Search found 269 matches

by Paul9
Wed, 25 Sep 2019, 21:26
Forum: General EV Discussion
Topic: How to tell a kilowatt hour from a kelvin week henry
Replies: 25
Views: 1744

Re: How to tell a kilowatt hour from a kelvin week henry

Thanks coulomb when writing my post I suspected I was "out" by a factor of a coupla billion!
by Paul9
Mon, 23 Sep 2019, 13:55
Forum: General EV Discussion
Topic: How to tell a kilowatt hour from a kelvin week henry
Replies: 25
Views: 1744

Re: How to tell a kilowatt hour from a kelvin week henry

I can't be sure but I think, since converting to electric, my car has done 210 xenna nanometres?
by Paul9
Fri, 20 Sep 2019, 14:27
Forum: Batteries, charging, management and monitoring
Topic: Cooling chargers?
Replies: 10
Views: 436

Re: Cooling chargers?

Thanks T1 Terry and Richo

Your suggestions have given me a few things to explore! I think I might sit down, grab a glass of red and think through this a bit more.

Regards
Paul
by Paul9
Fri, 20 Sep 2019, 09:12
Forum: Batteries, charging, management and monitoring
Topic: Cooling chargers?
Replies: 10
Views: 436

Re: Cooling chargers?

Thanks T1 Terry. Good ideas!

I hadn't thought of air filters either so this morning I will be off to my local car spare parts place to see what they have.

Thanks again
Paul
by Paul9
Thu, 19 Sep 2019, 13:58
Forum: Batteries, charging, management and monitoring
Topic: Cooling chargers?
Replies: 10
Views: 436

Re: Cooling chargers?

Thanks guys

jonescg - yeah good ideas and I never even thought about dust getting in.

Richo - I assume the fan in your picture is something like the "Fan Blower, Scircoco Ace 76 Series 109BD12HA2(HC2)[HD2" available from Element14?

Regards
Paul
by Paul9
Wed, 18 Sep 2019, 14:06
Forum: Batteries, charging, management and monitoring
Topic: Cooling chargers?
Replies: 10
Views: 436

Cooling chargers?

G'day people, As you may be aware my battles with chargers seem to be a never ending story! I have used both TC/Elcon chargers and KPES (Kingpan) chargers and have had both types fail at various stages. At present I have a 2kw (or is that kW? - I should have checked Weber's post before I started wri...
by Paul9
Thu, 25 Jul 2019, 16:53
Forum: Batteries, charging, management and monitoring
Topic: LFP SOC vs Pack Voltage
Replies: 12
Views: 744

Re: LFP SOC vs Pack Voltage

Thanks weber, my bad!
by Paul9
Thu, 25 Jul 2019, 13:09
Forum: Batteries, charging, management and monitoring
Topic: LFP SOC vs Pack Voltage
Replies: 12
Views: 744

Re: LFP SOC vs Pack Voltage

Thanks guys much appreciated! I have read your posts, and the references in the posts, and the references in the references in the posts, and obviously far greater minds than mine have grappled with the problem. brendon_m, your diahatsu and my suzuki swift would be similar weights and sizes I guess....
by Paul9
Mon, 22 Jul 2019, 21:48
Forum: Batteries, charging, management and monitoring
Topic: LFP SOC vs Pack Voltage
Replies: 12
Views: 744

Re: LFP SOC vs Pack Voltage

Thanks jonescg. When you say these are no load resting voltages - yes that is correct. When you say "that's pretty close" do you mean the cell voltages as per the table are pretty close to the SOC's I have determined or that the TBS Pro's SOC would be pretty close to the actual SOC? I am trying to d...
by Paul9
Mon, 22 Jul 2019, 21:09
Forum: Batteries, charging, management and monitoring
Topic: LFP SOC vs Pack Voltage
Replies: 12
Views: 744

LFP SOC vs Pack Voltage

My question deals with estimating a battery bank’s State of Charge (SOC) from the voltage (OCV) of that bank. I understand that the difficulty lies with the relationship between SOC and voltage in lithium batteries being very non linear. Going back maybe 8 to 10 years this topic was discussed. At th...
by Paul9
Fri, 28 Jun 2019, 12:21
Forum: Charging Infrastructure
Topic: My first public fast charge
Replies: 12
Views: 900

Re: My first public fast charge

Doesn't sound like "plug and play" coulomb?

Or is it something one would get used to quickly?
by Paul9
Sun, 23 Jun 2019, 09:58
Forum: Renewable Energy and Storage (Non-EV)
Topic: Small wind turbines
Replies: 5
Views: 489

Re: Small wind turbines

I have a 40 acre property 200kms west of Sydney. It is totally off grid. I have had PV panels and a 400watt wind turbine for over 10 years. acmotor's post above very accurately reflects my experience with PV and the turbine. The PV works less well in winter than in summer (no surprise there!) Becaus...
by Paul9
Sun, 16 Jun 2019, 14:01
Forum: Batteries, charging, management and monitoring
Topic: Damn Chargers!
Replies: 20
Views: 1293

Re: Damn Chargers!

