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Author McNutt, P.
Sponsorship USDOE
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword SOLAR ENERGY ♦ BATTERY CHARGERS ♦ PHOTOVOLTAIC CELLS ♦ BATTERY CHARGING ♦ CONTROL EQUIPMENT ♦ TIME DEPENDENCE ♦ COMPARATIVE EVALUATIONS
Abstract An experiment was conducted at the National Renewable Energy Laboratory (NREL) comparing the time required to charge a fully discharged valve-regulated lead-acid battery in a photovoltaic (PV) system using on/off-shunt and pulse-width-modulated (PWM) charge controllers. In one system configuration, an on/off-shunt charge controller was only able to charge the battery to 61{percent} of its rated capacity after 16 days. In a subsequent test, a different on/off-shunt controller in a different PV system configuration readily charged its battery to 100{percent} rated capacity in less than 6 days. It charged its battery as quickly as a couple different PWM charge controllers did in identical systems in a side-by-side comparison. {copyright} {ital 1999 American Institute of Physics.}
ISSN 0094243X
Educational Use Research
Learning Resource Type Article
Publisher Date 1999-03-01
Publisher Department National Renewable Energy Laboratory
Publisher Place United States
Volume Number 462
Issue Number 1
Technical Publication No. CONF-980935-
Organization National Renewable Energy Laboratory


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