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.
Step 8. Allow the correct amount of time for the battery to charge. Most chargers will take between 4 and 8 hours to charge a battery on trickle.. This is appropriate for a mower battery to prevent damage or explosion.tep 2. Disconnect the positive and negative cables from the battery. The mower battery will either have a cable end, like a car, or most will have a bolt that goes through the cable end and terminal to hold the cable on.