Carrying an extra battery

[CBitez]

I am due for an upgrade in May. I will probably get an Evo or wait for a better phone to come out. My Hero is already bad on battery (I have done everything I can to make it decent). I was wondering do you think it's a good idea to just buy an extra battery, and when my regular one goes down to say 20%, I just swap them? I was also wondering if I did carry an extra, and it was fully charged, how long would it stay 100%? I dont want to put it in and its drained from 100 to like 60 or less from just sitting in the car, or my pocket.

 

[jroc]

For everyday use, I would do an extended battery. Normally the biggest size last longer than a day.

Newer phones since the EVO, the chips are being designed to help with battery life so a newer phone would be a better option for battery life anyway.

 

[Clementine_3]

I carry an extra battery for my Droid, one is older and doesn't hold a charge well (that is what I use as the 'spare'). I've never really paid attention to how long it stays at 100% while just sitting around though, but it seems to be fine even after a few days. I charge it up and toss it in my laptop bag and tote it back and forth to work. I pop it in my pocket if I'm going out and think it will be needed too, like when I go to my sister's and her kids will be playing Angry Birds endlessly. When I do use it it shows 100%...but, as I said, it's old so doesn't last a ton either if I use it a lot.
I picked up one of these on Amazon, it charges slowly but works. They seem to be about the same price on Amazon and VRZ now...

 

[snapper.fishes]

I have an extra battery that I only use when travelling far from home. I only use it about once per month, but the charge always stays in.

 

[sammyb40]

I do carry an extra battery also on trips or if gone all day. I order from ebay a 2000 mah plus a small wall charger

 

[zipidy4]

Where is the best site to purchase an extra battery for a recently acquired htc inspire 4g?

 

[smaggs]

Where is the best site to purchase an extra battery for a recently acquired htc inspire 4g?

I would also like to know this. Is there any danger to the phone in using just your average ebay batteries? or just the risk of getting crappy battery life out of them?

 

[Charger Harbor]

In modern day it's best to get a power bank. I'm sure you all know that now, though.