HTC 2150 Battery

[Qazme]

Is there some place I can read about the R/C car voltage testing technique ?

I don't exactly agree with the fact that you want me to "accept" that the 50$ 1750mAh battery might be a 1500mAh and I should just be ok with it. It's up to the manufacturer to test their samples and rate them accordingly.

I've started enough controversy on another forum and I will begin testing a few samples with the same device/setup that BatteryBoss used. But I'd like to get a better understanding of the method you used.

thanks.

Wow nice introduction into the forums, so you started controversy somewhere else and decided to bring it here? I don't expect you to "accept" anything and I'm not saying you should be ok with anything, you should seriously read twice before jumping and not assume what people are saying.

But instead taking the time of convincing you I did test, or coaching you how to test, or arguing with you about how you should do it here is the basics:
Measuring the Capacity of a Battery - Storage

And what that link describes is why I said batteries are not rated for what they actually put out and why there is a difference and why battery boss's technique and testing sample is not adequate. Kind of the same principle behind them selling you a 40GB drive that is rated 40GB because the manufacturer staples that 1000MB is a GB but in reality 1024MB is a GB. By the time you add all that up you are expecting 40,960MB. That's a 4% difference! (On a 1750 battery that same difference would be 1680 battery but then add all the other things that change how they rate the battery versus actual output.)

That's how I did it but not using their hardware but some similar gear from the R/C hobby and a little electrical knowledge gained from school and common sense. It's not hard to test you just need to know how to properly convey what you are seeing and what is being offered, not what is hyped. Goes back to "Buyer Beware" a knowledgeable consumer never gets screwed.

 

[imma_rage_quit]

All I can say is WOW! I thought the 2150 would be much better than what you show.

You missed the part about the texts, emails, pictures, phone calls, wifi, gps, etc. it was a few posts down. I forgot to put it in that post.

 

[imma_rage_quit]

Also I'm about to put it on the charger now. About 15 hours and it reads 49% battery remaining. Even when I never touched my phone all day it was dead after 8 hours with the regular battery. So far I'm happy with this battery.

 

[daso]

Got the Big Fat Battery

Although it is obviously nothing pretty to look at, which extended battery really is. Regardless, I agree that I am not too happy with the humpback battery solution, it does seem to make a giant difference to a constant user. It also adds to extra heft (forget the shirt pocket). Definately better than carrying the charger around to recharge every three-four hours!

 

[DustinF00#AC]

Wow nice introduction into the forums, so you started controversy somewhere else and decided to bring it here? I don't expect you to "accept" anything and I'm not saying you should be ok with anything, you should seriously read twice before jumping and not assume what people are saying.

Sorry, not my intent, I went back and re-read your post, still feel like you're telling me that when a manufacturer rates battery, regardless of how they rate it and it not being against real world capacity, I should just accept it.

But instead taking the time of convincing you I did test, or coaching you how to test, or arguing with you about how you should do it here is the basics:
Measuring the Capacity of a Battery - Storage

Thanks, you did not use their tools that make it easy, you did it the hard way, I can respect that.

And what that link describes is why I said batteries are not rated for what they actually put out and why there is a difference and why battery boss's technique and testing sample is not adequate. Kind of the same principle behind them selling you a 40GB drive that is rated 40GB because the manufacturer staples that 1000MB is a GB but in reality 1024MB is a GB. By the time you add all that up you are expecting 40,960MB. That's a 4% difference! (On a 1750 battery that same difference would be 1680 battery but then add all the other things that change how they rate the battery versus actual output.)

Context and back story always help, I appreciate the example.

That's how I did it but not using their hardware but some similar gear from the R/C hobby and a little electrical knowledge gained from school and common sense. It's not hard to test you just need to know how to properly convey what you are seeing and what is being offered, not what is hyped. Goes back to "Buyer Beware" a knowledgeable consumer never gets screwed.

Makes sense.

I guess, all I was getting at, is that everyone can accept the example with the HD and GB vs Formatted capacity, when it comes to the batteries, its a bit different and allowing for different testing methods because different discharge rates will yield different results, its much much harder to wrap your head around the "rated" vs. "actual".

The largest problem is that there are so many different usage profiles that not one person is going to get the same experience out of the battery and their mobile phone.

To be clear, I am not here to cause trouble, I am here to continue my search for how others have tested batteries and why/how they did it.

 

[nmyeti]

Engadget widget that updates every few hours

That widget was a huge battery drain for me, so much so that I ditched it to just read from the website.