tag:blogger.com,1999:blog-7683526616307057319.post6926857774830234398..comments2023-04-06T05:49:36.625-07:00Comments on Honda S2000 Electric Vehicle Conversion: Charging issuesBrianhttp://www.blogger.com/profile/11065813696724781338noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-7683526616307057319.post-37997307584768332302009-02-23T14:16:00.000-08:002009-02-23T14:16:00.000-08:00thanks for the update.It is again and again intere...thanks for the update.<BR/>It is again and again interesting what a complex electric system is willing to throw at you.<BR/>Somehow reminds me of the "magic switch" story.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-7683526616307057319.post-68006469467363791622009-02-20T14:30:00.000-08:002009-02-20T14:30:00.000-08:00This BMS doesn't balance, it's more of a monitorin...This BMS doesn't balance, it's more of a monitoring system than management system. It does notify the charger of over temp, over current, under voltage and over voltage.<BR/><BR/>I'll be creating my own cell balancers which will be on each cell so that voltage drop won't be an issue. They will simply shunt the energy when the cell reaches a certain voltage given the other cells a chance to catch up.<BR/><BR/>The charger was originally mounted to the rear battery rack which is attached to the car so grounded. I then placed it in the trunk and tried to make sure nothing could touch it except the carpet in the trunk and the problem was still there.Brianhttps://www.blogger.com/profile/11065813696724781338noreply@blogger.comtag:blogger.com,1999:blog-7683526616307057319.post-42376517044304749892009-02-20T14:11:00.000-08:002009-02-20T14:11:00.000-08:00the BMS does the balancing and switches the charge...the BMS does the balancing and switches the charger on/off with the serial data link? Could it be that the charger is not properly connected to the cars earth when in the trunk? Or not properly isolated? Since it seems to work out of trunk?<BR/><BR/>By the way, in some older post you report on having different voltage run length from the front and rear cells to the BMS. Have you checked them for voltage drop, which could interfere with correct balancing?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-7683526616307057319.post-53686439808063870292009-02-20T13:03:00.000-08:002009-02-20T13:03:00.000-08:00I hope to get this system I already have figured o...I hope to get this system I already have figured out. Can't afford another one at this point.<BR/><BR/>I believe they are discharging evenly, however, since they've never been truely balanced (yet, since I'm still building the balancing circuit) it's hard to say how evenly.Brianhttps://www.blogger.com/profile/11065813696724781338noreply@blogger.comtag:blogger.com,1999:blog-7683526616307057319.post-27933251223484101362009-02-20T12:28:00.000-08:002009-02-20T12:28:00.000-08:00bummer, maybe you'll need some advanced software t...bummer, maybe you'll need some advanced software to analyze each cell for proper charging and proper usage during driving.<BR/><BR/>Are all the cells being discharged equally?Jeff Dingeshttps://www.blogger.com/profile/15247917661485923003noreply@blogger.com