Nidaamka isku midka ah waa in la xalliyo dhibaatada xirmada batteriga-voltage-ka sare ee ku dallaca batteriga yar-yar taas oo ay ugu wacan tahay farqiga danab ee u dhexeeya xirmooyinka batteriga.
Sababtoo ah iska caabbinta gudaha ee unugga baytarigu aad buu u hooseeyaa, markaa dallacadu aad ayuu u sarreeyaa, taas oo u nugul khatarta