Count the number of brackets used to support the shelf that you're rating. Multiply the number of brackets by the safe load of the bracket to determine the safe load capacity for the entire shelf.What is rated capacity of battery?
The rated capacity of a battery is usually expressed as the product of 20 hours multiplied by the current that a new battery can consistently supply for 20 hours at 68 °F (20 °C), while remaining above a specified terminal voltage per cell.What does the capacity rating Mah mean?
The mAh capacity rating refers to the storage capacity available for a particular battery. A battery with a capacity rating of 1800 mAh could deliver a current of 1800mA for one hour. Higher mAh ratings for the same battery type will generally mean longer run times.