12 V SLA battery Charger
It is a 12 V SLA (Sealed Lead Acid) battery charger circuit ref : http://www.talkingelectronics.com/projects/BatteryCharger-12vSLA/BatteryCharger-12vSLA.html
capacitors
Capacitors store a bit of electrical energy and come in many types and varieties. Capacity is measured in terms of Farads named after the great scientist Michael Faraday. As farad is too large a value for most general applications, microfarads (mfd) and nanofarads (nf) are normally used in hobby and consumer applications. Ceramic, polyester, paper, [...]
