No set answer to that, it depends on the size/capacity of the battery and what it's powering.
A 4D battery isa specific physical size. It is 12V and should be 20.75" long,8.75" wide and 10" high. BCI is battery council international.
a car battery last for about 3-5 years
As long as the battery is kept charged then it should last 3-5 years.
a panasonic triple a battery last about 4 hours nonstop.
How long does a Battery 6 Cell battery last
about a year.
8hrs
Forever.
No the battery is built in but should last a long time.
A Sanyo phone battery last just about as long as any other battery. Most batteries are manufactured by just a few different manufacturers, and then rebranded.
If you divide the 5000 mAh by the current used (in mA), you will get the number of hours the battery will last.
About eight hours