The rundown on phone batteries
The performance of mobile phone batteries varies greatly - some last for two days and others more than three weeks, tests show.
The Consumer Council said that while sound clarity and quality of reception were fairly consistent among all 24 models tested, battery performance varied greatly.
The winner was Philips' Xenium 989 PCS, which ran for 530 hours on standby and 112 hours when in use. The GSM model lasted 460 hours on standby and 66 when in use. Both cost $2,150.
The worst was the Ericsson T28sc. The GSM model lasted just 56 hours on standby and provided 20 hours of talk time. The PCS version ran for 60 hours on standby and 28 when being used. They cost $1,580.