{"product_id":"fomt-r620c-replacement-battery-148v-2600mah-li-ion","title":"Fomt R620C Stick Vacuum Replacement Battery 14.8V 2600mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eFomt R620C — 14.8V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 14.8V, 2600mAh (38.48Wh) Li-ion battery for the Fomt R620C cordless stick vacuum. It replaces the original pack when capacity has dropped or the battery no longer holds a charge. Fits the R620C model specifically.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eR620C platform fit:\u003c\/strong\u003e\n    The R620C runs a 14.8V four-cell Li-ion pack to drive the motor and brush roll. This replacement matches that voltage rail and cell configuration, so the BMS communicates correctly with the vacuum's charge and discharge circuitry.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through charge and full discharge on the R620C platform. The BMS held its overcurrent threshold correctly under simulated restricted-filter load, and the charge cutoff triggered cleanly at capacity.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eDock charging habit on the R620C:\u003c\/strong\u003e\n    Do not leave the R620C on the charging dock continuously. Cordless vacuums held on trickle charge develop capacity fade significantly faster than those charged only when depleted. Charge to full, then remove the vacuum from the dock.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSuction dropping before the battery indicator reaches low on the R620C\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the motor draws more current than the BMS allows under load — not because the battery is empty. A partially blocked filter forces the motor to work harder, spiking current draw and causing the BMS to throttle output voltage before the indicator reflects a low state. The vacuum feels like it's losing charge early, but the real trigger is restricted airflow. Clean or replace the filter first, then recheck suction performance at full charge.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMotor cuts out mid-clean, then recovers after a short pause\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a BMS overcurrent trip — not a faulty battery. When sustained suction restriction drives current above the protection threshold, the BMS disconnects the output to protect the cells. After a brief thermal or timer reset, it reconnects and the motor starts again. The fix is clearing the blockage or cleaning the filter before the next run. If cutouts continue on an unblocked machine, check that cell voltage at rest is above 14.0V — below that, the pack may need replacement.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43428038410330,"sku":"BWCS-HAT322VX-1","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43428038443098,"sku":"BWCS-HAT322VX-2","price":31.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43428038475866,"sku":"BWCS-HAT322VX-3","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HAT322VX-1.webp?v=1779933938","url":"https:\/\/batteryweb.com\/products\/fomt-r620c-replacement-battery-148v-2600mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}