Last Month I received an extended battery from Mugen Power . This extended battery is 3000mAh compared to the standard 1350mAH that comes with the HTC Kaiser.
Top view comaprison battery and cover
What attracted me to this battery was not only to have more juice available to me, but also the nice looking battery cover that comes with it. The battery cover is not like any others where you have a bulging top or bottom on the device. No, this cover was straight from top to bottom. The cover has many features as the original cover has as well. The opening for the camera is in a chrome finish with an opening for the lens and a speaker like shield for the speaker. The only thing I am missing is a clear lens cap that covers the hole for the camera. Now dust can get on my original lens easily and also into my device. The cover has a nice shiny black finish to it and also a WiFi and Bluetooth logo printed on it. If you use an external GPS antenna, you still can with removing the rubber cap also in this cover. Since that the cover is straight al over the device you will have some empty space under the cover where the battery is not located.
Original battery and cover compared with Mugen Power solution
Now the performance! They clearly make a statement that you have to use it to drain the battery as much as possible before recharging. You have to do this a couple of time to reach the maximum capacity.
In the first couple of days of using this battery it indeed didn’t give me the 3x more power as I had hoped for. However this started to increase dramatically after a couple of days. I have Emoze (Push E-mail) constantly running on my device and I use my phone heavenly many other ways in receiving data. Now instead of really only 8 hours of use, I can go to a trade show early in the morning and continue on to late in the evening without any worries.
Extended battery placed in device
This extended battery makes your device a little heavier and clunky, but for those long days I really need it. The unit still fits in the original holster but unfortunate it does not fit in my custom car holder due to the extra thickness all over the length of the device.
Device with the cover of the extended battery
Original height of the device
Recently I have upgraded my device with a new radio and the drain of my battery has dramatically been reduced. I am now able to go 2 full days with my original battery and almost a week with this extended battery from Mugen Power Batteries.
Mugen Power Batteries is your source for the extended battery of your device. Please check out their website and see their whole line up of extended batteries for most mobile devices.