A flash bracket may be helpful for shooting vertical images. Not necessary if one is using bounce flash, but it still makes the transition from horizontal to vertical quicker and easier. I MUCH prefer the simple brackets that are manufactured by Newton instead of the Stroboframe brackets.
Since weight distribution is an important factor with motor scooters, mopeds and street bikes, the lithium batteries are located in a low position under the driver's seat. This keeps the bike's center of gravity close to the ground which gives the electric moped and rider improved stability and control.
An acid based battery should be stored at full charge. Nickel and Lithium based power cobalt mining canada cells should be stored at half charge or charge. This will help keep them from using capacity over time, and you will see a better performance from them when you do use them.
Specifically however, 18650 lithium-ion batteries are larger both in length and width than standard cells. The numbers, 18650, refer to length and overall circumference. Like most rechargeable cells, their power is rated in milliamp ere-hours (mAh). These mAh designations are often numbered such as 2200, 2400, 2600, 2900, and 3100, which all relate to amount of energy. The higher the number, the more power the battery possesses.
So why is lithium mines ontario gold many times more expensive than silver? Because 99.9 percent of the people in the world think gold is much rarer than silver. But they are wrong - dead wrong - and sooner or later the supply/demand equation will favor silver and narrow the pricing gap between the two metals.
Never discharge your LiPo cells to less than 3.3volts per cell, not the total pack voltage. Most ESC's today will do a soft cut-off at 3.3volts per cell and a hard cut-off at 3.0volts per cell. However some will not give you and warning. Best advice is to fly with a timer and monitor the voltage and adjust your flying time if needs be.
The BMW i3 concept features a purely horizontal configuration, but the i8 concept abandons this arrangement. Instead, the i8 LifeDrive architecture features vertical layering. Keep in mind that the i8 is still a concept until its release in late 2013.