I-48 V 20 Ibhetri enkulu ye-lead-acid inokuhamba ngokuqhubekayo ngaphezu kweeyure ze-5 emva kokutshaja iiyure ezintandathu. Imotor yesizwe ecocekileyo yobhedu inetorque eyomeleleyo, ukuphatha kakuhle, kwaye ixhotyiswe ngesigqubuthelo sokhuselo. Intsimbi ejiyileyo yemanganese ingqindilili, isiqwenga esinye sifakwe isitampu, isakhiwo somzimba sizinzile, ukuthwala umthwalo womelele, kwaye akukho lula ukuqengqeleka. Isibambo sokusebenza esilula, amaqhosha emisebenzi emininzi, ukusebenza kweqhosha elinye, bhetyebhetye kwaye kulula. Isilinda esisiqwenga esinye, ukutywinwa okuphezulu kokuqina, ukugcinwa lula. Amavili akhethiweyo ahlala ixesha elide kwaye kulula ukugcina indawo yoqhagamshelwano kunye nomhlaba wokuqhuba uzinzo.