{"product_id":"dentsply-maillefer-propex-locator-replacement-battery-36v-300mah-ni-mh","title":"Dentsply Maillefer Propex Locator 670601 Replacement Battery 3.6V 300mAh Ni-MH","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eDentsply Maillefer Propex Locator — 3.6V Ni-MH Replacement Battery (670601)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.6V, 300mAh Ni-MH rechargeable cell for the Dentsply Maillefer Propex apex locator. It replaces OEM part 670601 — the battery that powers the locator's impedance-based measurement circuit during root canal procedures. If your Propex is alarming low or failing to power on mid-session, this is the cell you need.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePropex Locator compatibility:\u003c\/strong\u003e\n    The Propex uses a compact Ni-MH cell at 3.6V to run its signal-processing board and LCD. That voltage rail and the physical footprint (31.22 × 29.80 × 10.80mm) are matched to the OEM spec — the connector seats the same way and the BMS receives the correct chemistry signal.\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 boot sequence and verified BMS handshake, charge acceptance, and low-battery threshold response. The cell passed self-test without triggering a false battery fault after a full conditioning cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-use protocol for apex locators:\u003c\/strong\u003e\n    After installing this cell, let the Propex complete its full power-on self-test without switching it off mid-sequence. The BMS runs a verification check at startup — interrupting it before completion sets a fault flag 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 Propex Locator triggers a low-battery alarm on a freshly charged replacement cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Propex BMS compares internal resistance and open-circuit voltage against a learned baseline calibrated to a conditioned OEM cell. A brand-new Ni-MH cell has higher internal resistance in its first few cycles — it hasn't yet reached peak electrochemical efficiency. The BMS reads that elevated resistance as a weak battery, even if the cell is fully charged. Running one complete charge-discharge cycle before clinical use brings internal resistance within the BMS acceptance window and clears the false alarm.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePropex won't power on after the battery has been sitting unused\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells self-discharge at roughly 1–2% per day at room temperature. A cell stored in a device for several weeks can drop below the BMS recovery threshold — typically around 3.0V for a 3.6V Ni-MH pack — at which point the device will not power on at all. Place the battery on charge for a full cycle before attempting to boot the device. If the charger does not begin the charge cycle, the cell may need a brief trickle-charge pulse to recover above the 3.0V floor before the charge IC takes over.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381457911898,"sku":"BWCS-DMP100MD-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381457944666,"sku":"BWCS-DMP100MD-2","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381457977434,"sku":"BWCS-DMP100MD-3","price":31.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-DMP100MD-1.webp?v=1778900983","url":"https:\/\/batteryweb.com\/products\/dentsply-maillefer-propex-locator-replacement-battery-36v-300mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}