New Products Multi-Function Portable 12V 8000mAh Emergency Car Jump Starter with LED Torch Light Power banks for phones

A: Capacity is the measure of the energy stored in a battery. This is shown in the Ah (Ampere hour) or mAh (milli-Ampere hour), capacity defines the ability of a battery to perform under a specified discharge criteria

2. Q: What is self-discharge?
A: The loss of capacity in a battery due to internal chemical reactions. Self- discharge will occur within all batteries and is influenced by temperature. Self-discharge occurs no matter if the battery is connected to your device or not.

3. Q: Do batteries self discharge when not in use?
A: Yes, all batteries self-discharge. The rate of discharge depends on the type of battery and the storage temperature.

4. Q: What is cut off voltage?
A: The voltage at the end of a useful discharge. Cut off voltage will vary by device. However, the cut  off  voltage for a device specifies the inoperable point for the device utilizing battery power.

5. Q: What is a Cycle?
A: A cycle is considered one discharge and one charge sequence for a rechargeable battery