Despite being new to robotics, I am trying to build a quadruped robot using an arduino and 12 servos. The servo’s recommended operating voltage is 6 - 7.2 volts. I’m planning on using a 6.6 volt, 30c, 1800mah, 2s LiFePo4 battery. But my main question was; Is this battery a good choice for the job and is it safe to connect the battery right up to the servos or do i need a BEC/UBEC or a regulator of some sort? Any help is much appreciated.
link to battery -
hobbyking.com/hobbyking/store/_38273__ZIPPY_Flightmax_1800mAh_2S1P_30C_LiFePo4_Pack_NL_Warehouse.html
link to servo -
hobbyking.com/hobbyking/store/__27556__Turnigy_TGY_S901D_Metal_Gear_Digital_Robot_Servo_13kg_0_14sec_58g.html
also sorry for my poor grammar, english is not my main language
Supposing that the charged voltage of the pack stays within 6-7.2 volts, is the mAh my only problem? Would an identical battery with higher mAh do the job?
Okay thank you that helps a lot! Also, can I wire the battery right to the servos? I have been looking around the internet and I have seen people connecting a UBEC or a BEC in between the battery and the servos. What is a UBEC/BEC and what does it do?
Okay thank you for the help!
The battery has a high discharge rate, but really low capacity (1800mAh), meaning the robot won’t walk for too long. You also need to know the charged voltage of the pack and if it is above 7.2V, you may have issues.
The battery should be able to power the robot for a bit, but a higher capacity pattery will make the robot last longer (but also weigh more). You might consider something around 2500mah to 3500mah.
You can, but normally you’d go through the servo controller…
If you wire them directly, be sure to wire the GND to the servo controller as well.
