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Small round lithium coin cell battery with wire leads and connector

DBTLAP

DBTLAP CMOS Battery for A500 series laptops

SKU CH-R8SG-CWKBP

Replacement lithium CMOS RTC BIOS battery for select A500-series laptops, tested before shipping

  • Battery TypeLithium
  • Keeps system time and BIOS settings accurate
  • Lithium chemistry provides stable voltage for RTC
  • Fits A500D-10H A500D-108 A500-138 A500-1C0 models
  • Compatible with A500-ST5601 A500-ST6622 A500-ST56X7 A500-S6017
  • Tested before shipping to ensure reliable replacement

Replacement CMOS battery for A500 series

This lithium coin cell restores the real-time clock and BIOS settings on compatible A500 laptops. It fits models such as the A500D-10H, A500D-108, A500-138 and A500-1C0. The battery is intended for motherboard use only, not as a main laptop power source. Each unit is tested before shipping to confirm basic function.

Steady voltage retention over years

The cell delivers a stable low current to keep CMOS memory alive while the notebook is unplugged or powered off. It maintains the system clock and firmware configuration across long idle periods without rapid self-discharge. Performance remains consistent through the expected service life of the component. No sudden voltage drops occur under normal standby conditions.

Low thermal impact and minimal draw

The battery operates at ambient temperature inside the chassis and generates no measurable heat during use. Power consumption is limited to microamp-level leakage required by the RTC circuit. Silent operation is inherent because the part has no moving components. It imposes no additional cooling or power-supply demand on the laptop.

Highlights

  • Keeps system time and BIOS settings accurate
  • Lithium chemistry provides stable voltage for RTC
  • Fits A500D-10H A500D-108 A500-138 A500-1C0 models
  • Compatible with A500-ST5601 A500-ST6622 A500-ST56X7 A500-S6017
  • Tested before shipping to ensure reliable replacement

Specifications

Battery TypeLithium

Questions about this item

Will the CMOS battery run hot or draw noticeable power during continuous operation?

The lithium cell supplies only a tiny standby current to the real-time clock, so it produces no measurable heat and consumes negligible power.

Which connector or header must the motherboard already have for this battery to fit?

The battery connects to the standard two-pin CMOS header found on the A500D-10H, A500D-108, A500-138, A500-1C0, A500-ST5601, A500-ST6622, A500-ST56X7 and A500-S6017 boards.

Can the battery be used alongside the original power components kept from an older A500 series laptop?

Yes, it replaces only the CMOS RTC cell and works with the existing motherboard, charger and main battery without modification.

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