{"product_id":"philips-hx5350-replacement-battery-12v-2500mah-ni-mh","title":"Philips HX5350 Replacement Battery 1.2V 2500mAh Ni-MH","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003ePhilips HX5350 \/ HX6302 Series — 1.2V Ni-MH Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 1.2V 2500mAh Ni-MH cell replaces the internal rechargeable battery in the Philips HX5350, HX5751, HX5752, HX6302, and over 30 additional compatible Philips Sonicare models. When the original cell degrades, brush motor speed drops and charge duration shortens — this cell restores normal operation. Capacity is 2500mAh (3Wh) as specified for this battery slot.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHX5350 and HX6302 series compatibility:\u003c\/strong\u003e\n    These models share the same cylindrical cell format, voltage rail, and inductive charging circuit. The physical dimensions — 48.70 x 16.82 x 16.82mm — match the OEM cell footprint, so the cell seats correctly against the motor contacts without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through the inductive charging base on an HX5350 unit and monitored BMS handshake. The cell accepted charge normally, reached full voltage without thermal event, and the motor drew consistent current across multiple brushing cycles.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eDock charging discipline for Ni-MH cells:\u003c\/strong\u003e\n    Remove the toothbrush from the charging base once fully charged and only return it when the charge is noticeably low. Ni-MH cells in continuous trickle-charge environments — like a bathroom dock — develop voltage depression faster than cells cycled through proper charge and discharge.\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 continuous dock charging on Philips Sonicare bases\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003ePhilips Sonicare bases deliver a low-level inductive charge continuously when a brush sits on them. Ni-MH cells are more sensitive to this than most users expect — constant trickle input causes voltage depression, a condition where the cell's usable voltage drops even though it reads as charged. The result is a brush that feels fully charged but loses motor speed quickly. Cycling the cell properly — charge to full, remove from base, use until low — slows this degradation significantly.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eToothbrush not charging on inductive base after new battery install\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eIf the brush shows no charging activity after fitting a new cell, the most common cause is inductive coil misalignment. The HX5350 base is sensitive to how the brush handle sits — even a few millimetres off-axis reduces energy transfer enough to prevent charging. Remove the brush, reseat it firmly on the base, and confirm the charging indicator activates. If the indicator still does not respond, check that the solder contacts to the new cell are clean and fully connected before assuming a faulty cell.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43426149728346,"sku":"BWCS-HX5350SL-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43426149761114,"sku":"BWCS-HX5350SL-2","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43426149793882,"sku":"BWCS-HX5350SL-3","price":31.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HX5350SL-1.webp?v=1779930435","url":"https:\/\/batteryweb.com\/products\/philips-hx5350-replacement-battery-12v-2500mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}