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.
RE: How long does a car battery charger take to fully charge a battery? My car broke down on me again and weâve been charging the battery on an external charger for a couple of hours now so we can see if it was the battery or my alternator.eport Abuse. Depenind on what type charger you have Shops use commercial chargers Properly charging an automotive battery goes like this. Charge at a rate of 30 amps for 30 minute intervals and recheck. This can take up to 8 hours to fully recharge a battery.