LiPo
11.1V 1200 mAh 20C Valken Energy Battery – Stick

Lithium-Ion-Polymer (LiPo) packs are successors to
the known Lithium-Ion (LiIon) packs. The basic
advantage of LiPo is undoubtedly the ratio of
capacity to size. The packs are of very small size whilst maintaining a very
large electric efficiency, which allows for choosing an appropriate pack for
practically every AEG replica. Do not feature memory effect.  Can be charged very frequently, without the
need to be fully discharged. Frequent charging is beneficial for every type of
a battery.

It is crucial to remember not to discharge a LiPo
pack to a level of less than 3V per cell and not to overcharge over 4.2V
per cell. Another advantage of LiPo packs is
a small percentage rate of self-discharge. Unused pack will lose approximately
3-5% of energy per month. It is important to pay attention to an unused pack as
there is a risk that as a result of not being used over a prolonged period of
time it can be discharged beneath the acceptable minimal value (3V per cell)
and inadvertent chemical reactions may occur, which lead to a deterioration of
the pack’s properties including a permanent damage and, in extreme cases, fire.
Unused LiPo pack should be charged to an average of
70%.

Properly used, a LiPo pack has an exploitation period
of on average 500-700 cycles. An important factor is the temperature that LiPo packs can work in. In contrast to other batteries, LiPo cells perform well in low temperatures.  However,
they should be charged in room temperature. In order to maintain the good
condition of LiPo batteries it is required to balance
them during charging with a service connector, which most LiPo
packs have (a good LiPo charger features an in-built
balancer).

Usage of Li-Po Batteries (PDF)