{"product_id":"hp-presario-v6000-replacement-battery-3v-200mah-lithium","title":"HP Presario V6000 CMOS Replacement Battery 3V 200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHP Presario V6000 Series — 3V Lithium CMOS Replacement Battery (AHL03003095)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3V, 200mAh lithium coin cell that replaces the CMOS backup battery on the HP Presario V6000 and related Pavilion DV6000 and DV6400 series motherboards. It powers the RTC circuit and SRAM that store your BIOS settings, system clock, and hardware configuration when the laptop is shut down or unplugged. When this cell drops below the retention threshold, the board loses everything it had stored.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eV6000, DV6000, DV6400 motherboard fit:\u003c\/strong\u003e\n    These platforms share the same CMOS socket, connector tab configuration, and 3V retention circuit — the cell slots directly into the holder on the motherboard without adapter or modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We confirmed open-circuit voltage at 3.0V and measured retention current draw in the microamp range consistent with the RTC and SRAM standby load on this motherboard generation. BMS handshake is not applicable — this is a non-rechargeable primary cell.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install RTC reset:\u003c\/strong\u003e\n    After fitting the new cell, enter the BIOS immediately and set the correct date and time, then save and exit. The CMOS cell powers the RTC circuit, and any gap in supply — including the swap itself — resets the clock to a default value that must be corrected manually before the OS loads.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS clock resetting to 2000 after every power cycle on the Presario V6000\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe RTC on this motherboard is backed entirely by the CMOS coin cell the moment mains or main battery power is removed. Once the cell drops below approximately 2.8V, the RTC circuit loses retention voltage and resets to a hardcoded default — typically January 1, 2000 on HP laptops of this era. Plugging back into AC temporarily masks the symptom because the board draws from mains before it draws from the coin cell. Replacing the cell and saving the correct time in BIOS resolves the reset loop permanently.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCMOS checksum error on boot after fitting a new coin cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA checksum error immediately after installing a new cell usually means the CMOS SRAM was completely cleared before the swap — the board has no stored values to validate against and flags the mismatch on first POST. This is not a fault with the new cell. Enter BIOS setup, reload defaults or manually configure your settings, then save and exit. The checksum will recalculate correctly once valid data is written to SRAM at 3.0V supply.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43340119146586,"sku":"BWCS-HDV600BU-1","price":20.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43340119179354,"sku":"BWCS-HDV600BU-2","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43340119212122,"sku":"BWCS-HDV600BU-3","price":25.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HDV600BU-1.webp?v=1778366843","url":"https:\/\/batteryweb.com\/products\/hp-presario-v6000-replacement-battery-3v-200mah-lithium","provider":"BatteryWeb","version":"1.0","type":"link"}