can drop below 6.0V — which is the common BMS recovery threshold on this class of medical device. Below that voltage, the BMS refuses to boot the unit as a safety measure. Connect the battery to the charger for a minimum of 12 hours before attempting to power on the device. If the charger does not respond initially, a trickle-charge pre-conditioning stage may be needed — some chargers designed for Ni-MH begin this automatically when the cell presents below 5.5V. Once the cell recovers above the BMS floor, normal charging and boot behaviour resumes.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381510078554,"sku":"BWCS-WB170MD-1","price":33.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381510111322,"sku":"BWCS-WB170MD-2","price":38.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381510144090,"sku":"BWCS-WB170MD-3","price":42.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-WB170MD-1.webp?v=1778901340","url":"https:\/\/batteryweb.com\/products\/welch-allyn-audiopath-gsi-70-replacement-battery-72v-2000mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}