across contactor at 100A
High power demand under acceleration could indicate current leaking to the
motor hull and messing up the car chassis ground (?) Brush dust issues have
kept me troubled too many times with weird problems.
-Jukka
to 3. syysk. 2020 klo 13.01 Matt via EV (ev@lists.evdl.org
Hi Brains Trust,
I have a Z1k LV.
My hairball gives me errors 1141 and 1124 when I try to accelerate in any gear
(worst in 5th, and least bad in 1st)
The manual tells me 1141 is contactor high resistance. my DMM measuring the
voltage across the battery and controller inputs to the hairball puts
Both the miniBMS and the cell logs draw current from every cell continuously
It’s only a few mA, but, given enough time it will take the whole battery to
0v, if not charged
Sent from Mail for Windows 10
From: Alan Arrison via EV
Sent: Monday, 17 August 2020 7:57 AM
To: ev@lists.evdl.org
Cc: Al
Hi All,
I have a conversion that used to run a 144v battery (45 x TS 160AH cells).
I have replaced the battery with a 96v nominal battery (32 x CALB CA 130Ah
cells) and the DC-DC (IOTA DLS-55) seems to be low on output voltage, due to
the input voltage being below 130vdc.
I can boost the outpu
er from an abandoned project: 5V @ 240ma,
they have conformal coating so reducing them to 5 cells instead of 6 would be
difficult.
However, I could run a couple diodes in series...
June 2, 2020 10:02 AM, "Matt via EV" wrote:
> What about no charge control, a solar panel whose
What about no charge control, a solar panel whose Voc is 4.5v (so only 5 series
cells) and a schotkey diode to prevent back flow
That would have the effect of limiting max voltage to ~4.2v, but at 4v only
around 20% of Imp would flow (ie charge rate slows right down past 3.6v)
How much power ar
There’s plenty available with export limiting, just about every manufacturer
offers it
They all involve installation of a meter (after the utility meter) to provide
feedback to the GT
https://www.ginverter.com.au/Export-Limitation-Solution.html
There are heaps of installations here in Australi
It depends upon whether you are using a BMS that’s designed for a bicycle or
small loads, that uses mosfets to connect/disconnect the load and charger
Or whether you are using a BMS designed for a larger system (ZEVA, Orion,
EVPower, miniBMS, etc) that uses contactors for switching load and char
I have come across a couple of ZEV scooters in my time
They’re really poorly made, and the performance numbers are fanciful at best
There’s a couple of long running owners threads over at visforvoltage.org
Sent from Mail for Windows 10
From: Paul Compton via EV
Sent: Monday, 30 September 2019 4
