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Small black rectangular lithium-polymer battery with two wire leads

Cameron & Co

Cameron & Co CMOS Battery DS-CS-OCT720BU 3.7v 250mAh 0.93Wh

SKU CH-EBYS-Y1Q01

Replaces the CMOS backup battery in Oracle Tablet 720 and 721 models with a 3.7 V 250 mAh Li-Polymer cell

  • TypeBattery
  • Keeps Oracle tablet settings alive with 3.7 V 250 mAh Li-Polymer cell
  • Matches original PT352044 part for direct replacement in Tablet 720 and 721
  • Slim 41.60 × 20.14 × 4.30 mm profile fits tight CMOS slots
  • Delivers 0.93 Wh capacity for reliable real-time clock backup
  • Brand-new Cameron Sino unit built to 100 % OEM compatibility

Purpose and compatibility

This CMOS backup battery fits Oracle Tablet 720 and Tablet 721 devices. It replaces part number PT352044 and restores system clock and BIOS settings when the original cell is depleted. Buyers who need a battery for any other tablet or laptop model cannot use this part.

Build and connection

The lithium-polymer cell measures 41.60 x 20.14 x 4.30 mm and is supplied in black. Its compact rectangular shape slides into the dedicated CMOS compartment on the mainboard, so no soldering or adapter cables are required during installation.

Deciding specification

The cell delivers 3.7 V and 250 mAh for a total energy of 0.93 Wh. If the original battery in the Oracle tablet carries a different voltage or capacity, this replacement will not function correctly.

Highlights

  • Keeps Oracle tablet settings alive with 3.7 V 250 mAh Li-Polymer cell
  • Matches original PT352044 part for direct replacement in Tablet 720 and 721
  • Slim 41.60 × 20.14 × 4.30 mm profile fits tight CMOS slots
  • Delivers 0.93 Wh capacity for reliable real-time clock backup
  • Brand-new Cameron Sino unit built to 100 % OEM compatibility

Specifications

BrandCameron Sino
ModelDS-CS-OCT720BU
TypeBattery

Questions about this item

What voltage does the DS-CS-OCT720BU supply and what capacity does that provide?

The battery delivers 3.7 V with a 250 mAh capacity, giving 0.93 Wh of energy for the CMOS backup circuit.

Will the 41.60 x 20.14 x 4.30 mm form factor fit the Oracle Tablet 720 and 721 battery compartment?

Yes, those exact dimensions match the original PT352044 cell, so it seats correctly in the Tablet 720 and 721 chassis.

How is the Li-Polymer cell installed and what common mistake should be avoided?

Disconnect power, remove the old cell, plug the new connector in the same orientation, and secure it; reversing the polarity connector is the frequent error.

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