{"product_id":"hp-probook-640-g1-replacement-battery-108v-8400mah-li-ion","title":"HP ProBook 640 G1 Compatible Battery CA06XL 10.8V 8400mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP ProBook 640 G1 — 10.8V Li-ion Replacement Battery (CA06XL)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 10.8V, 8400mAh (90.72Wh) Li-ion battery for the HP ProBook 640 G1, ProBook 640, ProBook 645, and ProBook 655. It replaces OEM part CA06XL and its associated cross-reference numbers. Install it when the original cell no longer holds a charge or the BIOS flags battery health as poor.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eProBook 640\/645\/655 compatibility:\u003c\/strong\u003e\n    These models share the same 10.8V battery rail, connector pinout, and SMBus BMS handshake protocol. One cell covers the full range without firmware conflicts.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell on a ProBook 640 G1 unit. The BMS initialised correctly, charge accepted across all three cells, and the fuel gauge IC began calibration without manual intervention.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install discharge cycle:\u003c\/strong\u003e\n    After installing, run one full discharge down to hibernate cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after every cell swap.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reporting battery health as poor after installing a new cell\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe ProBook 640 G1 BIOS reads health data stored in the battery's EEPROM, not from live cell measurements. When a new cell is fitted, the EEPROM counters reset to zero and the BIOS interprets this as an unrecognised or degraded pack. This is not a fault with the replacement cell. Run the battery learn cycle — discharge fully to hibernate cutoff, then charge to 100% without interruption — and the BIOS health indicator will update correctly within one to two cycles.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLaptop shuts down abruptly at 20–30% charge shown on screen\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC has not yet calibrated against the new cell's actual discharge curve. The reported percentage and the real cell voltage diverge, and the system cuts power before the gauge catches up. It is most likely to occur under full CPU and display load, where voltage sag is steepest. Complete two full discharge-to-hibernate and uninterrupted full-charge cycles, and the fuel gauge will track actual cell voltage accurately — confirmed at 10.8V nominal under load in our bench tests.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409605230682,"sku":"BWCS-HPG640HB-1","price":94.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409605263450,"sku":"BWCS-HPG640HB-2","price":108.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409605296218,"sku":"BWCS-HPG640HB-3","price":119.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HPG640HB-1.webp?v=1779580172","url":"https:\/\/batteryweb.com\/products\/hp-probook-640-g1-replacement-battery-108v-8400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}