{"product_id":"bosch-bhn20l-replacement-battery-18v-2500mah-li-ion","title":"Bosch BHN20L 18V Replacement Battery 2500mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBosch BHN20L \/ Move 20V Series — 18V Li-ion Replacement Battery (801BPV180-01)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is an 18V Li-ion battery rated at 2500mAh (45Wh), replacing OEM part 801BPV180-01. It fits the Bosch BHN20L, BHN20L\/04, and Move 20V cordless handheld vacuums. Same voltage, same connector orientation, same BMS communication protocol as the original cell.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBHN20L and Move 20V platform:\u003c\/strong\u003e\n    These models share the same 18V battery bay, connector pinout, and BMS handshake requirements. Swapping between them uses the same cell — Bosch standardised the interface across this vacuum line to simplify servicing.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this battery on a BHN20L under sustained suction load and monitored BMS response. Voltage held steady across the discharge curve and the protection circuit triggered correctly at low-cell threshold — no premature cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eDock charging habit on cordless vacuums:\u003c\/strong\u003e\n    Do not leave the BHN20L sitting on the charging dock after the battery reaches full. Continuous dock contact on this platform delivers a low-level trickle that accelerates capacity fade. 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 hits low\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe BHN20L motor draws more current when airflow is restricted — a partially blocked filter forces the motor to work harder, pulling amps beyond its rated draw. The BMS reads this elevated current as a potential fault and reduces output voltage to protect the cell. The result is weaker suction even though the battery still shows charge. Clean or replace the filter first — if suction restores, the battery was never the issue.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMotor cutting out mid-clean and then recovering after a few seconds\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a BMS overcurrent trip, not a dead battery. When suction is sustained against a blockage or dense carpet pile, current spikes briefly above the protection threshold. The BMS shuts the output, waits for the cell temperature and load reading to normalise, then re-enables. It is a repeating cycle until the restriction is cleared. Remove any blockage from the nozzle and inlet path, then resume — the BMS will reset and hold output voltage without tripping.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43426388934746,"sku":"BWCS-BHN200VX-1","price":50.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43426388967514,"sku":"BWCS-BHN200VX-2","price":59.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43426389000282,"sku":"BWCS-BHN200VX-3","price":66.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BHN200VX-1.webp?v=1779931201","url":"https:\/\/batteryweb.com\/products\/bosch-bhn20l-replacement-battery-18v-2500mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}