DBTLAP CMOS Battery for HP Pavilion dv7-1004ea

Direct Replacement for Pavilion dv7-1004ea

This CMOS battery is built specifically for the HP Pavilion dv7-1004ea laptop motherboard. It restores the system clock and BIOS settings that are lost when the original cell fails. The lithium chemistry provides reliable low-current operation for real-time clock circuitry. Install it to fix boot errors and date resets caused by a depleted battery.

Lithium Coin-Cell Interface Limits

The battery uses a standard lithium coin-cell form factor that plugs directly into the motherboard header. It supplies the 3 V nominal voltage required by the RTC and CMOS circuits. The interface delivers only microampere currents, so it cannot power any other subsystem. Polarity and physical dimensions must match the original socket exactly for a secure fit.

RTC Backup Capacity and Service Life

A fresh lithium cell typically maintains BIOS settings and the real-time clock for several years of continuous standby. It comfortably handles daily power cycles and long periods unplugged from mains power. Capacity is exhausted when the system clock drifts or BIOS settings revert to defaults at every cold start. At that point the battery must be replaced again.