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Old 07-31-2007, 08:35 AM   #1
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Default Couple Questions about Lipo's

I'm getting a new mini boat, and the only packs i can use in it are Lipo(because of the weight). The company recommends a 3 cell pack. And from there I'm lost, with the C, burst, etc. I will be running this motor, a 400 Df outrunner(2600 KV 18 amps continuous) with a Castle Phoenix 25 esc(this combo will make it a 50+mph boat). So i need a lipo pack and charger but dont want to spend an arm and a leg on it. Can anyone help me out. Or does anyone have any ideas on regular cells that are small and light

http://www.castlecreations.com/products/phoenix-25.html

Last edited by '83 chevy; 07-31-2007 at 08:37 AM.
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Old 07-31-2007, 08:54 AM   #2
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If JohnRobHolmes can't help ya, take a look here.
www.fmadirect.com
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Old 07-31-2007, 09:40 AM   #3
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Well I have found out that this is the pack that everyone likes using with those boats


Now I just need a cheap charger, since this will be my only boat with lipo's, I don't need anything fancy.

And if your curious this is what I'm getting here it is
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Old 07-31-2007, 10:45 AM   #4
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those are not bad batteries. i run them in my 1/18 scale stuff. they hold a good charge and have alot of high output. just like any lipo. what price range are you wanting to spend on a charger. and keep in mind these things can blow up if not taken care of.
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Old 07-31-2007, 12:09 PM   #5
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Quote:
Originally Posted by 8500lbs View Post
those are not bad batteries. i run them in my 1/18 scale stuff. they hold a good charge and have alot of high output. just like any lipo. what price range are you wanting to spend on a charger. and keep in mind these things can blow up if not taken care of.
My limit is a little over $50.
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Old 07-31-2007, 07:42 PM   #6
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I would recommend a charger that balances too. Are you ok with waiting 3 hours for a charge, or would you want something faster?
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Old 08-01-2007, 08:00 AM   #7
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Quote:
Originally Posted by johnrobholmes View Post
I would recommend a charger that balances too.
From what I have heard from the boat guys, is that those packs have internal balancers. not sure if they are right, just going by what they said.
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Old 08-01-2007, 08:25 AM   #8
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ahh yes, that would explain the seperate charging plug that is only two wires. What is your budget for a lipo charger? $60, $30?
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Old 08-01-2007, 10:00 AM   #9
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Quote:
Originally Posted by johnrobholmes View Post
ahh yes, that would explain the seperate charging plug that is only two wires. What is your budget for a lipo charger? $60, $30?
I"ll have $50 left after buying all the hardware for the boat, so thats my limit.
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Old 08-01-2007, 03:32 PM   #10
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thats kinda diffucult if you are into othe rc that uses sub c etc.. get an ice charger it charges everything and discharges to!!!
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Old 08-01-2007, 03:54 PM   #11
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I already have a Peak charger i use for my other boat packs, and car packs. Maybe I can sell that and put the money towards a multiuse charger.

Might either go with this
http://www2.towerhobbies.com/cgi-bin...?&I=LXMRH8&P=0

or this
http://holmeshobbies.com/product.php...9&cat=7&page=1

Last edited by '83 chevy; 08-01-2007 at 04:03 PM.
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Old 08-01-2007, 06:04 PM   #12
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I got a triton JR and I love it. Charges everything. And very small.
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Old 08-01-2007, 06:23 PM   #13
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heres a good link.... if you just need a lipo charger there's a couple on the bottom of the page the run in your price range http://cheapbatterypacks.com/main.as...chrg&scat=LIPO


but if i was you i would get the hyperion!! its an awesome charger and very small and compact!!!
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Old 08-01-2007, 06:38 PM   #14
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Any of the chargers mentioned would work well and be easy to use too. I actually have one of the 535 thunder power chargers now and they are pretty awesome for the size. Just three buttons for everything, but they only charge lipo.
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Old 08-01-2007, 08:55 PM   #15
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Quote:
Originally Posted by revoracer99 View Post
thats kinda diffucult if you are into othe rc that uses sub c etc.. get an ice charger it charges everything and discharges to!!!
x2 on the duratrax ice charger. i use it to charge lipo heli packs, li-ion nitro heli rx packs as well as nimh tx packs. best all in one charger IMO, and they can be found on flebay in your price range.
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Old 08-02-2007, 11:28 AM   #16
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Ok then it looks lie i need to get rid of my piranha, and get a Triton.
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Old 08-02-2007, 11:49 AM   #17
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I would recommend against the triton, and go with any of the other 4 button chargers or the triton jr. instead. I found that the scroll wheel played out and got hard to use over time on the triton, making it very hard to dial in the correct parameters. On top of that the wheel is also the select/enter button, so it gets even more use.
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Old 08-02-2007, 01:20 PM   #18
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Quote:
Originally Posted by johnrobholmes View Post
I would recommend against the triton, and go with any of the other 4 button chargers or the triton jr. instead. I found that the scroll wheel played out and got hard to use over time on the triton, making it very hard to dial in the correct parameters. On top of that the wheel is also the select/enter button, so it gets even more use.
the Triton Jr was the one i meant, the same one that Kamikaze uses.
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Old 08-02-2007, 01:29 PM   #19
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15C peak sounds a bit weak for that brushess....
we run 25C peak batt and 35C esc on our helis for basic 3D

but a boat probly doest spike like a heli do a hard - to + pitch or cyclic change

Last edited by STANG KILLA SS; 08-02-2007 at 01:31 PM.
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Old 08-02-2007, 01:38 PM   #20
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The maximum discharge of the pack is 18.75 amps, the motor only draws between 12-15amps depending on the prop. And the Esc can deliver 25 amps.
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