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October 24th, 2018, 07:21 AM  #1 
Member Joined: Feb 2018 From: England Posts: 58 Thanks: 0  Stored Energy Formula
Hi all, Electric vehicle battery pack is rated as having a useable energy capacity of 58.5kWh. How much useable energy is stored by the battery at full charge? Answer in MJ. I believe I have to convert the kwh to Ah calculate accordingly? Thank you for any help. 
October 24th, 2018, 07:35 AM  #2 
Math Team Joined: Jul 2011 From: Texas Posts: 2,816 Thanks: 1460 
kilowatt hours converted to joules ... $58.5 \, kWh = \left(58.5 \times 10^3 \, \dfrac{J}{s} \right) \cdot \left(3.6 \times 10^3 \, s\right) = 210.6 \times 10^6 \, J$ 

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