When I purchased my husband's Nokia 6300 cell phone, it came with this Nokia BL-4C Cell Phone Battery. We both love the performance of this battery as it has a long talk time.

It is a Lithium Ion battery and is very durable. Once, when we went out of town, my husband had forgotten to give complete instructions to a colleague that was covering for him at the office. He called him up to give him instructions. His colleague just couldn't get the instructions right so he was forced to repeat himself over and over again because the figures wouldn't come out right. They ended up talking for over an hour as his colleague went over the files in the office.

There was not a single moment that their conversation was cut-off due to battery-related interruption in almost an hour of talking. He was so surprised at the performance of the battery. His cell phone heated a bit but the battery indicator on his cell phone only lost 2 bars. Then there was another call from his boss and they talked for almost 20 minutes. The battery still performed great.

When we reached our destination, there was still a bar left on the battery indicator. It is indeed a good battery.