I will investigate the TSM chargers with OzDIY. I have met Graeme before.

Maybe the only plus the Zivan might have is that they have a distributor not far from me.

Thanks
Paul
by Paul9
Sat, 15 Jun 2019, 12:32
Forum: Batteries, charging, management and monitoring
Topic: Damn Chargers!
Replies: 20
Views: 1293

Re: Damn Chargers!

Having had a "gutfull" of chargers blowing I am investigating buying a Zivan NG3 charger. The firm I emailed in the USA advised me: "Paul, We have the 240VAC 144V 18A Zivan NG3 chargers in stock. They sell for $1029 USD plus shipping. They can be programmed for 140.4VDC output." I wasn't sure if the...
by Paul9
Thu, 06 Jun 2019, 08:07
Forum: Batteries, charging, management and monitoring
Topic: Damn Chargers!
Replies: 20
Views: 1293

Re: Damn Chargers!

Thanks Richo

I will pass that info on to my brother.

Regards
Paul
by Paul9
Sat, 01 Jun 2019, 09:34
Forum: Batteries, charging, management and monitoring
Topic: Damn Chargers!
Replies: 20
Views: 1293

Re: Damn Chargers!

Thanks Richo

The pictures you were after.
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20190601_111059.jpg (1.31 MiB) Viewed 1115 times
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20190601_111114.jpg (1.44 MiB) Viewed 1115 times
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by Paul9
Fri, 31 May 2019, 09:29
Forum: Batteries, charging, management and monitoring
Topic: Damn Chargers!
Replies: 20
Views: 1293

Re: Damn Chargers!

Sorry guys but it turns out I gave you a "bum steer"! Got my brother over to help with the charger problem. When I hooked up the light, the cleaner and the heater, through the car, NONE of them worked. (Unlike last time when they all worked except the charger). And of course the charger didn't work ...
by Paul9
Sun, 19 May 2019, 09:04
Forum: Batteries, charging, management and monitoring
Topic: Damn Chargers!
Replies: 20
Views: 1293

Re: Damn Chargers!

Thanks very much Richo and Johny, I will get my electrician brother over to help me (or more correctly - me help him) with an "electrical diagnosis" during the week. I will show him your opinions. Of the three things I tested, the 10 watt lamp and the 2400 watt heater had earth pins. The 150watt cle...
by Paul9
Tue, 14 May 2019, 12:46
Forum: Batteries, charging, management and monitoring
Topic: Damn Chargers!
Replies: 20
Views: 1293

Re: Damn Chargers!

Thanks Richo

Just before I go have a bo-peep at the breaker I am confused. While the controller and the breaker are both part of the vehicle's wiring, they are not part of the charging circuit? Or are they? I don't understand.

Sorry - just showing my lack of knowledge!

Thanks
Paul
by Paul9
Tue, 14 May 2019, 12:05
Forum: Batteries, charging, management and monitoring
Topic: Damn Chargers!
Replies: 20
Views: 1293

Damn Chargers!

Hi people, After having two chargers blow simultaneously I bought two new KPES chargers. I installed one and hooked it up to the existing wiring in the car. The existing wiring consists of 3 prong connector under the petrol cap connected to an on-off switch connected to a 15amp circuit breaker conne...
by Paul9
Fri, 19 Apr 2019, 07:14
Forum: Batteries, charging, management and monitoring
Topic: DC - DC Converters?
Replies: 4
Views: 388

Re: DC - DC Converters?

Thanks jonescg

I'll go with 144v

Regards
Paul
by Paul9
Thu, 18 Apr 2019, 19:48
Forum: Batteries, charging, management and monitoring
Topic: DC - DC Converters?
Replies: 4
Views: 388

Re: DC - DC Converters?

Thanks Johny,

My pack is 140v at it's max but normally sits around 133v. So what your saying is that a 144v converter would have no trouble working off a 133v pack?

Thanks
Paul
by Paul9
Thu, 18 Apr 2019, 13:27
Forum: Batteries, charging, management and monitoring
Topic: DC - DC Converters?
Replies: 4
Views: 388

DC - DC Converters?

Hi people, I have been continually adding cells to my EV to the point where my original 96v pack is now 140v (40 cells). Almost all components have been replaced to handle this increased voltage except for the 96v motor and the DC - DC converter. The converter is run in parallel with a solar panel t...
by Paul9
Fri, 25 Jan 2019, 07:18
Forum: Batteries, charging, management and monitoring
Topic: Two chargers blow simultaneously.
Replies: 17
Views: 1123

Re: Two chargers blow simultaneously.

I just checked the evcomponents.com website where both the old TC models and the new HK models of the TC Chargers are both listed as having either the enable option or the CAN interface at the purchaser's discretion. I have always bought the enable option to keep things simple. I did purchase two of...
by Paul9
Thu, 24 Jan 2019, 10:14
Forum: Batteries, charging, management and monitoring
Topic: Two chargers blow simultaneously.
Replies: 17
Views: 1123

Re: Two chargers blow simultaneously.

Thanks for the replies.

Looks like plenty of space and more fans is the go.

Regards
Paul