Ngamakhulu ezigidi zeefowuni eziphathwayo kwihlabathi jikelele, ukufikelela kukhuseleko kufuna izinga lokusilela elingaphantsi kwesinye kwikhulu lezigidi. Nangona kunjalo, izinga lokungaphumeleli kweebhodi zesekethe liphezulu kakhulu kunesinye kwikhulu lezigidi. Ke ngoko, uyilo lwenkqubo yebhetri kufuneka lubandakanye ubuncinci imigca emibini yokhuselo. Impazamo yoyilo eqhelekileyo kukutshaja ngokuthe ngqo ipakethi yebhetri ngeadaptha. Oku kubeka uxanduva lonke lokukhusela umrhumo ogqithisiweyo kwibhodi yokukhusela kwipakethi yebhetri. Nangona izinga lokungaphumeleli kwebhodi yokukhusela lisezantsi, nakwisinye kwisigidi, uqhushumbo lusenzeka mihla le kwihlabathi jikelele. Ukuba inkqubo yebhetri ibonelela ngemigca emibini yokhuselo ngokuchasene nentlawulo egqithisileyo, ngaphezulu{6}}ukukhutshwa, kunye ne-overcurrent, kunye nokhuselo ngalunye lunenqanaba lokungaphumeleli kwesinye kwishumi lamawaka, imigca emibini yokhuselo inokunciphisa izinga lokungaphumeleli ukuya kwesinye kwizigidi ezilikhulu.
Umsebenzi wokupakisha ibhetri: Umlinganiselo wangoku. Ukuthatha inkqubo yebhetri yefowuni ephathwayo njengomzekelo, inkqubo yokukhusela i-overcharge isebenzisa i-voltage ephumayo yetshaja ejikeleze i-4.2V ukufezekisa umaleko wokuqala wokukhusela. Ngale ndlela, nokuba ibhodi yokukhusela kwipakethi yebhetri ayiphumelelanga, ibhetri ayiyi kuhlawuliswa kakhulu kwaye ibe yingozi. Uluhlu lwesibini lokukhusela ngumsebenzi wokukhusela umrhumo ogqithisiweyo kwibhodi yokukhusela, ngokuqhelekileyo ibekwe kwi-4.3V. Oku kuthetha ukuba akukho mfuneko yokuba ibhodi yokhuseleko iwucime umsinga wokutshaja; isebenza kuphela xa umbane wetshaja uphezulu ngokungaqhelekanga. Ukukhuselwa kwe-Overcurrent kusingathwa yibhodi yokukhusela kunye ne-limiter yangoku, ukubonelela ngeendlela ezimbini zokukhusela kwiisekethe ezinqamlekileyo kunye zangaphandle. Ekubeni ngaphezulu{8}}ukukhutshwa kwenzeka kuphela ngexesha lokusetyenziswa kwemveliso ye-elektroniki, ibhodi yesekethe yemveliso yombane ibonelela ngendawo yokuqala yokhuseleko, ngelixa ibhodi yokukhusela kwipakethi yebhetri inikezela okwesibini. Xa imveliso ye-elektroniki ibona amandla ombane angaphantsi kwe-3.0V, kufuneka ivale ngokuzenzekelayo. Ukuba lo msebenzi awubandakanyi kuyilo lwemveliso, ibhodi yokukhusela iya kuvala isiphaluka sokukhupha xa i-voltage yehla kwi-2.4V.
