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Firminator is offline Firminator
06-08-2012 , 07:49 AM
Posts: 23 | Thanked: 15 times | Joined on Dec 2011
#1321
Is http://www.avatardeals.com/SCUD-3-7V...le-Phones.html this the same as the Blue Dream ?
 
bsd1101
06-08-2012 , 08:58 AM
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#1322
Blue Dream has 1460 mah, and its label is the other way landscape wise. Could it be a fake SCUD ?
 
zimon is offline zimon
06-08-2012 , 01:44 PM
Posts: 1,305 | Thanked: 621 times | Joined on Feb 2010
#1323
Originally Posted by dr_frost_dk View Post
So to sum up (yes i will shut up now ) using 2 different battery's will actually work, just please keep them kinda close (25% difference in capacity max).
Can you test somehow there is no current going from bigger to smaller battery when they are discharged in parallel?

With some simple electronics that could be tested.
 

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dr_frost_dk is offline dr_frost_dk
06-08-2012 , 02:31 PM
Posts: 1,410 | Thanked: 2,340 times | Joined on Oct 2010 @ Denmark, not far from redkarma
#1324
Originally Posted by zimon View Post
Can you test somehow there is no current going from bigger to smaller battery when they are discharged in parallel?

With some simple electronics that could be tested.
Good idea, i will bring this to test 2, having problems finding the time, hence the late 1. test

But as the combined discharged capacity is very much equal the capacity it should have i don't think there will be many problems here, even when there are so big difference between the battery's, but will be funny to actually see what's going on under discharge.
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misterc is offline misterc
06-09-2012 , 08:18 AM
Posts: 1,442 | Thanked: 874 times | Joined on Aug 2010
#1325
Originally Posted by misterc View Post
modified bq27000.sh so that it displays VDQ when in LOOP mode...

to install
(copy & paste {path} to get it to the right directory)
Code:
find /usr -name i2cget
{path}/i2cget
cp bq27000_vqd2.txt {path}/bq27000_vdq2.sh
chmod 755 {path}/bq27000_vdq2.sh
to run & redirect output...
Code:
cd {path}
bq27000_vdq2.sh >>/media/mmc/bq27000_vdq2.out
bq27000_vdq2.sh 60 >>/media/mmc/bq27000_vdq2.out
will generate a file with content similar to


this way, it is easy to let the battery run empty & have all the values saved in a file automatically
updated bq27000_vdq.sh
now, called without loop, it will 1st display complete date
2012-jun-09-08:08
Code:
echo "$(date +%Y-%b-%d-%H:%M)"
same steps as previous version to setup / use.
Attached Files
File Type: txt bq27200_vdq2.txt (6.7 KB, 19 views)
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daniel_m is offline daniel_m
06-09-2012 , 08:26 AM
Posts: 105 | Thanked: 44 times | Joined on May 2011
#1326
Originally Posted by zimon View Post
Can you test somehow there is no current going from bigger to smaller battery when they are discharged in parallel?

With some simple electronics that could be tested.
Theoretically both batteries should have the exact same voltage under charging and discharging. The bigger one will just draw or push out more power. As long as you stay under the limit of what the weaker of the batteries can take, there is no way that voltage could be different between them. And by "weaker" I am not talking about the smaller capacity battery but about the one that has higher internal resistance.

A "real life" test would be nice though
 

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lall_manish is offline lall_manish
06-22-2012 , 12:39 PM
Posts: 1 | Thanked: 0 times | Joined on Sep 2010
#1327
Whats its means ????


Battery Tests, Homemade 3000mAh XL Battery & Q&A (GOTO POST #1) SCUD is BACK!!!
 
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dr_frost_dk is offline dr_frost_dk
06-22-2012 , 01:38 PM
Posts: 1,410 | Thanked: 2,340 times | Joined on Oct 2010 @ Denmark, not far from redkarma
#1328
Originally Posted by lall_manish View Post
Whats its means ????


Battery Tests, Homemade 3000mAh XL Battery & Q&A (GOTO POST #1) SCUD is BACK!!!
Are you retar'ed?

- Battery Tests
- Homemade 3000mAh XL Battery
- Q&A
- Goto Post #1 for info
- SCUD is Back (this needs to be changed since scud is hard to come by.
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Battery Tests and Battery Mod / Homemade 3000mAh XL Battery - (DONATE)
Custom Brightness & No Light Sensor
N900 DIY Micro Amplifier, turn your N900 into a home stereo
Fix you USB before and after it breaks
Feel free to contact me through PM, Skype or G.Talk
 
Bearserker is offline Bearserker
06-22-2012 , 03:49 PM
Posts: 10 | Thanked: 2 times | Joined on Jun 2012
#1329
Originally Posted by dr_frost_dk View Post
(...)
- SCUD is Back (this needs to be changed since scud is hard to come by).
About SCUD, did finally somebody try the link quoted by Firminator ?
Because SCUD are no more available on aliexpress, it would be a good alternative.
Unfortunately, I've no idea how to test it precisely by myself.
 
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Estel is offline Estel
06-23-2012 , 03:53 PM
Posts: 3,840 | Thanked: 5,612 times | Joined on Mar 2011
#1330
dr_frost_dk, any progress on Your tests with ultrafire 18650 x2 for N900?

/Estel
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