hi guys, what do you think is the best battery for 17 several motors, we purchase 6v 1800mAh battery but it seems is cant hold many servos, we parallel two battery but still not enough to supply 8 servo motors what do you think is the best battery for this?
jeff08:
hi guys, what do you think is the best battery for 17 several motors, we purchase 6v 1800mAh battery but it seems is cant hold many servos, we parallel two battery but still not enough to supply 8 servo motors what do you think is the best battery for this?
So many variables:
Will all servos be or capable of turning at the same time?
What kind of mechanical load will the servos be trying to turn?
How large are the servos and what is the manufacturer's stated max current demand?
I always suggest to budget one amp of current consumption per servo. So 17 servos (really using 17 servos?) should work well with a battery rated for 15amps of continuous current draw capacity or better. The mah rating only tells you how long a battery will supply a given load, not necessarily it's source current capacity at any given instance.
Lefty
here is what we are trying to do
You may wan to look at what is sold with multi servo robots, like the below battery pack.
http://www.lynxmotion.com/p-426-60-volt-ni-mh-2800mah-battery-pack.aspx
Hi,
In radio controlled car racing everyone has moved from Nimh to LIPO batteries. They are much lighter, have a higher voltage and can supply far more current than the older nimh and nicad batteries.
This is the battery a lot of us use here in Dubai -
http://www.rcmart.com/rc-batterylipo-yeah-racing-lp0036-lipo-pack-3600mah-p-27252.html
The 20C means that the battery can supply 20*3600 = 72 Amps.
If you want to use LIPO batteries, you will need a LIPO Charger, you can find all the information you need on LIPO batteries and comparisons with alternative batteries on any RC Forum or even youtube.
In fact LIPO batteries coupled with brushless motors are now so powerful that many companies have started selling kits to convert their petrol powered models into brushless Lipo powered electric models.
Duane B
You can buy cheap LiPo's here or on ebay
The problem is the voltage being 3,7V (one cell) or 7,4 V (2 cells) which is either too low or too high for most RC servos,
they are generally rated at 4,8V or 6 V, so you will need some voltage regulation
Erni:
You can buy cheap LiPo's here or on ebayRadio Control Planes, Drones, Cars, FPV, Quadcopters and more - Hobbyking
The problem is the voltage being 3,7V (one cell) or 7,4 V (2 cells) which is either too low or too high for most RC servos,
they are generally rated at 4,8V or 6 V, so you will need some voltage regulationi am not able to run my servo motor that is (Dg servo S07NF STD) with arduino mega i tried it to run with a simple program sweep progbut is winds once and then stops can some one help me in that