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Small round silver lithium CMOS coin cell battery

DBTLAP

DBTLAP CMOS Battery for Toshiba Satellite P775-S7215

SKU CH-114H-3FV9C

Replacement CMOS RTC battery for Toshiba Satellite P775-S7215 laptop motherboards

  • Battery TypeLithium
  • Keeps system clock accurate with lithium CMOS cell
  • Direct replacement for Toshiba Satellite P775-S7215 motherboard
  • Tested before shipping for reliable first boot
  • Supplies BIOS power when main battery removed
  • Single battery included for straightforward installation

Compatible CMOS Battery for Satellite P775-S7215

This DBTLAP lithium CMOS battery is a direct replacement for the real-time clock cell in the Toshiba Satellite P775-S7215 laptop. It restores BIOS settings retention and system time accuracy when the original cell is depleted or faulty. The part is intended for motherboard-level maintenance rather than main power supply.

Passive Lithium Cell with No Active Cooling

As a standard lithium coin cell, the battery operates without fans, heatsinks or power draw that would affect system thermals or acoustics. It supplies a constant low-voltage current to the RTC circuit only when the laptop is powered off. No additional power supply capacity or thermal headroom is required for installation.

Replaces a Dead or Leaking On-Board RTC Cell

This unit addresses the specific failure mode of a drained or cracked CMOS battery that causes date reset, BIOS checksum errors or boot refusal. The upgrade is worthwhile when the laptop exhibits those symptoms and the original soldered or socketed cell is no longer serviceable. It is not a substitute for a main laptop battery or a higher-capacity power source.

Highlights

  • Keeps system clock accurate with lithium CMOS cell
  • Direct replacement for Toshiba Satellite P775-S7215 motherboard
  • Tested before shipping for reliable first boot
  • Supplies BIOS power when main battery removed
  • Single battery included for straightforward installation

Specifications

Battery TypeLithium

Questions about this item

How do I install the CMOS battery in my Toshiba Satellite P775-S7215 and what step is often missed?

Power off the laptop and disconnect the main battery. Open the case to access the motherboard, unplug the old CMOS battery connector, fit the new lithium cell and reconnect it. The step often missed is forgetting to unplug the main battery first, which can cause a short.

What maintenance or replacement will this CMOS battery need later?

The lithium CMOS battery typically lasts several years. When the system clock starts losing time or BIOS settings reset after shutdown, the cell is depleted and must be replaced with another compatible CMOS battery.

What limit appears first under sustained use of this CMOS battery?

The lithium chemistry provides a finite charge capacity. Under continuous load from the real-time clock and CMOS memory, the voltage gradually drops until it can no longer maintain BIOS settings, at which point the battery must be replaced.

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