Battery Test - Test Your Batteries Life


I've just had a thought... This could be extended to be a battery meter calibrater. :)

Run this overnight with your batteries, it takes statistics.
Future battery meters read the stats file to display a battery meter relevant to your batteries! :)
 
With my Energizer 2500mahs.. charged to the brim, meaning i kept unplugging and plugging in the battery charger once it had finished to get as much power as possible to them :)

STATISTICS:
Clock Speed: 200 Mhz
Running Time: 4:08:04
Average FPS: 81.40

Current charge: 10%
Initial internal charge: 894
Current internal charge: 675
 
I do find it funny when I purchased mine how nearly everyone was saying "I get 4-5 hours battery life!". I had that same impression until I actually timed mine manually a few months back and found I was getting 2-3. The results from this app seem to confirm similar experiences for most (seems 3 is about average based on the reportings from that website, and that's at 200mhz).

Perception is very different from reality for most of us I guess :)
 
Is there any way to change the values the battery meter looks at to tell you remaining life? Most rechargables show up as medium charge just after charging. I'd like to set my battery meter to use the rechargable scale. AKA 2.4v as full not 3.0v

-Kensupen
 
I suspected it was bad.... My gp2x stopped working with the batteries still at 43%. Using Energizer 2500mah batteries :(

STATISTICS:
Clock Speed: 200 Mhz
Running Time: 2:20:00
Average FPS: 81.52

Current charge: 43%
Initial internal charge: 825
Current internal charge: 719
 
Finally got around to testing my batteries (Rayovac 2500).

STATISTICS:
Clock Speed: 266 Mhz
Running Time: 3:00:00
Average FPS: 109.33

Current charge: 5%
Initial internal charge: 948
Current internal charge: 669

Note: 3 hours @ 266Mhz

-Kensupen
 
Eolair posted on Nov 3 2006 said:
I suspected it was bad.... My gp2x stopped working with the batteries still at 43%. Using Energizer 2500mah batteries :(

STATISTICS:
Clock Speed: 200 Mhz
Running Time: 2:20:00
Average FPS: 81.52

Current charge: 43%
Initial internal charge: 825
Current internal charge: 719
Click to expand...

Same batteries i got 4hours 8mins with? :eek:

How long have you had the batteries for???
 
Last edited by a moderator:
Topcraft 2100

STATISTICS:
Clock Speed: 200 Mhz
Running Time: 1:20:00
Average FPS: 81.66

Current charge: 80%
Initial internal charge: 959
Current internal charge: 764
--

Why do they fail at 80%?
 
STATISTICS:
Clock Speed: 266 Mhz
Running Time: 2:15:00
Average FPS: 108.88

Current charge: 71%
Initial internal charge: 972
Current internal charge: 752



with Clartech 1800Mah & Clartech fast charger

Haven't tested with my 2700Mah battery set :(

BTW : 972+752 /2 = ~862mA

862x2,25 ~ 1940 mAh

Seems like amperage decrease isn't linear, or my batteries are good ones ;)
 
All using Maha C204W charger:

Powerex (Maha) 2500 set 1:
STATISTICS:
Clock Speed: 200 Mhz
Running Time: 4:05:33
Average FPS: 81.45

Current charge: 0%
Initial internal charge: 966
Current internal charge: 630


Powerex (Maha) 2500 set 2:
STATISTICS:
Clock Speed: 200 Mhz
Running Time: 4:05:00
Average FPS: 81.63

Current charge: 0%
Initial internal charge: 961
Current internal charge: 638


Energizer 2500 set 1:
STATISTICS:
Clock Speed: 200 Mhz
Running Time: 4:22:58
Average FPS: 81.45

Current charge: 0%
Initial internal charge: 968
Current internal charge: 617


Energizer 2500 set 2:
STATISTICS:
Clock Speed: 200 Mhz
Running Time: 3:30:00 :huh:
Average FPS: 81.44

Current charge: 0%
Initial internal charge: 862
Current internal charge: 600


Lenmar 2300 set 1:
STATISTICS:
Clock Speed: 200 Mhz
Running Time: 2:13:17
Average FPS: 81.45

Current charge: 0%
Initial internal charge: 933
Current internal charge: 628


Lenmar 2300 set 2:
STATISTICS:
Clock Speed: 200 Mhz
Running Time: 2:25:00
Average FPS: 81.60

Current charge: 0%
Initial internal charge: 916
Current internal charge: 644
 
Hey, good to see another Maha fan in the audience..

