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Batteries
Published in S. Bobby Rauf, Electrical Engineering for Non-Electrical Engineers, 2021
The deep cycle battery is designed for endurance, longer and deeper discharge cycles without substantial depreciation of life. Since deep cycle batteries are designed to work reliably even when regular charging is not viable, they offer a better charge or energy storage alternative for renewable energy storage applications, as compared to the regular SLI batteries. From construction perspective, the key distinction between the deep cycle battery and the SLI battery is that the former consists of thicker cell or electrode plates. The thicker battery plates resist corrosion during extended charge and discharge cycles.
Batteries and Capacitors as Energy Storage Devices
Published in S. Bobby Rauf, Electrical Engineering Fundamentals, 2020
The deep cycle battery is designed for endurance, longer and deeper discharge cycles without substantial depreciation of life. Since deep cycle batteries are designed to work reliably even when regular charging is not viable, they offer a better charge or energy storage alternative for renewable energy storage applications, as compared to the regular SLI batteries. From construction perspective, the key distinction between the deep cycle battery and the SLI battery is that the former consists of thicker cell or electrode plates. The thicker battery plates resist corrosion during extended charge and discharge cycles.
Standby Power Systems
Published in Michael F. Hordeski, Emergency and Backup Power Sources:, 2020
To minimize damage from sulphation, a wet-cell, deep-cycle battery should be periodically (at least monthly) returned to a full charge. If it has been heavily discharged during the month, a controlled overcharge called equalization or conditioning should be used to soften up hardened sulphates. This is done by charging the battery at 3% to 5% of its rated amp-hour capacity (3 to 5 amps for a 100-Ah battery). The battery voltage should be between 15.0 and 16.2 volts for a 12-volt battery. During this charge the battery must be isolated from all loads. Equalization generally requires several hours.
Development of dynamic thermal input models for simulation of photovoltaic generators
Published in International Journal of Ambient Energy, 2020
S. N. Nnamchi, O.D. Sanya, K. Zaina, V. Gabriel
An outdoor experimental testing facility in Figure 1 is set up under the climatic conditions of Kansanga, Kampala, Uganda. The facility consists of two Mira Cozy PV modules (MC010W-18P), a deep cycle battery (GOLD STAR 12V/7Ah), 5A solar power charge controller, an inverter (S-300W 230V/50Hz AC 12V DC), a digital multi-meter (DT-9205A), a digital multi-meter (UT33 with UT33C thermocouple) and a light bulb (20W DC). The following data were recorded: air temperature, PV glass temperature, base/tedlar temperature, PV output voltage and current, and load voltage and current. Readings were recorded every 15 min from 6:00 GMT to 19:00 GMT. The experiments were conducted for six (6) consecutive times in each month between January to April, and the glass and base_tedlar temperatures were used to validate the simulated result under moving cloud conditions. In addition, a 10-year meteorological data on insolation, air temperature and wind speed for the study location were acquired from meteorological centres (ACCUWEATHER 2018; HOMERENERGY 2018; NASA 2018) ranging from 2007 to 2017.