FAQ

Q: How does an ambient temperature influence battery performance?

A: Under low temperature the battery discharge rate will obviously reduce. At -20 °C charge speed will greatly slow down as electrolyte is at its freezing point. Generally charge efficiency is in direct proportion to temperature rising. But the battery materials will be damaged when the temperature rises to 45 °C or higher. That leads to a great shortening of the battery service life.

Q: How long can a rechargeable lithium battery be stored?

A: Battery has a self-discharge ability during store for its electrochemistry construction. Every month a battery self-discharge rate is various depending on the battery design, environment and etc. However, it will leads to an increase of the battery's internal resistance because of the taking place of various processes during the storage. It therefore leads to a reduction in load capability.

Q: What are the reasons for short battery life?

A: • Over charged or over discharged happened which destroyed the battery.
     • Charger or charge circuit does not match to battery system.
     • Battery systems are not consistent with applications.

Q: Why are batteries with short discharge time?

A: • Battery is not fully charged.
     • Excessively big discharge current.
     • Low ambient temperature.

Q: What do possibly results in battery unchargeable?

A: • Charger is failure to output current.
     • Wrong battery connection, or abnormity inner parts or circuit protector.
     • There are 0V cells.
     • External factors such as low temperature lead to extremely low charge rate.

Q: Why do cells or battery packs can not discharge?

A: • Self-discharge in storage.
     • Battery is not fully charged.
     • Excessively low ambient temperature and low discharge efficiency.

Q: Why does 0V or low voltage happen?

A: • Batteries are external short-circuited or overcharged, reverse charged.
     • Internal or slight short circuit for continues overcharging at high rate current.

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