Here's my results using the Maha MH-C401FS charger with some Maha Powerex 2700mah batteries that have already been through a dozen cycles or so, using slow charges:

STATISTICS:
Clock Speed: 200 Mhz
Running Time: 4:37:58
Average FPS: 81.38

Current charge: 10%
Initial internal charge: 938
Current internal charge: 675


I'm guessing they'd actually go a full 4:45 but the 10 minute wait between writes doesn't allow it to show it.
 
STATISTICS:
Clock Speed: 200 Mhz
Running Time: 4:36:29
Average FPS: 81.48

Current charge: 10%
Initial internal charge: 909
Current internal charge: 675

Ansmann 2700 mAh, xpert 800 charger
 
STATISTICS:
Clock Speed: 200 Mhz
Running Time: 0:30:30
Average FPS: 81.42

Current charge: 12%
Initial internal charge: 817
Current internal charge: 678

GP 2100 mAH + Broken GP2X :p
 
thanks I gonna test my batteries.

Man I bought a new fastbattloader, maybe the problem of the batteries are solve (empty in a short in my opion)
And I think that my older batteries Topcraft 2100 mah live longer then my newer 1 strength 28oo mah

We ll see the results muhahahahahah :lol:

EDIT: sjees it is running for 2 hours and with 66% full with the 2100 mah batt....... ?????
 
Ok here are the results of the 2100 mah Topcraft (medion) bought by aldi 1,99 euros (or 2,99 euros) (4x AA in 1 box)

STATISTICS:
Clock Speed: 200 Mhz
Running Time: 3:06:15
Average FPS: 81.73

Current charge: 0%
Initial internal charge: 909
Current internal charge: 621

edit: I ve test 2800 mah strength!!!! results are bad imo (and I was having a shower accu remains at 30% I came back GP2X batteries empty.... btw the fps is awesome hahaha new record?)

STATISTICS:
Clock Speed: 200 Mhz
Running Time: 3:37:17
Average FPS: 81.92

Current charge: 10%
Initial internal charge: 865
Current internal charge: 675
 
OMG These are also topcraft 2100 mah!!!
I knew there was something wrong with my charger!

STATISTICS:
Clock Speed: 200 Mhz
Running Time: 1:20:00
Average FPS: 81.66
Write Rate: 5 min

Current charge: 80% WHY?
Initial internal charge: 959
Current internal charge: 764

---------------------------------------------------------

Hema photo rechargables
Atleast these fail at 0%

STATISTICS:
Clock Speed: 200 Mhz
Running Time: 3:20:00
Average FPS: 81.68

Current charge: 0%
Initial internal charge: 870
Current internal charge: 634
 
Hi Folks just a little advice about testing your batteries, I know everyones keen to get down to testing their new batteries but do your testing after your batteries have been charged and run down at least 5 times as the batteries never get their full charge capacity until after 5 cycles.

Also test your batteries several times to get some average results to ensure your results are not a freak result.

-Be aware that recargeable batteries can go through dips in charge capacity at certain times in their life (how many cycles they have been through). So a much lower result than expected may not always be down to the charger it may be in one of these dips, the dips are pretty pronounced by the look of them so you'll know when you see one!.

Also the testings not about bragging rights so don't try over charge them for your test charge them normally. The ideas for us to find out which rechargable batteries to buy to get the most bang for or buck and life out of our GP2x!

Battery Conditioning (quote from the below site)

See this website to see exactly how much capacity builds up over the first 5 charges!

I've found thisinfo through looking at this testing site

http://www.batteryreview.co.uk/battery_reviews.htm
 
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