{"product_id":"dentsply-propex-ii-replacement-battery-24v-700mah-ni-mh","title":"Dentsply Propex II Replacement Battery 2.4V 700mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eDentsply Propex II — 2.4V Ni-MH Replacement Battery (GP210AAHC2BMXZ)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 2.4V 700mAh Ni-MH replacement cell for the Dentsply Propex II electronic apex locator and the Smartlite Curer. The Propex II is a clinical endodontic device used to determine working length during root canal treatment — accurate power delivery directly affects measurement reliability. This battery matches the OEM voltage and chemistry the device BMS expects.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePropex II and Smartlite Curer compatibility:\u003c\/strong\u003e\n    Both devices share the same 2.4V power rail, connector footprint, and BMS handshake profile. The Propex II uses a two-cell Ni-MH pack at this voltage to sustain the impedance-measurement circuit without voltage sag distorting apex readings.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the Propex II's startup self-test sequence and confirmed the BMS accepted the cell state on the first full charge-discharge cycle. The charge IC brought it to full capacity without flagging a chemistry mismatch.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap startup protocol for the Propex II:\u003c\/strong\u003e\n    After fitting this battery, let the device run its full power-on self-test without interrupting or powering off mid-sequence. The Propex II runs a BMS verification step at boot — cutting power during this step stores a false battery fault that will persist on every subsequent startup until a clean reboot clears it.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Propex II reads unstable apex measurements on a new cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Propex II's impedance measurement circuit is sensitive to minor voltage fluctuations during the first several charge cycles on a fresh Ni-MH cell. New cells have not yet reached their stable internal resistance baseline, which can introduce small deviations in the frequency-based measurement signal. This does not indicate a faulty battery or device. Run two to three full charge-discharge cycles before relying on the device clinically — cell internal resistance stabilises quickly and readings normalise.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLow battery alarm triggers immediately after a confirmed full charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Propex II's BMS sets its low-battery threshold against a learned capacity profile from the previous cell. A new replacement cell at first charge has not yet completed a BMS learn cycle, so the firmware can read its state-of-charge as insufficient even at full voltage. This is a BMS calibration issue, not a defective battery. Run one complete charge-to-discharge cycle — the BMS resets its threshold and the alarm clears. After that cycle, the device should read 2.4V at the battery terminals under light load.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381477965914,"sku":"BWCS-DSC210MD-1","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381477998682,"sku":"BWCS-DSC210MD-2","price":28.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381478031450,"sku":"BWCS-DSC210MD-3","price":31.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-DSC210MD-1.webp?v=1778901051","url":"https:\/\/batteryweb.com\/products\/dentsply-propex-ii-replacement-battery-24v-700mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}