On 12/29/2015 02:40 AM, Ing. Marco Gaxiola via EV wrote:
>Wow, only 10volts sag on a +41kw (+350amps times 118volts) of power,
that is pretty amazing!!
Well, the pack is nominally 128 volts, but it was fully charged to 131.4
volts when I started, so say 13-14 volts sag...but yes, I was impressed!
With a 180 Ah battery, 350 amps is only around a 2C rate, which should
be well within their capabilities.
Forgive my ignorance: so each module is at 8volts? (16 in series, total 128V
pack) (each Leaf module is 60ah correct?)
Each leaf module is approximately 60 Ah and contains 4 "cells" in total
(2 series set of 2 parallel 30Ah physical cells....), giving around 8
volts (8.4 volts absolute max) per module. I have 3 of these modules
in parallel for a 180 Ah battery capacity. (And groups of 6 modules in a
"battery" of which I have 8 installed.)
Which BMS and charger are you using?
MiniBMS on each cell with a Thunderstruck motors EVCC acting as the head
unit (and charge controller for dual TSM2500 chargers).
http://minibms.mybigcommerce.com/
http://www.thunderstruck-ev.com/tsm2500-x2-and-charge-controller.html
Do you have a website or similar where to see some pictures of your work?
Congratulations..
Yes, although I haven't posted the final install pictures or videos yet.
You can see the battery construction here to get an idea of what each of
my 8 batteries looks like:
http://www.summet.com/blog/2015/10/31/how-to-build-a-16-volt-battery-module-from-six-nissan-leaf-cells/
Jay
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