RC India

Hello Rc people  :salute:

can u plz tell me which battery to choose for my motor ?

Motor Specifications :

    Power(W)            : 260
    Wire Winds           : 09
    Resistance(mΩ)   : 72
    Idle Current(A)    : 1.5
    ESC(A)                  : 20 A required minimum
   


ESC Specifications :

    Size                           : 57mm x 25mm x 8mm
    BEC                           : 5V/3A
    Continuous Current  : 35A
    Max Current              : 45A/12s  ( burst value )
    Weight                      : 35 gms approx


can u plz suggest me suitable battery :)
I am new with RC Planes

hi kinnu

it depends on the flight time you desire and also the aircraft itself if you could post the details, pictures of aircraft and possibly links of the above mentioned motor and esc everyone here might be able to better help you


Subbu

bro still to make plane i was ordering all the required electronics

i think that you are referring to this motor http://www.ebay.in/itm/Brushless-Motor-C-2826-KV-1900-35-Amps-ESC-/160795721186 (http://www.ebay.in/itm/Brushless-Motor-C-2826-KV-1900-35-Amps-ESC-/160795721186)

i guess a slowfly plane of about 500-650gms with a 1300mah 3s lipo battery should give you about 5 - 8 mins or more flight time

you can get more flight time with a glider


Subbu

http://www.rcbazaar.com/products/1256-kingmax-2200mah-74v-35c.aspx

or

http://www.rcbazaar.com/products/1253-kingmax1500mah-25c-74v.aspx

or broo plzz provide me full specification of battery with buying link :p

and also  some batteries are 7.4v and 11.1v

which to select ? :P

hi i was talking of the 11.1v 3c 1500mah battery here is the link

http://www.hobbyking.com/hobbyking/store/__9273__Turnigy_1500mAh_3S_20C_Lipo_Pack.html (http://www.hobbyking.com/hobbyking/store/__9273__Turnigy_1500mAh_3S_20C_Lipo_Pack.html)


Subbu

if it is 260 watt, 20A should not be declaired as minimum.
As, Max current for motor = (260/(3x3.7) = 23A
35A ESC is a good choice.
And the battery should deliver 35A safely.
So, 1000mAh for 35C
1400mAH for 25C
2300mAH for 15C
                                  ---(Battery max disch. current = battery AH Value x C Capacity)
will be matched cell. For higher C Capacity, you can go lower mAH Capacity too.
It will reduce weight and simultaneously flight time too.

I suggest, go for at least 2200mAH, 3S1P, 25C battery pack.

Thanks

bro i checked all batteries :)

in some batteries there is 4 pin socket and on reciver 3 point socket is fitted ?

4 pin socket on the LiPo battery means its a 11.1 v (each Lipo is 3.7 v so 3.7 *3 = 11.1v). One pin is negative (black) and the other three are positives of each cell. This type of of the connector on the LiPo is called a  JST-XH and is used for balanced charging. The battery will also have two thicker wires (black and red) coming out. These two wires are for the battery supply to your electronics.

3 pins on the Reciever are for Positive, Negative and Signal. They have nothing to do with the 3pin/4pin thing on the Lipo. These pins instead are connected to the IDC (like those on the servos) on the ESC (Red Black and White wires typically), and the two thick wires on the ESC (Red and Black), Plug into the thick red and black wires from the battery (in the correct polarity). Google can give you complete circuit diagrams

Hope that helps.

PS: You will also need a decent balanced charger for charging the lipos.

thanks bro  :hatsoff:

now got it  :)