{"product_id":"benq-joybook-r45-replacement-battery-111v-4400mah-li-ion","title":"BenQ Joybook R45 Replacement Battery A32-T14 11.1V 4400mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBenQ Joybook R45 — 11.1V Li-ion Replacement Battery (A32-T14)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is an 11.1V, 4400mAh Li-ion battery pack for the BenQ Joybook R45 notebook. It replaces OEM part number A32-T14. Fits the Joybook R45 series directly — same connector, same voltage rail, same form factor.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eJoybook R45 platform fit:\u003c\/strong\u003e\n    The R45 uses a single 11.1V three-cell series pack with a standard SMBus-connected BMS. The A32-T14 connector and pin layout are specific to this chassis — the BMS negotiates charge termination and cell reporting through that bus, so voltage and pinout must match exactly.\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 R45 hardware. The BMS accepted the new pack without fault codes, charge termination triggered correctly at 12.6V, and the SMBus reported cell status cleanly to the firmware.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle calibration on the Joybook R45:\u003c\/strong\u003e\n    After installing, run one full discharge to hibernate-cutoff, then charge uninterrupted to 100%. The R45 BIOS uses a battery learn cycle to map the new cell's capacity curve — skipping this step causes the fuel gauge IC to report stale data from the old pack, which throws inaccurate health warnings on every boot.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Joybook R45 shuts down at 20–30% after a battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens because the fuel gauge IC is still reading the old cell's discharge curve. The new cell's voltage drops faster under combined CPU and display load than the BIOS expects at that state-of-charge percentage. When the cell voltage hits the BMS low-voltage cutoff — around 9.0V under load — the system cuts power instantly, even though the gauge still shows charge remaining. Running two or three full discharge-to-recharge cycles recalibrates the fuel gauge IC against the new cell's actual voltage profile and eliminates the premature shutdown.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS showing \"poor battery health\" or \"unknown\" immediately after fitting the A32-T14\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe R45 BIOS reads health data cached in EEPROM from the previous pack — it does not auto-reset when a new cell is installed. Until the firmware completes a full learn cycle, it compares the new cell's reported data against the degraded baseline stored from the old battery. Run a full discharge to hibernate-cutoff, then a full uninterrupted charge to 100%, and reboot. After that cycle the BIOS re-writes its EEPROM baseline and the health warning clears.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409797677146,"sku":"BWCS-BUR45NB-1","price":104.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409797709914,"sku":"BWCS-BUR45NB-2","price":119.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409797742682,"sku":"BWCS-BUR45NB-3","price":130.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BUR45NB-1.webp?v=1779580971","url":"https:\/\/batteryweb.com\/products\/benq-joybook-r45-replacement-battery-111v-4400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}