Stranica: 1/1.

Li-Ion punjači i elektronski balans među ćelijama prilikom punjenja

Napisan post: 04 Apr 2019, 12:55
napisao fanzo
BALANS PLOČICA (samo balans):
slika

BALANS PLOČICA SA PUNJAČEM ZAJEDNO:

slika
The balance board is suitable for the li-ion battery pack BMS WHICH without balance function,so as to equalizing charge lithium battery charge function, make the battery pack each series charge at the same time.
Note:The balancing board must need BMS to use together,and the BMS is without balancing function

Parameter:
Balance Voltage for each single cell: 4.2V
Balance current for each single cell :66mA
Size: L25mm*W22mm
Balancer is just a Auxiliary function, The balancing means when the battery charging,each series battery need with the same voltage.when ONE cell voltage get 4.2V ,the other cells not, the first cell voltage will discharge to wait the other cells rising to the same level.

Note:
battery internal resistance differences within 5 milliohm, voltage within 0.03 V voltage, capacity vary within 50 ma
Cut-off Voltage is according to the BMS setting.

Note:the balancer starts balancing when the one cell get 4.2V, The Cut-off Voltage is according to the BMS setting,but the bms cut-off voltage needs more than 4.25V which is much better.
Linkovi za kupovinu na Aliju:

Kod: Označi sve

https://www.aliexpress.com/af/LI%25252dION-BALANCE.html?SearchText=LI%252dION+BALANCE&d=y&initiative_id=SB_20190404024731&origin=n&catId=0&isViewCP=y&jump=afs
Google linkovi:

Kod: Označi sve

https://www.google.com/search?q=li-ion+balance&client=firefox-b-d&source=lnms&tbm=isch&sa=X&ved=0ahUKEwj9h_C_orbhAhUnxIUKHeT5BpYQ_AUIDigB&biw=1920&bih=1036#imgdii=XxmUe5RVmynFHM:&imgrc=bz00hNFI4GBrkM:

Re: Li-Ion punjači i elektronski balans među ćelijama prilikom punjenja

Napisan post: 08 Apr 2019, 17:12
napisao branimir
Jedna stvar koju bi trebalo dodati je bimetalni prekidač do 70 stepeni, nezaobilazni je deo kvalitetnih setova baterija

Kod: Označi sve

https://www.aliexpress.com/item/KSD9700-250V-5A-15-155-Degree-Bimetal-Disc-Temperature-Switch-Normal-Close-Closed-Thermostat-Thermal-Protector/32860802842.html?spm=a2g0v.10010108.1000001.11.2eee16aakk8qWE&ws_ab_test=searchweb0_0%2Csearchweb201602_2_10065_10068_319_10059_10884_317_10887_10696_321_322_10084_453_10083_454_10103_10618_10307_10820_10303_537_536%2Csearchweb201603_51%2CppcSwitch_0&algo_pvid=deb3fdb3-fa88-4bb1-8f58-44014cd7089d&algo_expid=deb3fdb3-fa88-4bb1-8f58-44014cd7089d-0

Re: Li-Ion punjači i elektronski balans među ćelijama prilikom punjenja

Napisan post: 09 Apr 2019, 12:52
napisao fanzo
Da, dobro si primetio... nema temperaturne zaštite, a što je vrlo važno za punjenje baterije.
Ako su baterije ugrejane na oko 60°C ne bi trebalo (smelo) da se pune, ali još uvek mogu da daju energiju potrebnu za neki rad, pa ako bimetalni prekidač isključi na 60°C onda moraš čekati da se ohladi da bi nastavio posao, a to nije baš poželjno... no, dok se baterija puni ovo je ok da stane punjenje dok se baterije ne ohlade.

No, ovde u temi je reč o balansiranom punjenju baterija kako bi imale duži radni vek, jer dosadašnja tehnologija (punjači) je isključivala punjenje svih baterija čim jedna od baterija dostigne 4,2V.
Mana je naravno što će punjenje trajati malo duže, ali se ne moraju kupovati nove baterije još neko vreme.

Re: Li-Ion punjači i elektronski balans među ćelijama prilikom punjenja

Napisan post: 10 Apr 2019, 08:32
napisao branimir