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3 octets ajoutés ,  14 septembre 2014 à 14:22
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'''{underline|Contre:}}''' Very heavy, batteries tend to be very large bricks because power density is very low.
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'''{{underline|Contre:}}''' Very heavy, batteries tend to be very large bricks because power density is very low.
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'''{underline|Prix:}}''' A 12V lead acid battery with 7Ah of charge should run about $25.
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'''{{underline|Prix:}}''' A 12V lead acid battery with 7Ah of charge should run about $25.
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'''{underline|Power Density:}}''' 7 Wh/kg.
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'''{{underline|Power Density:}}''' 7 Wh/kg.
       
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