I would stick with factory HTC batteries and covers.
I see a bad review that some covers get no 3g and no 4g
The best and cheapest place to buy an extended battery would be vzw or eBay, but I have the HTC 2750mah battery, it last me 1day thru heavy use. It was on sale at vzw store for 25.00 when I bought mine....
HTC Rezound User..
Last edited by Willt365; 08-25-2012 at 06:23 PM.
What I found out from HTC is that they don't have nor do they sell nor do they warranty an extended battery (2750 maH battery) for the Rezound smartphone. Even though the battery is labeled just like the original battery.
The HTC 2750mah extended battery is sold by vzw, they r on sale for half off as we speak, and is warranted by vzw as long as it is bought thru them, this is just fyi, please research and post results, but it works great for me. I get over a day with it, it feels great in the hand and they do have the extended cases for it, I have the gel case, hope this help...