Ibhetri yakhoibhayisekile yombaneyenziwe ngeeseli ezininzi.Iseli nganye ine-voltage ephumayo emiselweyo.Kwiibhetri zeLithium yi-3.6 volts kwiseli nganye.Ayinamsebenzi nokuba ingakanani na iseli.Isakhupha i-3.6 volts.Ezinye iikhemistri zebhetri zineevolthi ezahlukeneyo kwiseli nganye.KwiNickel Cadium okanye kwiNickel Metal Hydride iiseli amandla ombane ayeyi-1.2 volts kwiseli nganye.

Iivolthi zemveliso ezivela kwiseli ziyahluka njengoko ziphuma.Iseli ye-lithium epheleleyo ivelisa kufutshane ne-4.2 volts kwiseli nganye xa i-100% ihlawuliswe.Njengoko iseli ikhupha ngokukhawuleza yehla ukuya kwi-3.6 volts apho iya kuhlala i-80% yomthamo wayo.Xa isondele ekufeni ihla iye kwi-3.4 volts.Ukuba ikhuphela ngaphantsi kwe-3.0 volts imveliso iseli iya konakaliswa kwaye ayinakukwazi ukutshaja kwakhona.

Ukuba unyanzela iseli ukuba ikhuphe ngokuphezulu kakhulu ngoku, i-voltage iya kuncipha.Ukuba ubeka umkhweli onzima kwie-ibhayisekile, iya kubangela ukuba i-motor isebenze nzima kwaye izobe ii-amps eziphezulu.Oku kuya kubangela ukuba amandla ombane ebhetri acuthe ukwenza isikuta ukuba sihambe kancinci.Ukunyuka iinduli kunesiphumo esifanayo.Okukhona uphezulu umthamo weeseli zebhetri, kokukhona iya kuthoba ngaphantsi kwangoku.Iibhetri ezinomthamo ophezulu ziya kukunika i-voltage sag encinci kunye nokusebenza okungcono.