Parallel tizimi, batareya paketlari orasidagi kuchlanish farqiga qarab past kuchlanishli batareya zaryadini zaryadlash katta kuchlanishli batareya paketiga yuklanayotgan batareya zaryadini zaryadlash muammosini hal qilish.
Chunki batareya hujayralarining ichki qarshiligi juda past, shuning uchun zaryadlash oqimi juda yuqori, bu esa batareyani zaryadlash uchun cheklangan oqimni anglatadi