Because only the rich can afford cheap batteries..... A good quality deep cycle lead acid battery will cost between $50 and $200 and, if properly maintained, will give you at least 150 deep discharge cycles.
What is the boiling point of oxygen? a. 100 degrees C c. -57 degrees C b. 8 degrees C d. -183 degrees C.
In 1908 he managed to lower the temperature to less than four degrees above absolute zero, to less than â269 Â°C (4 Kelvin). Only in this exceptionally cold state will helium liquify, the boiling point of helium being at â268.94 Â°C.