Help on battery choice for newby

[Davidg]

Hi i have 29" delta copy with a kb45 08xl 1600kv and a hydra hv 120 esc runing a prop that has 1626 on it is 42mm 2 balde what batteries should i be using and does the rest of the set up look ok.

[Davidg]

can anyone help

[BHChieftain]

Hi i have 29" delta copy with a kb45 08xl 1600kv and a hydra hv 120 esc runing a prop that has 1626 on it is 42mm 2 balde what batteries should i be using and does the rest of the set up look ok.

Hi,
With your low KV motor, you actually have 2 choices:

1) Run 4S1P with a large prop
2) Run 6S1P with a small prop

I like lower RPMs with a larger prop as I suspect parts will last longer.... but it will run slower.

My Syncron config is simliar to what you have above, except that I have a 240A ESC. I think you'll be fine with 4S on the 120, but maybe not with 6S...

Chief

[Davidg]

thanks i have a hydra hv 120 esc that can take 50 volts what mah anc c rating should i be using

[LiPo Power]

Higher MAH will give you longer run....
C rating from 25 = ok power kick
C rating up to 40 or higher = wicked power kick
You can use any available to you. Higher the C is, better the discharge will be, its like better octane fuel for your car....
I have DF-29 and using 2 x 2S lipo batteries, total of 14.8V, some are 20-25C, some are 30-40C....
Cheers
Robert





thanks i have a hydra hv 120 esc that can take 50 volts what mah anc c rating should i be using

[mappo]

thanks i have a hydra hv 120 esc that can take 50 volts what mah anc c rating should i be using

Hey depending on the run time you want! i will use a 5000mah @20c the least

[Diesel6401]

Get 2 of these each. Open up your options to find the best set-up. That way you can run 4s, 5s or 6s till you find your happy place :smile:


http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=10305
http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=10306

[Dangerous_Toys]

Seems to be a broken link Diesel

[Diesel6401]

Seems to be a broken link Diesel

Yea i hit the wrong button and ran two links together :doh: try again buddy. I think i fixed it.

[Dangerous_Toys]

Yea i hit the wrong button and ran two links together :doh: try again buddy. I think i fixed it.
:rockon2::thumbup1:

[Davidg]

thanks for the help

[Make-a-Wake]

Hi i have 29" delta copy with a kb45 08xl 1600kv and a hydra hv 120 esc runing a prop that has 1626 on it is 42mm 2 balde what batteries should i be using and does the rest of the set up look ok.


Your ESC may go poof...............the 1600kv KBxl pulls amps like you cant imagine. I've personally confirmed this...............twice.............:crying:

[Davidg]

hi make a wake thanks what sort of amps does the kb45 xl pull sould my batteries have higher or lower amp than my esc is rated as i am now confused

[Make-a-Wake]

I'd run 25c / 5000 mah minimum, you may get away with the 120a esc, but it'll be close.............prop it conservatively and it may work.

[Davidg]

I'd run 25c / 5000 mah minimum, you may get away with the 120a esc, but it'll be close.............prop it conservatively and it may work.

thanks for the info what sort of amps does the kb45xl pull

would you be so kind to help me with a few questions below as the more reading i'm doing the more confused i getting

1. does the battery amps need to be higher or lower then you esc is rated.

2. with this setup am i better to run higher volt or amps

i currently have 2 x 4s 35c 3000 mah and 2 x 4s 4000mah 15c batteries

alos would it be better to run in paralell which doubles your amps and run time or series which will double my volts as far as i understand


any help would be appricated

[mschaffer66]

I just ordered a pair of the new EX Hyperions at our shop. 3S, 5000MAH, 45C continuous...bling bling :)