What is Battery lifetime & how it varies?
Rechargeable batteries can be re-charged after they have been discharged. This is done by applying externally supplied electrical current, which causes the chemical changes that occur in use to be reversed. Devices to supply the appropriate current are called chargers or recharges. • Plate Thickness Plate thickness (of the Positive plate) matters because of a factor called “positive grid corrosion”. The positive (+) plate is what gets eaten away gradually over time, so eventually there is nothing left – it all falls to the bottom as sediment. Thicker plates are directly related to longer life.. • Cycles vs. Life A battery “cycle” is one complete discharge and recharge cycle. It is usually considered to be discharging from 100% to 20%, and then back to 100%. Battery life is directly related to how deep the battery is cycled each time. If a battery is discharged to 50% every day, it will last about twice as long as if it is cycled to 80% DOD. If cycled only up to 10% DOD, it will last ab
