Cell phones are a must-have in an on-the-go society.

However, staying connected means having strong batteries.

For many users, losing cell phone power is always a pain.

The problem for many is that it is hard to get a straight answer on the best way to keep a cell phone charged.

“I've had a lot of problems with the cell phone battery. I decided at one point that I would replace the phone because it was so unreliable,” said cell phone user Ann Kurland.

Kurland is not the only one wondering what is up with the life of her cell phone battery.

However, getting information on cell phone batteries is not an easy task.

Experts said that is partially because battery chemistry has changed over the past five years and many people still believe old rules apply.

“On the older batteries, the nickel metal hydride, they had more stringent rules about when you could recharge them, you could overcharge them,” said Brenda Maughan of Cellpower.com.

Maughan’s Web site evaluates and sells cell phone batteries.

She said most of today’s cell phones use lithium ion batteries.

It is important to follow directions for charging the first time, but after that, Maughan said, “It really doesn't matter if you, you know, charge it overnight, charge it every day."

Maughan said you really cannot overcharge a lithium ion battery, but it will get overstressed if completely depleted.

"When your battery gets down to a 50 percent charge level, go ahead and recharge it then. That's sort of the happy medium,” said Maughan.

Many users charge their battery while in their car.

However, experts advised to wait until you are traveling at a consistent speed to plug in the charger. Otherwise, a power surge could occur.

Maughan said users should remember that batteries do eventually get used up.

“A typical user will get between 300 and 500 charge cycles,” said Maughan.

Experts also said to make sure the battery and contact terminals are kept clean in order to maximize the performance of the battery.