Quote:
Originally Posted by RedDevil
Specifically, NiMH batteries can have hundreds of thousands of charge-discharge subcycles in the 40% to 75% charge range.
It is the end or the range that the most damage occurs, as there are fewer gaps remaining for the free ions to move to so they have to move much further.
Therefore hybrids like the Prius and the second gen Insight try to keep the charge state within that range.
|
That's only for li batteries. Cd and Ni batteries need to be fully depleted before recharging, or memory effect will take place.
Only Lithium batteries, or lithium combination, can not be fully depleted, to prevent dead cells.
In practice, any battery usually has no more than 500 charges cycles (usually less). Lithium for cars seems to be an exception to this, perhaps due to the advances in technology.