[nxtech3]

it all depends on how often you need to check your email. I have mine set to thirty minutes. I dont need to have an email as soon as its sent. Normally im driving from store to store anyways so i dont need to get into an accident trying to read a non-important email. If you set pull intervals far apart it will definitely save battery life. Plus i have mine set to send and receive when i push send on an email so if im typing an email and send it, anything that is waiting to be pulled would come in anyways.