Ngamagama alula, isikhululo samandla sangaphandle esiphathwayo sisebenza "njengesikhululo sokutshaja" esihlangeneyo onokuthi usithathe naphi na. Ngaphakathi, igcina ibhanki yebhetri (i-lithium-ion battery pack) apho amandla ombane anokugcinwa khona. Esi "sikhululo sokutshaja" sikwanomphathi okrelekrele (iSistim yoLawulo lweBattery okanye i-BMS) ogcina iso rhoqo kwiibhetri. Umsebenzi wayo kukuqinisekisa ukuba bahlala bondlekile (ukutshaja okwaneleyo), kunqande ukuzintyintya ngokugqithisileyo (ukuthintela ukutshaja okugqithisileyo), kunye nokukhalisa i-alam ukuba balambile (ukuthintela ukukhutshwa okugqithisileyo) okanye ukuba kukho nayiphi na ingozi.
Xa iigajethi zakho ezinjengee-smartphones okanye iitafile zifuna ukutshajwa kwakhona, isiguquli esingaphakathi "kwisikhululo sokutshaja" siyangena. Iguqula amandla ombane aphantsi ukusuka kwibhanki yebhetri ibe yi-5-volt ye-DC amandla afanelekileyo kwezi zixhobo. Kwizixhobo ezifuna amandla ombane aphezulu okanye amandla e-AC, njengeelaptops okanye iifeni ezincinci, kusetyenziswa i-inverter. Esi sixhobo sinokutshintsha "ukuguqula" amandla e-DC kumbane osetyenziswa ngokuqhelekileyo we-AC kwizixhobo zendlu.
Ngamafutshane, nje ukuba uhlawule isikhululo sakho samandla esiphathwayo sangaphandle, iba yinkxaso yakho yamandla ohambayo kwizixhobo ezahlukeneyo zombane. Iluncedo kakhulu kuhambo lwangaphandle, ukukhempisha, okanye iimeko zonxunguphalo, nto leyo eyenza ukuba ibe sisisombululo esisebenzisekayo kakhulu kwiimfuno zamandla eselula.