BANISH BOGUS BATTERY'S! How To Test In One Easy STEP!

---

A DITTY

Batteries, batteries everywhere and yet not an amp hour to spare. Tiny brains draining power, to die so soon - despair!


THE LIES WE TELL OURSELVES

The posters initial claims of " I got 50 hours of moderated use! " is sure to degenerate into " umm well it was cheap and it will make a good backup battery at least. " How can you respond to that? I mean, I for one was pulling for the guy to best the odds... What response could be appropriate... "Hey, don't move let me kick you in the head while your down".... Just doesn't seem nice.

IMPROVEMENT

The Samsung captivate came with a 1500 mAh oem battery... a 1800 mAh oem was latter released for a sister phone and while a little thicker than the original, it still fit into the captivate original back and all... Sweet!

A MOTHERS LOVE

The problem is that for most of us battery testing is too subjective to provide useful information. My "moderate use" is your "heavy"... It's as useful as comparing how much our mothers love us.

D=M/V (DENSITY=MASS/VOLUME)

So what can we do? How can you objectively test your new ebay battery and immediately know you got ripped off? Well my friend you put it on a gram scale. Let me show you how this works using the two aforementioned captivate batteries(# 1.. 1500 and #2. 1800 mAh) , the Samsung oem note battery, and a Hyperion aftermarket battery (#3. 2500 and # 4.. 2600 mAh).

Results

#1. 30g
#2. 36g

There is a six gram difference between the lower and 300 mAh higher capacity Samsung batteries, a finding consistent with expectations. The slight increase in the volume of the #2 battery also indicates that the energy density for both of them is much the same... Now on to the S-note batteries!

#3. 50g
#4. 40g

The Samsung battery weighs a full ten grams more than its higher rated Hyperion replacement. Its lighter weight simply does not pack the mass to back up its big claims... It comes as no surprise that few long term users of the Hyperion are claiming the better than stock battery results they should experience, given manufacturer claims...

CONCLUSIONS

You can objectively test inflated power claims by aggressive aftermarket battery manufacturers.

CONTRIBUTE

Use a simple gram scale to help quantify the potential of battery claims. If you really want to nail it down use a vacuum packer seal the battery and measure its volume through displacement..Bonus, save the results and your kid has his/her next science fair project!

POST YOUR RESULTS

If we share our respective findings here, we can help each other make better informed choices. Xda really is great.


YOUR MOTHER

I am sure she loves you very much!

Sent from my SAMSUNG-SGH-I717 using xda premium

The way to properly test the battery is to do a factory reset so no custom apps are installed and then do the following:


1. Power down the phone and allow the battery to fully charge with the phone OFF. Then boot the phone keeping the power plugged in.
2. Turn all the radios on
3. Turn the screen brightness to max
4. Install an app that logs battery levels (I use battery monitor by 3C)
5. Loop a video until the battery dies (unplug the power AFTER you start playing the video)
5a. An alternate method is to loop a benchmark test until the battery dies

This is how the pros do it anyway...

Lw thanks for your response... The testing process you outlined is indeed an excellent procedure.

The only problem it presents is that few, besides the pros and yourself, seem to be willing to take the time needed to test every battery they run across.

I was able to test 4 batteries in less time than it would take to setup your phone to implement the test you've outlined...

A truly professional approach to the battery capacity was demonstrated in a captivate thread. The posters built a test to charge and drain every battery through multiple cycles. The details that were posted provided details far in excess of anything your proposed testing procedure is able to offer.

The captivate battery thread included plans for his battery testing rig, if you are interested and have the time I could probably find the link for you... I would be interested in your shared results.

The advantage my procedure offers is that it does not require modification of phone followed by an extended four hour testing sequence...

My procedure is definitely not for the pros with lots and lots of time, it took me four minutes to test four batteries... That's 1minute per battery...

Sent from my SAMSUNG-SGH-I717 using xda premium