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Small round lithium CMOS battery for Dell Vostro 3550

DBTLAP

DBTLAP CMOS Battery Compatible For Dell Vostro 3550

SKU CH-JSPQ-XSYPH

Keeps system time and BIOS settings on a Dell Vostro 3550 motherboard with a tested lithium CMOS battery

  • Battery TypeLithium
  • Replaces the motherboard RTC battery for Dell Vostro 3550
  • Lithium chemistry keeps BIOS settings and system clock running
  • Tested before shipping to confirm reliable operation
  • Direct replacement for a faulty or cracked CMOS cell
  • Single battery included for quick motherboard maintenance

Compatible Dell Vostro 3550 CMOS Battery

This lithium CMOS battery is designed for the Dell Vostro 3550 laptop motherboard. It supplies the low-voltage power needed to retain BIOS settings and the real-time clock when the main battery is removed. The part is new and tested before shipping. It is not a main laptop battery and will not power the system during use.

Sustained Low-Current Reliability

The cell delivers a steady microamp current over years rather than high bursts, keeping date, time and firmware configuration intact through long shutdowns. A fresh unit prevents the checksum errors and boot prompts that appear when the original coin cell finally exhausts. Each battery is verified before dispatch to confirm it holds voltage under this continuous load.

Lithium Coin-Cell Chemistry

The lithium chemistry provides the stable 3 V output and multi-year shelf life that motherboard RTC circuits require. Alkaline or silver-oxide alternatives cannot match this voltage stability and would cause premature CMOS corruption. Buyers needing a rechargeable main power pack or a higher-capacity backup for peripherals should choose a different product type.

Highlights

  • Replaces the motherboard RTC battery for Dell Vostro 3550
  • Lithium chemistry keeps BIOS settings and system clock running
  • Tested before shipping to confirm reliable operation
  • Direct replacement for a faulty or cracked CMOS cell
  • Single battery included for quick motherboard maintenance

Specifications

Battery TypeLithium

Questions about this item

Will the CMOS battery draw noticeable power or generate heat when the Dell Vostro 3550 runs all day?

The lithium CMOS battery only powers the real-time clock when the laptop is off, so it adds no measurable heat or power draw during daily use.

What must I already have to install this CMOS battery in a Dell Vostro 3550?

You need a small Phillips screwdriver to open the chassis and access the motherboard header where the battery plugs in.

Can this replacement CMOS battery work alongside the original main battery and charger in a Dell Vostro 3550?

Yes, it connects to a separate motherboard header and operates independently of the main battery and AC adapter.

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