One or two years are on average that a battery lasts,sometimes 3 years. It also depends if you have a multi-function watch, and how much you use these added functions.
stick it up your bum and it will start to work again
Batteries should be changed every 6 months. Some can last up to a year.
Putting batteries in series will up the voltage of the entire circuit. Certain things need higher voltage, so you put your batteries in series. Putting batteries in parallel will not up the voltage, but will let the current last longer. Watches would be more of an example for that. You want watch batteries to last long.
Rechargable batteries will not last as long as normal AA's, but, of course, can be recharged, and should last over a year.
On average you should receive 20 playing hours from batteries in your tape player.
Automotive batteries tend to last between 3 and 7 years.Automotive batteries tend to last between 3 and 7 years.
not long
Car batteries last four to five years on average.
The invicta watches can last for how long you take care of them. They are very expensive watches so I'm sure anyone who purchases one them won't mind getting the tuned up.
It all depends of the type of batteries and what you areusing them in.
about an hour
Lithium batteries can last one and-a-half to two times as long as NiMH batteries.