{"product_id":"windmere-rr-3-replacement-battery-24v-2000mah-ni-mh","title":"Windmere RR-3 Replacement Battery 2.4V 2000mAh Ni-MH","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eWindmere RR-3 — 2.4V Ni-MH Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 2.4V 2000mAh Ni-MH replacement battery for the Windmere RR-3 electric shaver. It replaces the original rechargeable cell that powers the shaver motor during cordless use. When the original cell can no longer hold a charge, this swap restores full motor operation.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eRR-3 motor voltage rail:\u003c\/strong\u003e\n    The RR-3 shaver runs a single Ni-MH cell stack at 2.4V to drive the motor at rated speed. A lower-voltage cell causes the motor to under-spin from the first charge cycle, so voltage match here is not optional.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge and discharge on the RR-3 platform and confirmed the BMS accepted the cell, reported charging state correctly, and cut off at the expected low-voltage threshold without a false empty signal.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eCharging port dry-down before connecting:\u003c\/strong\u003e\n    The RR-3 is used near water daily. Moisture bridging the charging contacts trips a BMS protection fault the device reports as a dead battery, not a charging error. Dry the charging port completely before docking after any rinse.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCapacity fade from daily partial charging on the RR-3\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells used in short daily cycles — charged each morning before fully depleting — develop voltage memory drift over time. The shaver's charge indicator calibrates against expected voltage curves, so a drifted cell makes the indicator read full when actual capacity is well below 2000mAh. The motor still runs but cuts out earlier than the indicator predicts. Replacing the cell resets the voltage baseline the indicator tracks against.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMotor speed drops before the low-battery indicator activates\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eAn aged Ni-MH cell loses internal resistance control before it hits the BMS cutoff voltage. Under the rotary motor's load, terminal voltage sags enough to slow the motor noticeably while the indicator still shows charge remaining. This is voltage sag under load, not a shaver fault. The indicator reads open-circuit voltage, which stays higher than the loaded voltage the motor actually sees. Fitting a fresh cell with full capacity eliminates the sag and restores consistent motor speed through the full discharge curve.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416130322522,"sku":"BWCS-PHN282SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416130355290,"sku":"BWCS-PHN282SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416130388058,"sku":"BWCS-PHN282SL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-PHN282SL-1.webp?v=1779760427","url":"https:\/\/batteryweb.com\/products\/windmere-rr-3-replacement-battery-24v-2000mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}