Charging models & the performance of battery packs for electric bicycles

Author

Ke, Weili ; Zhang, Ning

Author_Institution

Inf. Eng. Dept., Jiangsu TV Univ., Nanjing

fYear

2007

fDate

9-12 Dec. 2007

Firstpage

1

Lastpage

4

Abstract

Electric bicycles are becoming very popular in China in the last several years. 99% of all electric bicycles in China use VRLA battery pack as a power source. The cycle life of most VRLA battery packs is much shorter than a single battery´s. In 95% of all failed battery packs, only one battery is dysfunctional. Overcharge and over-discharge are the primary factors for the failures of VRLA battery packs. Current charging method cannot guarantee that the batteries do not over-charge or over-discharge. To obtain good performance of VRLA battery pack of electric bicycles, different charging methods were tested. Among the test results, pulse charging methods results was especially positive.

Keywords

battery powered vehicles; bicycles; lead acid batteries; China; VRLA battery pack; charging model; electric bicycle; valve-regulated lead-acid battery; Batteries; Bicycles; Cities and towns; Fault location; Life testing; Manufacturing; Pulse power systems; Road vehicles; Voltage; Warranties; Batteries; Battery chargers; Charge measurement; Current control; Current measurement; Lead; Life estimation; Road vehicle power systems; Road vehicles; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Engineering Conference, 2007. AUPEC 2007. Australasian Universities

Conference_Location

Perth, WA

Print_ISBN

978-0-646-49488-3

Electronic_ISBN

978-0-646-49499-1

Type

conf

DOI

10.1109/AUPEC.2007.4548031

Filename

4548031