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Design and research on active equalizing circuit of VRLA batteries for electric bicycles

Shuqi Li

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Abstract

Passive equalization is generally applied to valve-regulated lead-acid(VRLA) battery packs of Chinese electric bicycles.The passive equalization could reduce battery pack cycle life due to overcharge and overdischarge.Based on a general,low cost,module principle and experiments,a design of active equalizing charge/discharge has bean given in this paper.It has achieved good results of battery equalization in the contrast tests on 48 V-12 Ah VRLA battery packs.

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What this paper is about

Passive equalization is generally applied to valve-regulated lead-acid(VRLA) battery packs of Chinese electric bicycles.The passive equalization could reduce battery pack cycle life due to overcharge and overdischarge.Based on a general,low cost,module principle and experiments,a design of active equalizing charge/discharge has bean given in this paper.It has achieved good results of battery equalization in the contrast tests on 48 V-12 Ah VRLA battery packs.

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Available abstract

Passive equalization is generally applied to valve-regulated lead-acid(VRLA) battery packs of Chinese electric bicycles.The passive equalization could reduce battery pack cycle life due to overcharge and overdischarge.Based on a general,low cost,module principle and experiments,a design of active equalizing charge/discharge has bean given in this paper.It has achieved good results of battery equalization in the contrast tests on 48 V-12 Ah VRLA battery packs.

Key concepts: Overcharge, VRLA battery, Lead–acid battery, Battery (electricity), Equalization (audio), Engineering, Electrical engineering, Automotive engineering

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Design and research on active equalizing circuit of VRLA batteries for electric bicycles — Research Paper | ScholarLens