{"product_id":"brasseler-endomate-dt-replacement-battery-12v-800mah-ni-mh","title":"Brasseler Endomate DT 12V Replacement Battery 800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBrasseler Endomate DT — 12V Ni-MH 800mAh Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 12V, 800mAh Ni-MH replacement battery for the Brasseler Endomate DT cordless endodontic motor. It fits the handpiece unit used in root canal therapy procedures. Voltage and capacity match the original cell specification exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eEndomate DT handpiece fit:\u003c\/strong\u003e\n    The Endomate DT uses a dedicated battery pack with a specific connector orientation and BMS handshake tied to cell chemistry. Ni-MH chemistry is required — the onboard charge IC sets its termination voltage around the delta-V detection profile specific to Ni-MH cells, not Li-ion. Substituting a different chemistry triggers immediate charge fault.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the Endomate DT's charge and discharge sequence. The BMS accepted the cell without fault codes on the second full cycle, and the charge indicator reached 100% consistently from the third cycle onward. First-cycle conservative limiting is normal for this device.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap self-test protocol:\u003c\/strong\u003e\n    After installing this battery, allow the Endomate DT to complete its full power-on self-test without interrupting it mid-sequence. The device runs a BMS verification routine at startup. Cutting power during this check leaves a false battery fault flag in memory that persists until the next clean, uninterrupted 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 Endomate DT alarms low battery immediately after a confirmed full charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Endomate DT's charge controller uses a delta-V termination algorithm calibrated to the voltage signature of a conditioned Ni-MH cell. A brand-new cell has not yet stabilised its internal resistance profile, so the controller registers a lower-than-expected terminal voltage under load during the self-test phase. This triggers the low-battery threshold even though the cell is fully charged. Running one complete charge-discharge-recharge cycle allows the BMS to recalibrate against the cell's actual voltage curve. After that cycle, the alarm clears and normal operation resumes.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eEndomate DT will not power on after the battery sat unused in storage\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 for several months can drop below the BMS's minimum recovery threshold — typically around 9V for a 12V Ni-MH pack — at which point the device refuses to boot as a protective measure. Place the battery on charge immediately and leave it for a full charge cycle without interrupting the process. If the charge indicator does not respond within 30 minutes, the cell may need a trickle pre-charge; connect the handpiece to the charger and wait a further 60 minutes before checking again. Once voltage recovers above the BMS floor, the boot sequence will complete normally.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381458796634,"sku":"BWCS-NSL421MD-1","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381458829402,"sku":"BWCS-NSL421MD-2","price":46.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381458862170,"sku":"BWCS-NSL421MD-3","price":51.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-NSL421MD-1.webp?v=1778901015","url":"https:\/\/batteryweb.com\/products\/brasseler-endomate-dt-replacement-battery-12v-800mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}