Rechargeable battery

src: www.fenixlighting.com A rechargeable battery , storage battery , secondary cell , or accumulator is a type of electrical battery which...

Electric-vehicle battery

src: www.businesskorea.co.kr An electric-vehicle battery (EVB) or traction battery is a battery used to power the propulsion of battery el...

Security alarm

src: upload.wikimedia.org A security alarm is a system designed to detect intrusion - unauthorized entry - into a building or other area. S...