LiPo 7.4V 1200 mAh 20C Valken Energy Stick battery pack

LiPo 7.4V 1200 mAh 20C Valken Energy Stick Battery Pack

Lithium-ion polymer (LiPo) batteries are the successors to the well-known lithium-ion (LiIon) Batteries. The fundamental advantage of LiPo is undoubtedly the ratio of capacity to size. The batteries are very small and at the same time have a very high electrical efficiency, so that a suitable battery can be selected for practically any AEG replica. They have no memory effect. They can be charged very frequently without having to be fully discharged. Frequent charging is an advantage for every battery type.

It is important not to use a LiPo pack on less than 3V per cell and not to discharge over 4.2V per cell to load. Another advantage of LiPoThe main advantage of rechargeable batteries is their low self-discharge rate. An unused battery loses about 3-5 % of its energy per month. It is important to take care of an unused battery, as there is a risk that it will discharge below the minimum permissible value (3 V per cell) if it is not used for a longer period of time and unintended chemical reactions can occur, which can lead to a deterioration in the properties of the battery, including permanent damage and, in extreme cases, fire. An unused LiPo-pack should be loaded on average to 70%.

When used properly, a LiPo-pack has an average service life of 500-700 cycles. An important factor is the temperature at which LiPo-batteries can work. In contrast to other batteries LiPo-cells perform well at low temperatures. However, they should be charged at room temperature. To maintain the good condition of LiPo-batteries, they must be equalised during charging with a service connection, which most batteries have. LiPo-packs (a good LiPocharger has an in-built balancer).

Use of Li-Po batteries (PDF)