Discharge curves via Maha data

Z

z_Mikl1984

Guest
I found a lot info about different Ni-Mh batteries in this forum.

But really interesting data were done with help of rather expensive specialized equipment connected with PC (for example http://www.maccor.com/model4300.php).



I see a lot of owners Maha MH-C9000 here. But usually everybody just post results of own cells in mAh. :(



Most interesting data are exist in Discharge curve. And you able to receive it with help of your Maha ONLY!

Of course it requires time. But in result you will be able to compare your cells.



What you need?

Excel spreadsheet and Maha ONLY.



I compared 3 LSD AAA Ni-Mh and one non LSD:

GP ReCyko+ GP85AAAHCB-EU4

Sanyo Eneloop HR-4UTG-4BP

Yuasa Enitime Pre-Charged AAACS800

Ansmann ***** Professional 1100 mAh (only 2 test for reference)



First table were done during Discharge stage (160mA or 0.2C) of Break-In

http://forum.ixbt.com/topic.cgi?id=20:27398:3069#3069

567335w.jpg




Second during 800mA Discharge (1C as discribe in IEC 61951-2:2003) after Break-In

http://forum.ixbt.com/topic.cgi?id=20:27398:3109#3109

567336w.jpg




Both graphs are V from t (in minutes)

If you need to receive mAh=t/60*mA*0.91;)



My Excel contains just six columns:

mAh t(min) Enitime Eneloop Recyko+ Ansmann 1100



?fter receiving such graphs you will understand rather well for what purposes:) you should use your cells.



Tests of AAs coming...



If you want share your results - welcome
 
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