LIPO

It is highly recommended to use high capacity cells with C ratings of 25 or higher.

Using LiPo batteries are as simple or more simple than using NiMh cells. As long as manufacture warnings and instructions are followed use of LiPo is very safe.

Charge LiPo's at the rate specified by the manufacture. In most cases this is 1C.
C = capacity. A 5000mAh pack would be charged at 5.0A - 1C. In some cases LiPo’s can be charged at faster rates but this must be specified on the LiPo

All LiPo cells are also given a C rating. This C rating is specific to the maximum rate of discharge the battery can perform safely. The recommended maximum discharge is calculated using the C rating and battery capacity. A 25C 5000mAh battery has a max discharge of 5Ah * 25C = 125A. I would recommend drawing at most 60-80% of this. 60-80A

Long LiPo Life
To ensure long life of cells:
- Try to avoid getting them wet. Although the cell is completely water proof, the balance taps are not and can easily corrode from excessive water. If a pack becomes wet one may cut the shrink wrap off, dry out the taps, and re-shrink the pack.
- Discharge a maximum of 60-80% of the spec'd maximum discharge rate. Running 2P will greatly take the pressure off the cells. This is depandant on C rating and capacity.
- Discharge the cells to the manufacture specified voltage when storing. This is typically around 50% capacity.
- Only discharge a maximum of 70-80% off the cells total capacity. This means bring the boat in well before any voltage cut off kicks in. Or increase the cut off to a higher voltage using ESC programming tools/software
- Avoid temperatures higher then 60C or 140F.