lipo baterijos

[xtomasc]

sveiki, parduodu baterijas visikai naujos, neispakuotos su plombomis. galimas siuntimas pastu. 
1600mAH 7.4v 20C. ak47 tinka . universalios tinka viskam.  LIPO. Vilnius. reikalui esant siunciu pastu su jusu priemoka
tel. 8sesi0022430  

 

foto cia: http://www.skelbiu.lt/19852713.html#

 

kaina: 10e

[ZyWhite]

O ką reiškia tas 20c parametras? 

[Fanatic]

O ką reiškia tas 20c parametras? 

During usage LiPo battery needs to be remembered:

* DO NOT exceed maximum discharge power. For example battery with a 2100 mAh capacity and 15C ratio means that the maximum discharge power can take the value 15x2100 mAh = 31500 mAh = 31,5A.

* DO NOT discharge cells below 3 volts per cell. Under 3 volts chemical reactions start that ruin the cells capability to store a future charge.

* To avoid an excessive cells discharging is advisable to use LiPo alarm. When dangerous limit voltage level per cell will be reached LiPo alarm gives sound.

[darko]

During usage LiPo battery needs to be remembered:

* DO NOT exceed maximum discharge power. For example battery with a 2100 mAh capacity and 15C ratio means that the maximum discharge power can take the value 15x2100 mAh = 31500 mAh = 31,5A.

* DO NOT discharge cells below 3 volts per cell. Under 3 volts chemical reactions start that ruin the cells capability to store a future charge.

* To avoid an excessive cells discharging is advisable to use LiPo alarm. When dangerous limit voltage level per cell will be reached LiPo alarm gives sound.

gerai kad cia visi anglai :D

[Fanatic]

as  tiesiog pats nesuprantu normaliai ka tie "C" reiskia tai nukopinau paaiskinima :D . Nes kaip raso jeigu talpta 2100mAh ir 15C koeficientas reiskia, kad maksimali iskrovimo galia gali but 15C x 2100mAh = 31500mAh = 31.5A. Tai nesuprantu is kur turi atsirast tas 31500 kai yra tik 2100 :D

[Corde]

31.5A nesusijes niekuo su baterija apart to,kad iseina is skaiciavimo pagal duotus duomenis. Cia yra pakroviklio/iskroviklio parametras, kurio negalima virsyti su ta konkrecia, siuo pavyzdiniu atveju 2100mAh 15C baterija.

[Kriptas]

15c reiskia kad max srove yra 15 capacity. Kadangi capacity (talpa) yra 2100 tai galia yra 15x2100=31.5A. Tai reiskia kad akumas maksimaliai gali atiduoti ~31A srovesbe sroves kritimo, kaitimo, sprogimo ir t.t. Zinant galios formule kuri yra P=UI gauname kad sis akumas gali buti tinkamas 31x7.4=~230W (arba VA) galios varikliui arba kitam elektros vartotojui.. pvz galima uzdegti butu 230w lempa (jei itampa susireguliuosi).

Jei galios nepakankama, tai akumas gali jusu variklio nepasukti ant apkrovu - nors bus pilnai pakrautas.

[Corde]

Sumalei skaicius :) Tavo "7.4" paimtas is zmogaus skelbimo, o visi kiti parametrai is duoto google pavyzdzio. Bet skaiciavimo principas teisingas.