Search found 11 matches

by macks
Tue, 04 Feb 2020, 12:01
Forum: Batteries, charging, management and monitoring
Topic: Repurposing hybrid batteries for a full BEV
Replies: 6
Views: 838

Re: Repurposing hybrid batteries for a full BEV

Thanks guys
I was thinking of just using them for testing.
Thanks Matt, unfortunately I'm not local. (Brisbane)
by macks
Tue, 04 Feb 2020, 09:29
Forum: Batteries, charging, management and monitoring
Topic: Repurposing hybrid batteries for a full BEV
Replies: 6
Views: 838

Re: Repurposing hybrid batteries for a full BEV

How much capacity do they have left? How Much $$ ?
by macks
Wed, 29 Jan 2020, 08:51
Forum: Batteries, charging, management and monitoring
Topic: Weber & Coulomb's LyteFyba BMS
Replies: 72
Views: 35635

Re: Weber & Coulomb's LyteFyba BMS

Your use of a low cost optical fibre is interesting. Adds about $30 to total cost? no problem with that. What is the main incentive to use this, the high volt isolation - then noise immunity?
by macks
Wed, 29 Jan 2020, 06:05
Forum: Batteries, charging, management and monitoring
Topic: Low cost BMS
Replies: 443
Views: 72869

Re: Low cost BMS

Thankyou guys for your feedback on your respective systems. My perspective has shifted. I have time to mull over design and will be for waiting actual batteries and how they will be housed before final design. (and yet another open source project - github'ed :) )

Cheers
Andrew
by macks
Tue, 28 Jan 2020, 12:26
Forum: Batteries, charging, management and monitoring
Topic: Weber & Coulomb's LyteFyba BMS
Replies: 72
Views: 35635

Re: Weber & Coulomb's LyteFyba BMS

weber wrote:We're currently about half way through replacing all the cells in the MX-5
Are they going to have a second life as house bank?

Regarding Brisbane weather and 5C discharge.
  • What's you thoughts on battery cooling?
  • Using LTO batteries?
by macks
Tue, 28 Jan 2020, 06:32
Forum: Batteries, charging, management and monitoring
Topic: Weber & Coulomb's LyteFyba BMS
Replies: 72
Views: 35635

Re: Weber & Coulomb's LyteFyba BMS

Very nice guys, how did you go the PCB material compressing and loosening connections? Not an issue?
by macks
Sun, 26 Jan 2020, 16:14
Forum: Batteries, charging, management and monitoring
Topic: Low cost BMS
Replies: 443
Views: 72869

Re: Low cost BMS

Hi Weber. It occurred to me after I posted that it's more of a latency issue. I had thought you broke the strings up for data throughput, thanks for the clarification. I'll look for your posts on your BMS and read up on it.
by macks
Sun, 26 Jan 2020, 06:11
Forum: Batteries, charging, management and monitoring
Topic: Low cost BMS
Replies: 443
Views: 72869

Re: Low cost BMS

Thank 4springs, Because I started from the home storage where I have done a common multidrop buss and when I saw all these EV balancing systems using daisy chain i was concerned about the scan rate. When I do the multidrop network I used opto isolated at 1200 baud. I presume daisy chain buss was sel...
by macks
Fri, 24 Jan 2020, 08:47
Forum: Batteries, charging, management and monitoring
Topic: Low cost BMS
Replies: 443
Views: 72869

Re: Low cost BMS

Hi 4Springs and all,

What resolution are you getting and what scan rate are you achieving?
How did you go with the 200mA bypass current?
by macks
Wed, 22 Jan 2020, 06:52
Forum: Charging Infrastructure
Topic: Fast charging infrastructure - forward-looking overview
Replies: 18
Views: 2328

Re: Fast charging infrastructure - forward-looking overview

Thanks for your reply.

The Chademo protocol, using CAN bus looked neater to me but I can see EA favours CCS2.
oh well, learn another protocol
by macks
Tue, 21 Jan 2020, 07:09
Forum: Charging Infrastructure
Topic: Fast charging infrastructure - forward-looking overview
Replies: 18
Views: 2328

Re: Fast charging infrastructure - forward-looking overview

I'm planning on implementing Chademo on a new conversion. What are the thoughts on availability re: Chademo fast chargers going forward or will CCS eventually be the only option?