{"product_id":"clarisonic-mia-2-replacement-battery-24v-700mah-ni-mh","title":"Clarisonic Mia 2 Replacement Battery 2.4V 700mAh Ni-MH","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eClarisonic Mia 2 — 2.4V Ni-MH Replacement Battery (AA-2-900-PB3)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 2.4V, 700mAh Ni-MH replacement battery for the Clarisonic Mia 2 sonic facial cleansing brush. It replaces OEM part AA-2-900-PB3 and fits directly into the Mia 2 housing. If your device no longer holds a charge or powers down mid-use, this battery is the correct replacement.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMia 2 platform fit:\u003c\/strong\u003e\n    The Mia 2 runs a single-cell Ni-MH pack at 2.4V to drive the oscillating brush motor. This cell matches that voltage rail and the physical dimensions — 44.35 x 20.66 x 10.70mm — required by the internal housing cavity.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge and discharge cycles on the Mia 2 platform. The BMS accepted the cell without fault codes, and the motor reached full oscillation speed within normal spin-up time.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-wash charging precaution:\u003c\/strong\u003e\n    Dry the charging port fully before docking after use near water. Moisture bridging the contacts can trigger a protection fault that reads as a dead battery rather than a charging error — wiping and air-drying the base for two minutes before connecting clears this.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery fade from daily top-up charging on the Mia 2\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells develop gauge drift when regularly charged in short top-off cycles without a full discharge. The Mia 2 has no active fuel gauge to correct this — it reads estimated state-of-charge based on voltage, not actual capacity. Over months of partial charging, the cell's reported full-charge voltage and its real capacity drift apart. The device then powers down at what appears to be a partial charge because the voltage has sagged below the motor's threshold, even though the indicator hasn't triggered yet.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMia 2 motor losing speed before the battery indicator activates\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the Ni-MH cell can no longer sustain voltage under the motor's oscillation load. A degraded cell may read 2.4V at rest but drop below 2.0V the moment the motor draws current — enough to slow the brush head without triggering the low-battery indicator. The indicator threshold is set for resting voltage, not loaded voltage. Replacing the cell resolves this; after fitting the new battery, run one full charge cycle before first use to let the cell stabilise at rated capacity.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43415959371866,"sku":"BWCS-CMA200SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43415959404634,"sku":"BWCS-CMA200SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43415959437402,"sku":"BWCS-CMA200SL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CMA200SL-1.webp?v=1779758582","url":"https:\/\/batteryweb.com\/products\/clarisonic-mia-2-replacement-battery-24v-700mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}