Ngenxa yokuba umthamo webhetri, ukumelana kwangaphakathi, i-voltage kunye nezinye ixabiso leparameter azihambelani ngokupheleleyo, lo mahluko ubangela ukuba ibhetri enomthamo omncinci itshajwe kakhulu kwaye ikhutshwe ngokulula ngexesha lokutshaja, kwaye umthamo webhetri omncinci uba mncinci emva kokonakala, okungena kumjikelo ombi. Ukusebenza kwebhetri enye kuchaphazela ngokuthe ngqo iimpawu zokutshaja kunye nokukhupha ibhetri yonke kunye nokunciphisa umthamo webhetri. Umsebenzi we-BMS ongenabhalansi ngumqokeleli wedatha, ongeyiyo inkqubo yolawulo. Umsebenzi wamva nje wokulinganisa osebenzayo we-BMS unokufezekisa umbane oqhubekayo we-5A. Dlulisa ibhetri enye enamandla aphezulu kwibhetri enye enamandla aphantsi, okanye sebenzisa lonke iqela lamandla ukongeza ibhetri enye ephantsi. Ngexesha lenkqubo yokusetyenziswa, amandla asasazwa kwakhona ngekhonkco lokugcina amandla, ukuqinisekisa ukuhambelana kwebhetri kakhulu, ukuphucula imileage yobomi bebhetri kunye nokulibazisa ukuguga kwebhetri.