[HTC One S] psych0t1c:
Kids, you are all well aware that the battery indications from the OS are rubbish at this point? Even the physical properties of the battery are not set in stone yet.

I have found it takes about 10 charge and reload cycles to get any proper and meaningful and reliable output from battery indicators on Android (initially and after power stats resets). Thats about twice as long as the battery needs to come to its final state of power containment.

Do yourselves a favor and charge overnight once you receive the device, without playing around on it during the initial charge. That little patience goes a LONG way in terms of battery runtime and longevity. And of course, don't deplete the charge down to zero ever. That really hurts Li-Ion and Li-Po batteries. Best to start charging between 30 and 40% capacity left and it also does not hurt to neglect full charges and unplug at 80 or 90% regularly.

I have treated my Sensation battery to this behavior and though I have no numbers recorded to back it up I would say that after a year it hasn't lost a noticeable amount of runtime (of course there HAS to be some loss, the laws of physics dictate it, but its so low that its hardly noticeable in the rgular day to day use). I find HTC supplies very decent batteries with their devices, but some users / usage profiles just kill the battery with wrong / mis-informed charging habits. And I doubt that HTC ill start cheaping out on the batteries just now with this series because the fallout would really hurt biz (cheap batteries, non-replaceable -> lots of devices going back to service, customers unhappy, neg. publicity, etc.)

If this is contradictory to what you have heard, exprienced or done in the past with your batteries, let me know. I have been taking my cues from this source, which seems to be credible and well-researched and reasoned.

http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries

http://batteryuniversity.com/learn/article/how_to_charge_when_to_charge_table

Also, if you are a heavy user and don't last a full day within the runtime of this battery, instead of nursing it from USB for a few minutes every now and then get yourself an external batterypack that delivers a charge amperage similar to the wallcharger supplied by HTC. Same with car chargers, make sure that they deliver 1000mAh or more (I have seen Belkin made 12v-to-USB adapters that supply 1200 or 1500mAh IIRC). Some of the cheap ones stay within the "original USB power specs" which only called for 500mAh and that is not the way to go... A stiffer amperage is is more desireable and better for the battery and also cuts the time needed to go from 30 to 90% noticeably. Of course these days a lot of manufacturers crap on the original USB specs and allow their devices to deliver more juice through USB, this is especially true on Notebooks and Laptops that have an "always-on" USB-Port that even charges when the notebook itself is off/in standby, but also a few of the recent devices (Desktop / Thin Client / Consumer PCs) I have seen deliver varying (low) amounts to some ports and higher to others. Usually the ports on the rear which sit directly on the motherboard allow higher amperage draw while USP-Ports that are wired through the case from a mainboard header plug to the front of the case for easy acessibility only allow a lower charging amperage.