{"product_id":"philips-crp777-replacement-battery-144v-5200mah-li-ion","title":"Philips CRP777 14.4V Cordless Vacuum Replacement Battery 5200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003ePhilips CRP777 Series — 14.4V Li-ion Replacement Battery (CRP777)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 14.4V 5200mAh Li-ion replacement battery for the Philips CRP777 cordless vacuum. It fits the CRP777, CRP777\/01, CRP781, and FC9910\/01\/A models. The original battery uses the same voltage rail and BMS connector — this cell matches those specs.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCRP777 and CRP781 platform fit:\u003c\/strong\u003e\n    These models share the same 14.4V battery bay, connector pinout, and BMS handshake protocol. A single cell covers the full range without adapter or modification.\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 CRP777 platform. The BMS communicated correctly with the charger, accepted a full charge without fault codes, and held voltage across variable motor loads including carpet resistance simulation.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eDock charging habit on the CRP777:\u003c\/strong\u003e\n    Do not leave the vacuum sitting on the charging dock between uses. Continuous dock charging applies a low-level trickle current that degrades Li-ion cell capacity faster than regular charge-and-remove cycles. Charge to full, then take it off.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCordless vacuum losing suction before the battery indicator reaches low\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a voltage sag issue, not always a dead battery. When the motor draws current against a blockage or a restricted filter, internal cell resistance causes voltage to drop faster than the indicator tracks. The vacuum's power stage interprets this as low battery and reduces motor speed to protect the cell. Clear the filter and check the brush roll for obstruction — a clean filter alone can restore full suction at the same charge level.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMotor cutting out mid-clean and then recovering after a short pause\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a BMS overcurrent trip. Sustained restricted airflow — usually a clogged filter or blocked hose — forces the motor to pull above its rated current draw. The BMS cuts the output circuit to protect the cell, which reads as the vacuum switching off. After a brief pause, the BMS resets and the unit powers back on. Fix the restriction before replacing the battery — if the filter is blocked, a new cell will trip in exactly the same way. Check that the filter reads below 0.5kPa resistance before assuming the battery is the fault.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43426463711322,"sku":"BWCS-PHC912VX-1","price":88.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43426463744090,"sku":"BWCS-PHC912VX-2","price":104.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43426463776858,"sku":"BWCS-PHC912VX-3","price":115.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-PHC912VX-1.webp?v=1779933315","url":"https:\/\/batteryweb.com\/products\/philips-crp777-replacement-battery-144v-5200mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}