Most other types of existing memory is much larger than Polymer Lithium ion Battery. Other main batteries could be used to the same harder. Lithium-ion batteries with high capacity is due to the material they are made. Lithium Ion batteries do not suffer from a high flow rate and are very handy to store energy efficiently.

One of the problems is that they only a limited time, and this is not always based on how much they are used. You can lose up to 20% of their capacity to store energy every year. This means that even though not as much as they still do not use last indefinitely. The amount of capacity, they lose also depends on the amount of heat that they are in. If it is higher than they lose more than if it is kept low. For products where the air is not much movement, this could be even greater concern. For example, this may be a problem with electrical devices such as cameras.

This can be a problem with the NI-CD Rechargeable Battery is not used, a time, but often can be important when there is a need for an emergency such as a power failure. Since the battery does not store well for a long time, it is possible that when they are needed, they will not use. But what are used and recharged at regular intervals as for portable electric devices, they are very good. But it is not always possible in ability when they are old and it is possible that it is just a reason to work obviously.