LiPo 7.4 V
250mAh 25C HP – JST Battery

Designed especially with Valken
V-12 motors in mind, a small LiPo 7.4V
packet measuring 10x20x40 mm. The packet features male-ended JTS connector.
High quality of constituent parts and small power drain in V-12 motors allow
this battery to function for a long time on a single charge. Thanks to its
compact size it can be used not only with HP motors, but also as a power source
for electric pistol replicas (AEP). 

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)