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Old 08-05-2006, 07:51 AM   #871
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Originally Posted by marvi
3. is balancing absolutely necessary? ive read somewhere that you have to do this at least once every 30 runs. is this 30 complete cycles (fully charge, use until it almost dumps, then charge again)? or 30 charges (full or half charge, full or half use)? what happens to the pack if i dont balance it?
1 charge cycle means using all of the battery's power, but it doesn't have to be in one charge/discharge. For example, if you charge the Lipo and run it down to half of its capacity, then charge it again and do the same thing; that is one cycle.
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Old 08-05-2006, 07:47 PM   #872
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thanks for the info

i posted this in the futaba cdr5000 thread, but hope you guys may also know the answers...

is there a way to charge lipos on this charger? among the available settings (voltage cutoff, capacity, etc... ), can i create a charge profile safe enough for lipos?
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Old 08-06-2006, 12:45 AM   #873
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no, you can not use the cdr-5000 to charge lipo's. Lipo chargers use constant current/constant volt (cc/cv) for charging. In the platinum at 1c charge rate, it needs to be charged at 4.8 amps until the pack reaches 8.4 volts, then the amp rate goes down while the voltage remains the same. You can not safely use a charger in delta peak mode to charge a lipo.

Warning, the following is not suggested. Doing what I am about to say may result in fire. Alright, if you are extremely careful, you can charge on a nimh charger. BUT you must stop the charge cycle when the voltage reaches 8.4 volts on the platinum. Note, the battery will not be fully charged and if you go over 8.4 volts well that is bad. Again this is not suggested, and I would not try it anywhere but a fire control area, and make sure you have an extra $135 for the battery you will need when you ruin your old one.
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Old 08-06-2006, 01:21 AM   #874
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Can someone tell me how you balance lipo battery?
I got ICE charger, can balance be done with this?
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Old 08-06-2006, 04:03 AM   #875
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Dewalt,Bosch,Hilti,etc have/are all going over to Li-Po to power there cordless range of Hammer drills,etc & these hammer drills pull lot`s of amps without to much grief

also if the power tool industry are going over to Li-po /Li-Mn then could this spell the end for c-cells makers
c-cell market is for the power industry with RC racing as a spin off ,they are moving on to Li-Po

food for thought
i`m changing my mind on this
just done some home work & the battery company`s actually do make sub c-cells for RC use ,so this c-cell battery war will keep going on i`m afriad

IE;;put these RC cells in a torch it doesn`t work coz the positive button has been recessed to fit in RC cars

learn some thing every day (i`m willing to learn though others are just so blinkered they are scared of being wrong
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Old 08-06-2006, 05:55 AM   #876
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no, you can not use the cdr-5000 to charge lipo's. ...
thanks again for the info well, better be safe than sorry
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Old 08-11-2006, 09:42 PM   #877
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What other connectors fit besides the Orion plugs? No one has the orion plugs in stock.

Thanks,
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Old 08-11-2006, 09:44 PM   #878
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What other connectors fit besides the Orion plugs? No one has the orion plugs in stock.

Thanks,
http://www2.towerhobbies.com/cgi-bin...4&I=LXTJ25&P=K
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Old 08-11-2006, 09:46 PM   #879
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Thanks,
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Old 08-12-2006, 01:42 AM   #880
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any 4mm plugs will do ,corrally ones are the same
does not have to be orion made !
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Old 08-12-2006, 08:09 AM   #881
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Quote:
Originally Posted by trilerian
no, you can not use the cdr-5000 to charge lipo's. Lipo chargers use constant current/constant volt (cc/cv) for charging. In the platinum at 1c charge rate, it needs to be charged at 4.8 amps until the pack reaches 8.4 volts, then the amp rate goes down while the voltage remains the same. You can not safely use a charger in delta peak mode to charge a lipo.

Warning, the following is not suggested. Doing what I am about to say may result in fire. Alright, if you are extremely careful, you can charge on a nimh charger. BUT you must stop the charge cycle when the voltage reaches 8.4 volts on the platinum. Note, the battery will not be fully charged and if you go over 8.4 volts well that is bad. Again this is not suggested, and I would not try it anywhere but a fire control area, and make sure you have an extra $135 for the battery you will need when you ruin your old one.
You are right in everything what you have said. However AFAIK the CDR-5000 can be adjusted to cut off on a certain voltage. So you can adjust to end the charging process at 8.4V. Using this method you can charge them up to 90%.
NOTE: THIS IS ALL THEORY I'VE NEVER TESTED IT.
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Old 08-20-2006, 02:52 AM   #882
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guys,

I am thinking about balancing my platinum lipo using my avionics charger via the 2mm male pin. should i set the charger to 3.7 or 7.4 volt?
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Old 08-21-2006, 06:38 AM   #883
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3,7 volt
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Old 08-21-2006, 07:59 AM   #884
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Does anyone know where I mite find 90 Degree male pins to contect to the Speedo. In my FT TC4, the upper deck is in the way and I need to either hang the battery out the side, or find a better way to connect....
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Old 08-21-2006, 08:39 AM   #885
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You can solder the ESC leads to the end of the plug at 90 degrees. In fact, many do this anyway whether they need this angle or not.
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