No battery power backup should be attempted without a proper charge controller in place. Batteries are highly energetic and can be extremely dangerous if over charged! An overcharged battery can spark, start fires, and even explode, possibly throwing hazardous chemicals while it does. A charge controller will continuously monitor the charge state of a battery – recognising how “full” it is – and should automatically terminate charging once a battery is full. These 2 devices are often combined into an inverter-charger which can be used as an intermediary between the battery and the closed circuit.Īs each battery has a limited capacity, battery power supplies require special equipment to monitor and control the flow of electricity entering a battery, called a charge controller. To deliver an AC current, the battery will need an external inverter.To receive an AC current the battery will need a transformer or specialised battery charger.To accommodate this, batteries require external devices to convert currents based on usage and need. System Architectureīatteries are finite storage mediums and operate in relatively simple ways.īatteries can only receive and supply DC currents, while most large electrical appliances and power sources use AC currents. Chemical batteries work by charging a solution that retains the charge long enough to be discharged again and distributed later. In technical terms the electricity itself cannot actually be stored, but the relative energy equivalent is stored as potential energy through chemical reaction, and can be transformed into electricity later. A battery system leverages chemical reactions to store electricity for later use, be it electricity from a generator or public.
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