Battery

We are going to leave this issue for after we have the power figures and can figure out the current draw. Also considering a hybrid approach with a small li-poly for high draw scenarios (takeoff) and a large li-ion for cruising.

1. Background

All Li-Po and Li-ion cells are ~3.7V.
- Multiple cells are stacked in series to form batteries, indicated by [number of cells]s. A 4s battery contains 4 cells with a overall voltage of 14.8V.
- Batteries typically contain a even number of cells.

	Li-Po	Li-Ion

	Li-Po	Li-Ion
Pros	Stable Wide operating temps (50-100 C°) Inexpensive (~$50)	Higher specific energy (150-200 W-h/kg)
Cons	Lower specific energy (100-150 W-h/kg)	Low operating temps (0-60 C°) Expensive (~$100) Volatile and flammable, specific charging requirements Limited current draw Raw leads