spektrum DX9 Batterier 4000mAh 7.4V

For In order to ensure the safe use of various lithium batteries and master the common sense of using lithium batteries, please read the following text carefully!
Burning: Charging with a non lithium battery charger may cause damage, smoking, and heating of the lithium battery Or burn it! For lithium battery packs, we recommend using a lithium battery balanced charging dedicated charger Charge up!
Damage: Excessive discharge, overcharging, or reverse charging will immediately cause damage to the lithium battery. Charging: The charging current should not exceed half of the battery capacity, and the charging cut-off voltage is 4.20V / 0.05V for a single cell.
Discharge: When using the battery pack for the first time, please use a standard balanced charger for charging. For new batteries, please charge them for the first time
Do not over discharge during use. When using continuously, please pay attention to checking the battery voltage and the total value of the 3-series battery pack
The voltage shall not be lower than 10.5V. The total voltage of the string battery pack shall not be lower than 7.0V, and the voltage of a single cell shall not be lower
Below these rated voltages of 3.5V, the battery will inflate, fail, and eventually be damaged.
Storage: The self discharge rate of lithium batteries is higher than that of nickel hydrogen/nickel barrier batteries, making them prone to excessive discharge. If the product is not used for a long time
When using, please remove the battery and regularly check the battery voltage to maintain the voltage of each individual battery at
Between 3.8V and 3.9V.