September 6, 2011
Many of the LEGO sets have motors that run on batteries.
Today we are reading how many volts the batteries show on a multimeter.
Some batteries are not rechargeable and some are.
1.5 V is new. 1.2 V is old and not usable for RCX but ok for motorized machine sets.
How many batteries does it take to make a motor move?
One makes it move slowly.
Two does seem to be twice as fast.
3 make the motor go so fast it is hard to tell the difference in the full 6.
