اصلا بطور کل سیستم باطری های لیتیوم پلی خیلی فرق داره با باطری های کلاسیک! این روند رو وضیح داده:
LiPoly batteries must be charged carefully.
The basic process is to charge at constant current until each cell reaches 4.2 V. The charger must then switch to a constant voltage mode, and the charging current will gradually reduce while the charger holds the cell voltage at 4.2 V. This will continue until the charge current has dropped to a small percentage of the initial charge rate, at which point the battery is considered fully charged. Some manufacturers specify 2%, others 3%, but other values are also possible. The difference in achieved capacity is minute.
Balance charging simply means that the charger monitors the voltage of each cell in a pack and varies the charge on a per-cell basis so that all cells are brought to the same voltage.
Trickle charging is not recommended for lithium batteries.[SUP]
[15][/SUP] Most manufacturers claim a maximum and minimum voltage of 4.23 and 3.0 volts per cell, respectively. Taking any cell outside these limits can reduce the cell's capacity and ability to deliver full rated current.
Most dedicated lithium polymer chargers use a charge timer for safety; this cuts the charge after a predefined time (typically 90 minutes).
As of the beginning of 2013, charging rates of up to 15C (i.e., 15 times the capacity of the battery, or approximately 4-minute charge times) are possible in the relatively new (circa 2009) breed of
nanowire technology LiPo batteries. This, however, is the exception to the rule, as the more common 1C charge rate still stands as the recommended standard among RC users. It is also important to note that
regardless of the charge rate that a battery can handle, using the lower 1C charge rate will always increase the longevity of any RC LiPo battery.
یعنی یه شارژ خوب و یه مدار تغذیه هوشمند میخواد که این روش رو طی کنه! اکثر دوستان فکر میکنن با باطری نیکلی طرف هستن که هر طوری بخوان میشه شارژش کرد! در ضمن اون قسمت اخر هم بوضوح نوشته که استاندارد شارژ حدود 1C هستش و مثلا برای باطری 3500 میلی امپر ساعت شارژر تا 3500 میلی امپر جریان مشکلی نباید داشته باشه ولی مدار تغذیه معمولا مشکل داره و تا این حد نمیتونه تبدیل و منیج کنه!
