I have standard 1500mah battery in my Samsung Galaxy S phone and it lasts around 24 hours. Can I use a larger (say 1650mAh) battery so I can get a bit more battery life?
A battery such as this extended battery from Mugen Power can be used on the Galaxy S without adding thickness and will usually give you around 30% better battery life. Always be careful when using non-OEM batteries in your phone, there are a lot of cheap ones out there, but a no-name brand battery might leak or short out. Read the reviews and remember, you get what you pay for.