As the article " The Largest Robot Production Base in China"mentioned: In the new era, information and industrialization are constantly merging, and the intelligent equipment industry, represented by robot technology, is booming.Now,I am currently building a line-following robot for a competition this summer. I have figured out everything except the power.
I expect my robot to draw 7.5 amps in the worst case. now, I've selected a 2S LiPo battery for this, as 7.4 volts is enough for my system. However, I am not sure which capacity to select:
300 mAh is more compact, but gives about 2.5 minutes battery life under full load. The course should be covered by my robot in much less than a minute, so from the first glance it is not a problem. However, the battery will need more recharging.
1000 mAh and above give much more battery life, which means more recharging, but they are less compact, which is not particularly good.
I fear that the low-capacity batteries will experience quicker voltage drops, which will decrease performance of the robot. In your poinion, which is the better option regarding the batteries? Will 300 mAH unit be better?
Thank you!