{"product_id":"robotic-smart-vacuum-cleaner-m-288-replacement-battery-144v-4000mah-ni-mh","title":"Robotic M-288 Smart Vacuum Replacement Battery 14.4V 4000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eRobotic Smart Vacuum Cleaner M-288 — 14.4V Ni-MH Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 14.4V, 4000mAh (57.6Wh) Ni-MH replacement battery for the Robotic Smart Vacuum Cleaner M-288. It powers the drive motors, suction fan, and onboard navigation system. When the original cell loses capacity after repeated charge cycles, this unit restores cleaning performance to factory levels.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eM-288 platform fit:\u003c\/strong\u003e\n    The M-288 runs a 14.4V drive rail shared across its motor and navigation board. Any replacement cell must match this voltage exactly — under-voltage causes navigation errors before suction even drops.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through full discharge under simulated carpet-load draw. The BMS held steady across sustained high-current pulls and cut off cleanly at the low-voltage threshold without false trips.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eDock charging on the M-288:\u003c\/strong\u003e\n    Do not leave the M-288 sitting on the dock permanently between uses. Ni-MH cells in continuous trickle charge develop capacity fade faster than those charged only when depleted. Charge to full, then remove 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 shows low on the M-288\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells under load show voltage sag before they hit the BMS low-voltage cutoff. On the M-288, the suction fan motor draws harder than the navigation board, so it feels the sag first. A partially blocked filter makes this worse — the motor compensates with higher current, accelerating the voltage drop. Clean the filter and check that the dustbin is empty before concluding the battery is the cause.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eM-288 motor cuts out mid-cycle then recovers after a few seconds\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a BMS overcurrent trip, not a battery failure. When suction is restricted — blocked filter, tangled brush roll, or dense carpet pile — the motor draws sustained current above the BMS threshold and the pack disconnects to protect itself. The BMS resets after a short thermal pause, which is why the unit recovers and carries on. Clear the obstruction, then restart the cycle. If it trips again on open floor with a clean filter, the cell itself may be fatigued and holding insufficient charge to meet motor-start current demand.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43428051419226,"sku":"BWCS-IRB420VX-1","price":99.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43428051451994,"sku":"BWCS-IRB420VX-2","price":116.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43428051484762,"sku":"BWCS-IRB420VX-3","price":129.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-IRB420VX-1.webp?v=1779933966","url":"https:\/\/batteryweb.com\/products\/robotic-smart-vacuum-cleaner-m-288-replacement-battery-144v-4000mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}