1 size of project: the shorter the pipe that is to be lined, the more it costs per ft. 2  So 50â² of 3â³ pipe under a house might run $140 per foot, but 3000â² of pipe in a high rise condominium might run $125 per foot.
How to charge a battery. An average car battery has a capacity of around 48 amp hours which means that, fully charged, it delivers 1 amp for 48 hours, 2 amps for 24 hours, 8 amps for 6 hours and so on.f there is a power point handy, the battery can be left in the car, so long as the charge rate is only 3 or 4 amps. However, if the car has an alternator, disconnect the battery. beforehand: otherwise some alternators-generally the older type-can be damaged. If separate. caps are fitted, remove them for ventilation.
To get the number of hours required to charge a Roadster battery pack using a standard 15-amp 110-volt outlet, you multiply 15 by 110, which gives you 1,650. Next, divide 53,000 by 1,650 and you've got the number of hours needed to charge the battery pack: 32.12.t's an easy job, one that shouldn't take a pro more than a couple of hours to do. To figure out how long it would take to charge the Roadster's battery pack using the new outlet, multiply 70 by 220, which gives you 15,400. Divide 53,000 by 15,400 and you've got your number: 3.4 hours.