Quote:
Originally Posted by DAVES
I'm not sure what you are asking. Nothing is perfect. A typical battery warranty is prorated. People are more familiar with tire warranties that are prorated. Say you have a 5 year prorated tire warranty and their is an issue. Assuming that tire has a replacement for the first year and it fails in the third year. They will measure the remaining tread and give you a credit toward THE LIST PRICE of a new tire. The GOTCHA is that no one pays the inflated list price for a tire. Thus, the real warranty on that tire is far less than the stated five years.
Prices on lithium batteries have dropped significantly from what they used to be. Compared to lead acid they when charged hold far more power with far less weight, they are still more expensive. Lithium batteries have a flat voltage curve compared to lead acid.
A golf cart powered by lead acid batteries will slow down as the batteries drain. Due to the flat voltage curve that does not happen with Lithium batteries but when they reach the end of the charge, the cart should shut off, preventing over draining and damaging the expensive batteries. Perhaps, similar to running a gas golf cart out of gas.
Lithium batteries are commonly used in portable tools. No one reads instructions. They too have or should have a shutoff that prevents fully draining and damaging the expensive batteries. The user will get many more recharge cycles if they do not fully drain the batteries. If you put the tool away without charging it, it can and does deplete itself, just sitting. If, it discharges too far, it will not recharge and you need to buy a new battery.
|
You can not run lithium battery (pack) to zero volts. The are programmed to cut power off long before reaches zero volts. Lithium same as lead acid batteries they loose there charging ability over time and charges, agree it takes longer but they will eventually not charge at all. Some Lithium cells can over heat, go dead, and not take charge which most likely will cause the battery to become useless.