Hi!

Ah yes I see!
Is the switch exact enough to callibrate it exactly?
I'm a bit sceptic about these switchens...

Did you use any kind of tranceiver in your bot?

I think you used lead-acid batteries (is that the correct word?)?
I'm just trying Lithium Polymaer-Batteries. I bought one for 18€. It has 1200mAh, and is much smaller and lighter than my equivalent lead-acid battery.
The major disadvantage of this types of battery is, that you have to controll them all the time. But if the programm is written once (it is simple), they're fun.

best regards and a happy new year
Tobi