Duracell pile alcaline dated 2005 - 2008. Never used. Now 2014 can these batteries be used safely?
It depends on how often you are using and recharging the battery. An average life span for a remote control plane battery is 6 months to 1 year long.
That depends on what you are doing.
If the battery is not a deep cycle battery, allowing the battery to run down dead multiple times will shorten its life span.
Leaving something on (like headlights) for an extended amount of time without the engine running will shorten the life span of the battery unless the battery is the deep cycle type. Overcharging an automotive battery will also shorten its life span.
How long the battery lasts depends on which kind you got. The average lifespan of such a battery is two years.
The higher the temperature of a battery, the faster the chemical reactions in the battery, and the shorter the battery life span.
Definitely, the life span of the best car battery is about 5 years.
Overdrive requires more power and decreases the life of a battery so avoid overdrive to increase the battery life.
The original brand of battery that the camcorder came with will be the longest lasting.
The best rechargable battery with the longest life span would have to be the new Hybrio rechargable batteries .
You can expect to have 1 to 2 hours of continuous use between charges.
Olympus camera batteries last on average the same as other battery brands. To extend the charge life of your camera battery be sure to not use the LCD panel since it drains the battery.