A turlough is a unique type of seasonal lake found in Irish karst areas which are formed through the annual welling-up of water from the underground water system. Water supplies from wells in karst topography may be unsafe, as the water may have run unimpeded from a sinkhole in a cattle pasture, through a cave and to the well, bypassing the normal filtering that occurs in a porous aquifer.
A battery rated at 180 amp-hours over 6 hours might be rated at 220 AH at the 20-hour rate, and 260 AH at the 48-hour rate. Much of this loss of efficiency is due to higher internal resistance at higher amperage rates-internal resistance is not a constant-kind of like the more you push, the more it pushes back.
If the connected load required 10 amps then the wattage load from the battery would be 12 x 10 = 120 watts. Batteries are rated in amp/hours and not watts. This means that if the battery is rated at 500 amp hours it could produce 1 amp for 500 hours, or in our case 10 amps for 50 hours. 12 v battery could be specified as 14 A-h or 14 ampere-hours, which means 14 amps for 1 hour, or 1.4 amps for 10 hours. In â¦ other words it produces less current for a longer time. A 9 watt bulb takes Â¾ amp in theory, so it should last 14/Â¾ hours on that battery, that is 14 x 4 / 3 hours, 18 hours.