Geo:
????????????????????????? Lithium Ion?????????????????? Lithium Iron Phosphate
fully charged????? 4.2V????????????????????????????? 3.6V
discharged????????? 3.3V????????????????????????????? 3V
The voltages I listed for the fully charged is absolute. The discharged voltage can be pushed further down and still be considered safe, but for longer cycle life, i use the above cut offs.
Voltage discharge curve for both types of secondary lithium cells is not flat like NiCd/NimH
C is the capacity of a battery. Lithium batteries have a rated max discharge rate of xxC. Higher C rated batteries will have? a lower mAhr capacity.
Most high C rated batteries are 1800~2500mAhr, while the lower C rate batteries can be more than 3000mAhr.
In addition to the different internal construction and chemistry for the low vs high C rated, the internal PTC ( Positive Temperature Coef) protector is different.
If the current draw is low ie for the CDV-700, the low xxC batteries with the higher mAhr capacities should be fine.
Once again your mileage may vary. Name brand, Sony, Sanyo Panasonic, Samsung, LG chemical are typically good.Others are dubious.
Old stock Lithium cells are a no-no.? The have a limited shelf life and highly depended upon the state of charge when stored.
P
