The internal battery of the PS3 maintains the system settings when the console is unplugged.
Note: Lithium ion battery shipping regulations limit the shipping methods for orders containing batteries. Domestic orders may only be shipped via Standard shipping. iFixit is not able to ship batteries internationally or outside the contiguous US at this time. iFixit Customer Support will contact you if your order needs to be modified after it is placed.
- Sony PlayStation 3 models CECHAxx, CECHBxx, CECHCxx, and CECHExx