PerfectCharge W2000 - Waeco

W2000.book Seite 47 Montag, 5. November 2007 6:00 18PerfectCharge W2000Glossary12 GlossaryThis glossary explains a few terms which are used in this manual.AGM: Absorber Glass Mat refers to batteries where the electrolyteis bound in a fibreglass fleece. This means the battery can beinstalled in any position (even upside-down) without battery acidleaking. Even if there is a leak, no battery acid escapes. Thesebatteries are therefore particularly suitable for boats.Rechargeable battery: A rechargeable battery stores electricalenergy. When a rechargeable battery is charged, electrical energyis converted to chemical energy. If a consumer is connected, thechemical energy is converted back to electrical energy.When batteries are charged and discharged, heat is generated,which means some of the charged energy is lost. The ratio ofuseable energy to the energy expended for charging is called thecharge efficiency.Amp hours [Ah]: Unit for electrical charging.It states how long the charge will provide a particular current:t = Q / It: time in hours (h)Q: charge (capacity) in amp hours (Ah)I: discharge current in amps (A)Battery: A battery is a unit consisting of one or more connectedgalvanic cells which also have external electrical connections.Distilled water: Water without the ions, trace elements orimpurities found in normal tap water. It is used as a solvent and forcleaning in medicine, chemistry and biology.Distilled water is made by distilling (evaporating and thencondensing) normal tap water or filtered water. It is largely free ofsalts, organic substances and micro-organisms. However, it cancontain slight quantities of volatile compounds.47