{"product_id":"ambrogio-40-basic-replacement-battery-252v-10200mah-li-ion","title":"Ambrogio 4.0 Basic 25.2V Replacement Battery 10200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAmbrogio 4.0 Basic \/ 4.0 Elite Series — 25.2V Li-ion Replacement Battery (1126-9105-01)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 25.2V 10200mAh (257.04Wh) lithium-ion battery for the Ambrogio 4.0 robotic lawn mower range. It fits the 4.0 Basic, 4.0 Basic 4WD, 4.0 Elite, and 4.0 Elite 4WD, along with over 60 additional compatible models. When the original pack can no longer hold a charge, this replaces it and restores autonomous mowing operation.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e4.0 series platform fit:\u003c\/strong\u003e\n    The 4.0 Basic and Elite models share the same 25.2V battery rail, connector pinout, and BMS handshake protocol. One battery covers both trim levels and their 4WD variants without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through charge cycles and simulated blade motor inrush loads. The BMS handled repeated high-draw events correctly, including protection tripping and reset behaviour under sustained load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eSeasonal storage tip:\u003c\/strong\u003e\n    If the mower has been sitting in an unheated garage below 10°C, bring the battery indoors overnight before the first spring charge. Cold Li-ion cells carry higher internal resistance, and the blade motor inrush on a cold pack can trip the BMS at startup before the motor reaches running speed.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharger showing a fault light after winter storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLithium-ion packs self-discharge over months of inactivity. If a pack drops below roughly 2.5V per cell during winter storage, most chargers enter a protection state and refuse to begin a standard charge cycle. The Ambrogio charger will typically flash an amber or red fault indicator in this condition. To recover the pack, leave it connected — some chargers will apply a low-current trickle for 10–15 minutes to bring cells back above the acceptance threshold before switching to normal charging. If the fault light persists after 20 minutes, disconnect, wait 5 minutes, and reconnect to trigger a fresh handshake attempt.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMower cuts out mid-row then restarts after a short pause\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a thermal protection trip, not a capacity fault. When the blade motor works through thick or wet grass, current draw spikes and the BMS monitors cell temperature continuously. If the pack temperature exceeds the BMS threshold, it cuts power to protect the cells — the mower stops, then resumes once the pack cools below the reset point. Allow a 5-minute cooldown on the dock before resuming. Recurring trips in normal dry conditions after the first 5 charge cycles indicate either a charging issue or a BMS fault worth investigating.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381308620890,"sku":"BWCS-ABL120VX-1","price":229.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381308653658,"sku":"BWCS-ABL120VX-2","price":273.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381308686426,"sku":"BWCS-ABL120VX-3","price":305.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ABL120VX-1.webp?v=1778899944","url":"https:\/\/batteryweb.com\/products\/ambrogio-40-basic-replacement-battery-252v-10200mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}