Quote:
Originally Posted by artdutra04
As the voltage of your main robot battery decreases, the amperage of the current traveling to all your electrical loads will increase. (E.g. Watts = Volts x Amps). This increased amperage is usually what blows the fuse on the Spike relay.
Replacing your main robot battery with a fresh one should take care of most of your issues. 
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Not correct. As the voltage of the battery drops, the current will drop also.
Ohm's law: current = voltage/resistance. As voltage decreases, current decreases proportionally. (half the voltage, half the current)
As voltage and current decrease, power (watts) decrease dramatically. Thus half the voltage, which results in half the current, means the power is one fourth of what it was.