In warm weather a single group 31 battery will deliver enough current and maintain tolerable terminal voltages. The Mannheims with a 3KW starter will draw approx 450 amps if the starter terminals are kept at 10V. The same application with a battery that can maintain only 8V while cranking will draw 570amp. This of course causes a viscous circle of more voltage drop across each connection,cable and winding. The higher current increases the voltage drops, which causes the starter to draw even more current. As previously stated.A world of difference what you can get away with at temps above 50F vs. below 50F. Battery available energy drops rapidly as approaching freezing temps. While the engine becomes more difficult to turn. And higher cranking rpms are required to warm the air in a combustion chamber surrounded by colder metal.
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Today's Featured Article - Tractor Hydraulics - The Basics - by Curtis Von Fange. Hydraulics was one of the greatest inventions for helping man compound the work he can do. It’s amazing how a little floor jack can lift tons and tons of weight with just the flick of a handle. What’s even more amazing is that all the principals of hydraulic theory can be wrapped up in such a small package. This same package applies to any hydraulic system from the largest bulldozer to the oldest and smallest tractor. This short series will take a look at the basic layout of a simple hydraul
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