3.7V 3500mAh High Capacity Battery Pack with Back Cover for HTC Desire Z

Pros: Stock battery lasts me roughly 7-8 hours, with this one lasts up to 18 hours on medium use. Light use could last me up to 2+ days (weekends).

Cons: Battery cover is made of plastic and the hinges breaks of easily. also not sure if this is actually 3500mah

Other: really satisfied with what I bought, the added bulkiness is not an issue (makes it easier to grip the phone in landscape mode). The only problem for me was the battery cover being of low quality.

Pros: Helps the phone work longer and gives a nice grip when writing emails and messages

Cons: In 4 months it started losing capacity and in six months the original battery is at about the same level. The cover broke after one month but still held on enough to be usable.

Other: even though it has it's minuses it still is a very usable product and still upgrades the battery.

Pros: Best battery available for the HTC Desire Z the original battery was having difficulty handling normal daily use but the Hi capacity one work a couple day's without recharge!!! Tested for 5 hours as a portable hotspot! Original battery would quit after 1.5 to 2 hours the hi cap one was still over 3/4 charged after 5 hours!!!

Cons: Will not fit most protective cases.

Other: if you need more battery time this one is for you! only problem is that most protective case will not fif you need more capacity without external batteries this is the perfect item

Pros: -makes my phone battery last WAY longer, I can run my phone overclocked, no power saving, but still last atleast a day.

Cons: -not sure of actual capacity (tested and seems to be around 2500mAh)

Other: this battery is very cheap, but the quality is pretty decent. The back case sits perfectly on the back of my phone, as does the new battery. It works excellent, and is nearly as good as a mugen battery, but at 10% the price. a great buy I say

Pros: +My HTC Desire Z lasts longer +Battery lasts about 1-3 days, depending how much I use my phone +Battery itself looks good quality (labels) +Fits perfectly to phone +Gives nice grip when writing messages, emails and surfing at internet.

Cons: -Not sure about real capacity -Cover quality is not the best -Battery loses it's maximum capacity fast -Size, may not fit to your pocket or proctive case

Other: I am satisfied with this. Good battery, buy it if you need to use your phone alot.

Pros: Extending the stand-by time of my phone. Nice price, nice value for money. Battery cover included.

Cons: Capacity is never ever 3500mAh. I recharged the empty battery with my B6 charger, only 1500mAh charged in. Although if battery hasn't been fully empty, this is too less!

Other: Depending on the price, it's worth trying. For that price, you can't get even a used battery in Germany for my phone.

Pros: It gets your phone through the day without an extra charge needed. The price is really good for what you get

Cons: The cap doesnt look very sturdy. Not sure if it will survive a drop on the floor.

Other: If you have to charge multiple times a day with the stock battery, this one will definetly get you through the day with only one charge. Its worth the money