Comments on: AVR modified EV charger

By: phorce1

phorce1 — Sun, 02 Aug 2009 18:34:18 +0000

Does anyone have this mirrored? Building an uber UPS and interested in this design. The built in 120V charger on the UPS is designed to top off 10 series connected 12V 5aH batteries so I suspect it will have a problem when I attach 100aH batteries.

By: Philip Baus

Philip Baus — Mon, 28 May 2007 19:26:38 +0000

Gary
Is there any chance you have more information on the charger on the web? (diagrams bill of materials, instructions)? I am currently rebuilding a older EV and the K&W charger is the weak link. This really looks good. Thanks

By: Gary Dion

Gary Dion — Thu, 24 May 2007 18:12:06 +0000

Hi all! Thanks for the interest in the project! I was unaware I’d made it into Hack a Day. Sweet! Now it explains the spike in e-mail I’ve received lately! ;) I normally check this site religiously, but have been super busy lately, so I missed it. I’ve been remiss in responding to e-mail (sorry) – I’ll do better. I have been planing an update to my site and now that I see people actually look at it, I’ll make it a priority! Though, I do have some bad news… I no longer have the EV, so don’t look for me on the streets of Madison. I’d like to build another, time permitting.

By: Madouc

Madouc — Sat, 05 May 2007 01:49:46 +0000

@10
AVR is a type of microcontroller from Atmel. It doesn’t stand for ‘automatic voltage regulator’

By: Justa Noob

Justa Noob — Wed, 02 May 2007 23:57:10 +0000

OK, Will, please clarify the TLA “AVR”. What’s the difference between “Voltage Regulator” and “Automatic Voltage Regulator”? I’m gonna guess that it’s the aspect of managing that battery (group) of batteries, right?

BTW, I for one would like to see where Gary stashed the rest of the batteries, aside from the three that are visible in his under-hood photo.

By: Computer_kid

Computer_kid — Tue, 01 May 2007 22:31:55 +0000

Seeing all of these electric vehicles is inspiring me to do one my self.

By: pragma

pragma — Tue, 01 May 2007 17:04:04 +0000

Is using 16 individual chargers, one per battery, really going to extend his battery life by that much? Seems like overkill to me. Maybe he’s trying to maximize the range for this design (30+ miles according to site)?

By: Alex W

Alex W — Tue, 01 May 2007 09:02:55 +0000

Very cool… Porsche has a c :)

By: austin y.

austin y. — Tue, 01 May 2007 08:31:48 +0000

I was surprised when i read it too, because I live right in the middle of madison, AL! I’m definitely going to keep an eye out for this car.

By: dok

dok — Tue, 01 May 2007 06:30:18 +0000

Oh yeah, anybody know whats being watercooled? i notied the hose but cant figure out where its going.

By: dok

dok — Tue, 01 May 2007 06:24:12 +0000

Wow, after reading around on his site i realized that i only live 2hrs away. I live in Hoover, Al. I might just have to give him a call, make him update his site, then check out his work.