Motor on a reasonable budget

[highflier]

Ok to be honest I built a couple of DIY 3s cutoff's Then I built all my packs into 3s1p setups. I then charge 2 or 3 of the packs at a time. When I run my rc truck I just use a Y connector and make 2 of the 3s packs in a single 6s pack. I use a deep cycle battery as the power source. Charging starts off at about 18 Amps each. I.E. 36 amps. It quickly tappers down to 12 amps and then slowly drops from there. Batteries barely get warm.

To answer a earlier question. I do not use a LVC. When the truck slows down I know it is almost time to charge them. Unlike Lipo's you can run these suckers way down. I have run it to a dead stop. But for the most part I stop when it is no longer fast enough to be fun.

I have about $10.00 into each charger. Talk about good deal!

I also lengthen the wire so that charging starts at about 8 amp and then charge using a PC power supply as a source. Of course this is what I do at home when I have plenty of time.

So unhijack. Will the Medusa 36-60 1600 KV be able to offer better power and speed then the wanderer 9xl on 6S1p



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PS. NEVER EVER use this method on LIPO. But I disagree with BrianG it is a awesome method. Brian have you seen the DIY thread on the cutoff in RCgroups. Thats what really made this method work so well. No more monitoring of the charging. Just start it and walk away. When LED goes out Battery is charged. I used my astro watt meter in line to monitor first few charges. If not in use for anything else I still use it but just to see how many AH the charge took.

[tc3_racer_001]

hmm. id love a link to that guide!
so i can use my pc power supply, and use metres of cable to limit like that? id want a 10A charge rate max, but with only 12v, but would it be possible to charge 3s via that, or would it charge it too much, over 4v... id need a cutoff. a link would be great, as i could test it out before buying the chargers!

ryan

[highflier]

Originally Posted by tc3_racer_001

hmm. id love a link to that guide!
so i can use my pc power supply, and use metres of cable to limit like that? id want a 10A charge rate max, but with only 12v, but would it be possible to charge 3s via that, or would it charge it too much, over 4v... id need a cutoff. a link would be great, as i could test it out before buying the chargers!

ryan

I have used computer P/S to charge 3s packs. I use a longer cable to try and hold the starting charge to 8 amps. My supplies are rated to 10 AMPS. I use this cutoff device, With both deepcuycle and P/S as input source. The only difference is I use about 5' less wire when I charge from the Deep cycle.

http://www.rcgroups.com/forums/showt...highlight=A123

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