Re: 1800 mAH stock sized battery?
 

jmorton and others... Few things here, no particular order...

1.) 1800 mAH compared to 1500 mAH is a 20% increase over stock. That's virtually nothing. There is a good likelihood you'd never notice the difference even if there was one. If the Stock battery lasted 3 hours under "X" conditions, then the 1800 mAH battery would (theroetically) last 20% longer, which is only 3.6 hours - which is approximatly 35 minutes longer. If stock lasted 8 hours under "Y" conditions, then 1800 mAH battery would (theoretically) would last 9.6 hours, about an hour and a half longer.

2.) mAH is not the same concept as taking a container, and rating it for volume, IE: "this bottle is 2 liters". Batteries simply do not work that way. Here is a good explanation on batteries, charging rates, AH ratings, etc.
http://www.windsun.com/Batteries/Battery_FAQ.htm
Different companies may be measuring the mAH rating using different discharge currents. That throws the comparison right out the window. You really need to know their discharge current (ie, is it C/20, etc?) to know for sure if the comparison is fair.

3.) Batteries generally do not discharge in a linear fashion (as in they may discharge faster/slower at the start/end). You must start / stop testing at the same point in the charge cycle for accurate testing. I recommend starting at full charge, and running the device till it's dead. I would also record the start / end voltage.

4.) The relationship between current draw (demand, etc) - and how long the battery lasts, is ALSO not linear. This is due to the Peukert Effect. The higher the load / current draw / demand, etc, the FASTER the battery is discharged, relative to a lighter load. In other words, (random numbers/example), say you had a 500 mAH current draw on the phone, and the battery lasted 4 hours; you might be inclined to think that a 250 mAH current draw, might allow the battery to last 8 hours. That is NOT the case, in fact the smaller current draw will allow the battery to last even longer then anticipated.

As such it is CRITICAL when comparing batteries, that the discharge rate or current draw is known. An easy way to do this, would be to use a program like acbPowerMeter (it's free and graphs).
http://www.acbpocketsoft.com/Product...verview-2.html
I would do something like, enable Wi-Fi, and stream media continuously, and verify the average current draw. Run the battery dead doing this, verifying the same average current draw throughout. Then do the same thing again with the new battery. Remember testing is more accurate when you run multiple samples/tests and average.

5.) Batteries, even lithium rechargeables like this, have a break in period. You must completely discharge and recharge them several times, before their max life is obtained. There isn't a "memory effect" per se with Lithium, so it won't damage the battery to not fully discharge/recharge, but you won't see the maximum life until several cycles are completed. I would do this at least 10 times, for a fair comparison, on the new battery before "testing".


Hopefully this clears up some of the conjecture / noobery so that a fair comparison can be done...

Last thing I'll note, I have the stock battery, and I'm not thrilled at the performance. However, I didn't want to get an extended. So, instead, for around $4 shipped from ebay, I bought one of those retractable USB to mini 5pin usb cables. Like this:
http://cgi.ebay.com/USB-A-to-mini-US...QQcmdZViewItem
There are lots on ebay from many sellers. That's just the first I saw.
Retracts to a tiny assembly like 3" long that I can throw in my pocket. When extended it's 3 foot. Now I can charge my phone really anywhere - my xbox 360, any computer, laptop, any car / home charger that's usb... etc. Plus I can sync my phone or use nueMassStorage to access content on my SD card, virtually anywhere.. I keep one in my car, and one in my pocket all the time. USB provides around 500 mAH of charging power which is quite significant, if you're not drawing a lot of power on the phone while charging (ie turn off Wi-Fi, bluetooth, and cellular data connections while charging for best effect..)

Re: 1800 mAH stock sized battery?
 

I just got mine from that Amazon link today too, and it is also only 1500mAh! :( I rechecked my order online, and both it and the paper invoice in the package said 1800mAh. :scratch:

The seller of mine (through Amazon) was Selectinventory, Inc. Did you email Amazon, the seller, or both?

Re: 1800 mAH stock sized battery?
 

id love to know the results. i ahve this gorgeous mogul and i want to see the screen at full bright and run gps today but i wouldnt even think about doing these things and i have an extended batteries but not 1800. any price would be worth it i think to have freedom to do whatever you want, even if you had to charge it at night

Re: 1800 mAH stock sized battery?
 

I emailed the seller through Amazon and got this reply in about 10 minutes:

Re: 1800 mAH stock sized battery?
 

Nice! It's reasons like this I like buying things online... try getting service like that in a retail store!

I edited my previous post btw, added some links, a little more info, and fixed all the horrible spelling/grammer mistakes I made since I typed it in a hurry (in firefox, so no inline spell check).

Re: 1800 mAH stock sized battery?
 

Yes, I emailed them directly too. They told me of the shipping error and are working on it but they have yet to tell me they're shipping me an 1800mAh. Hopefully they will.

Re: 1800 mAH stock sized battery?
 

Protonus is right the battery needs a break in period. Now that my battery seems to be even more broken in I am liking it alot better. My stock battery had about an 8 hour life where this one is lasting for more than 10 hours of typical use.

PleaseStirMe

Re: 1800 mAH stock sized battery?
 

Ditto here. Amazon from Select Inventory and same promise. Any one who ordered one of these received the 1800 ma replacement they originally ordered yet?????
John:silent:

Re: 1800 mAH stock sized battery?
 

I got this email from them this Tuesday:My mail hasn't come yet today, but I expect it in the next day or two. Seems like they wouldn't be sending out emails if they planned on scamming everybody.

Re: 1800 mAH stock sized battery?
 

I sent an email asking if it had been shipped as promised and they said it had so I am waiting also.
I received an email from Amazon today asking if I wanted to rate my transaction for an OEM 1500 ma HTC battery? They have done a switcheroo on the product description from when we all ordered the 1800 and it reflects in their correspondence.
John