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Ageing evaluation of lead-acid batteries used in off-grid photovoltaic systems

Vitor Torquato Arioli

Maria F. N. C. Rosolem

Thais T. de Sousa

Thiago C. do Nascimento

Cesar S. Vieira

The lead-acid battery is the technology widely used in off-grid PV systems, mainly the automotive and deep cycle types. This paper presents the main degradation phenomena in lead acid batteries used in PV (sulfation, stratification, corrosion, and active mass degradation) laboratory tests that induce the main degradations, and the results of tests on OPzS batteries from two manufacturers in 14 different groups.

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