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« on: September 26, 2009, 03:35:50 PM »
santhosh
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 i am having a e-flite li-po charger , today whn i tried to charge a new thunder power 4s 4450 mah battery  the charger shows BATTERY OVERVOLTAGE, thn i removed the balance connector and it is charging . normally a  4s li po have 5 wires on the balance connector but this one having 6 wires how this?

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« Reply #1 on: September 26, 2009, 07:15:49 PM »
anwar
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Please post a picture.  If it has 6 wires, that indicates a 5s battery.  Did they put the wrong label on it ?
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« Reply #2 on: September 26, 2009, 07:40:37 PM »
anwar
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Forgot to ask, are you able to cleanly count the 4 individual cell packs in it ?
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« Reply #3 on: September 26, 2009, 09:36:00 PM »
santhosh
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yes i can clearly see the 4 cells,it's a Thunder power 4450 mah/14.8v batery model no: TP4450-4SHP, will post the pictures tomorrow

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« Reply #4 on: September 26, 2009, 10:08:08 PM »
anwar
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That model should come with a 4 pin balance connector and 5 wires.  Can't see how or what a 6th wire is doing in the scheme of things   Head Scratching
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« Reply #5 on: September 26, 2009, 10:57:10 PM »
anwar
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If you charge like that, you run the risk of charging with the wrong number of cells detected by the charger, which is potentially dangerous.
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« Reply #6 on: September 27, 2009, 08:00:09 AM »
santhosh
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how to upload picture here?
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« Reply #7 on: September 27, 2009, 08:09:12 AM »
anwar
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Tip #1 in http://www.rcindia.org/rc-india-forum/forum-usage-tips/   Violent   Grin
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« Reply #8 on: September 27, 2009, 08:44:25 AM »
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Santosh ,
Thunder power , flight power batteries have a different type of balance adapter .
What you need is an adapter cable like the one here to use with normal chargers .
http://secure.hobbyzone.com/search/efla229.html
OR
http://cgi.ebay.in/CY-B6-plus-balancer-connector_W0QQitemZ110351437449QQcmdZViewItemQQptZLH_DefaultDomain_203?hash=item19b1754e89&_trksid=p4634.c0.m14.l1262#ht_874wt_939

In fact when we get the batteries we specify to the manufacturer the kind of balance connector that are on the chargers we sell here.
Eg Kong Power  supply an adapter with their batteries to suit our chargers

Sai
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« Reply #9 on: September 27, 2009, 08:55:49 AM »
anwar
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Sai - This adapter only changes the connector type, the number of wires should remain proportional to the number of cells in the pack.  Here, Santhosh has a 4s battery with 6 wires in the balance connector.  Can't see how that is possible.
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« Reply #10 on: September 27, 2009, 09:28:07 AM »
santhosh
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the max file size allowed here is 128 kb but my file size is abt 270 kb aftr resizing with webresizer Bang Head

 i have a balance adaptor cable for connecting this to ths charger

santhosh
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« Reply #11 on: September 27, 2009, 09:42:11 AM »
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Sai - This adapter only changes the connector type, the number of wires should remain proportional to the number of cells in the pack.  Here, Santhosh has a 4s battery with 6 wires in the balance connector.  Can't see how that is possible.

http://media.hyperion.hk/dn/eos/eoslba26/EOSLBA26TP-FP4Smod.gif.

The 6th wire is being understood by the charger as over voltage
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« Reply #12 on: September 27, 2009, 10:47:03 AM »
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the max file size allowed here is 128 kb but my file size is abt 270 kb aftr resizing with webresizer Bang Head

 i have a balance adaptor cable for connecting this to ths charger

santhosh

reduce file size with Web resizer http://www.webresizer.com/

sai
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« Reply #13 on: September 27, 2009, 11:36:51 AM »
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Edwin



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« Reply #14 on: September 27, 2009, 02:56:19 PM »
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 i hav done it using webresizer then the size came to abt 278kb  again resizing makes no differnce


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« Reply #15 on: September 27, 2009, 03:44:57 PM »
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 i measured the voltages  at the 5th and 6th wire ,both showed around 16.2 volts means these wires are connected togeher,thn went for as sai suggested removed the red wire (6th) from the connector  and its workink ok now.wil post the pictures but no idea abt how to resize it. tnx anwar ,sai Thumbs Up


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« Reply #16 on: September 27, 2009, 04:30:20 PM »
anwar
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Webresizer does 2 things.

1) It reduces the size of the image by doing better compression, keeping the same dimensions (x pixels by y pixels).

2) It allows you to change the dimensions and reduce the size of the image further (So for example you can reduce a 2000x1500 image to a 800x600 image).  This is done by setting the appropriate "New Size" option in webresizer.

Guess you need to do the second thing also.

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« Reply #17 on: September 27, 2009, 04:55:09 PM »
anwar
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i measured the voltages  at the 5th and 6th wire ,both showed around 16.2 volts means these wires are connected togeher

They must be trying to reduce the number of types of connectors. 
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