Search found 31 matches

by Taxman
Mon, 01 Jun 2015, 20:13
Forum: Technical and conversion discussion
Topic: Auxillary circuit help please!
Replies: 6
Views: 1118

Auxillary circuit help please!

Awesome, thanks guys. As usual, the solution to the engineering problem is simple and complex at the same time. I'm really grateful to have feedback, half the reason the project has slowed recently is because it is getting closer to putting my balls on the line (literally) and firing it up. Daunting...
by Taxman
Mon, 25 May 2015, 23:26
Forum: Technical and conversion discussion
Topic: Auxillary circuit help please!
Replies: 6
Views: 1118

Auxillary circuit help please!

Hi guys, It's been ages since I've posted about my motorbike project, I'm sure you understand when real life gets in the way of massive fantasy projects. Anyway, I've gotten back into the bike, and wondering if anyone can help me with my auxillary circuit. I'm wiring in my DC DC converter at the mom...
by Taxman
Mon, 26 May 2014, 02:11
Forum: Electric motors and controllers
Topic: Could anyone help diagnose my soliton's issue?
Replies: 41
Views: 5354

Could anyone help diagnose my soliton's issue?

Hey Vortex, I'd be keen to see the guts of the thing, too. The update on my situation is - they relented after I threatened to whine about them on the internet, so they are covering the cost of repair, I have to pay for shipping. So it's on a plane now. It's good we've got this discussion on the for...
by Taxman
Fri, 16 May 2014, 23:57
Forum: Electric motors and controllers
Topic: Could anyone help diagnose my soliton's issue?
Replies: 41
Views: 5354

Could anyone help diagnose my soliton's issue?

Thanks guys, My settings are all good, I tried changing the low voltage cutoffs and everything, tried turning off all the inputs and outputs, reset to factory settings, etc. Since then I have been back and forth with evnetics, they are refusing to cover any cost of the repair. It's crazy considering...
by Taxman
Tue, 13 May 2014, 01:00
Forum: Electric motors and controllers
Topic: Could anyone help diagnose my soliton's issue?
Replies: 41
Views: 5354

Could anyone help diagnose my soliton's issue?

Yeah, that makes sense. I was wondering how something could get fried from insufficient voltage. The 12v wire does look a little thin, I think I'll run an ignition relay to connect a chunky line straight from the 12v battery to the controller on starting. A the moment it's coming through the dash so...
by Taxman
Mon, 12 May 2014, 23:17
Forum: Electric motors and controllers
Topic: Could anyone help diagnose my soliton's issue?
Replies: 41
Views: 5354

Could anyone help diagnose my soliton's issue?

Hmm, the pack is sitting at 149V though. They got me to check all the cells,too, they are all sitting at 3.3v, tho I don't have a load tester.
by Taxman
Mon, 12 May 2014, 23:03
Forum: Electric motors and controllers
Topic: Could anyone help diagnose my soliton's issue?
Replies: 41
Views: 5354

Could anyone help diagnose my soliton's issue?

The old pack was 156v, 13 x 75 Ah optima yellow tops. The new pack is 144v, 45 x 160Ah Thunderskys. Do you reckon the lower voltage would affect the 12v system? I have upgraded the 12v lead acid battery and the DC DC convertor, so it should have a stronger 12v input now. But maybe the damage was don...
by Taxman
Mon, 12 May 2014, 22:53
Forum: Electric motors and controllers
Topic: Could anyone help diagnose my soliton's issue?
Replies: 41
Views: 5354

Could anyone help diagnose my soliton's issue?

So I ended up contacting support at evnetics, and they came back with this- Sam, You should try running the logger program to see what the precise error is, but it sounds like the precharge circuit inside the controller has been damaged from repeated starts with the 12V supply being too low. If you ...
by Taxman
Fri, 09 May 2014, 22:43
Forum: Batteries, charging, management and monitoring
Topic: Piggy backing a voltage alarm with a bms?
Replies: 2
Views: 523

Piggy backing a voltage alarm with a bms?

Cool thanks Johny, Yeah, I might go for 4 of these guys if I can find one with a lower alarm voltage setting http://www.ebay.com.au/itm/10x2in1-RC-Lipo-Battery-Low-Voltage-Tester-Meter-1S-8S-Buzzer-Alarm-Indicator-5O/181402088654?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222003%26algo%3DSIC.FIT...
by Taxman
Fri, 09 May 2014, 01:31
Forum: Batteries, charging, management and monitoring
Topic: Piggy backing a voltage alarm with a bms?
Replies: 2
Views: 523

Piggy backing a voltage alarm with a bms?

Hi guys I'm working on the battery pack for my motorbike conversion, I've got 64 x a123 pouch cells, 2parallel, 32 series, for a 40Ah, 100v pack. I've got 2 x 16cell BMS modules that are just simple shunt modules like this http://www.ebay.com.au/itm/LiFe-BMS-battery-management-system-8series-24v-pac...
by Taxman
Tue, 25 Mar 2014, 00:08
Forum: Electric motors and controllers
Topic: Could anyone help diagnose my soliton's issue?
Replies: 41
Views: 5354

Could anyone help diagnose my soliton's issue?

Hey guys, So I have upgraded my little datto ute to a lithium pack, but when I try to fire it up I get a error message, saying it's not getting a high enough voltage to close the contactors. When it was running the lead acid batteries,it would do it sometimes, but I just had to turn it off and on ag...
by Taxman
Fri, 29 Nov 2013, 14:51
Forum: Technical and conversion discussion
Topic: Contactor orientation
Replies: 40
Views: 6448

Contactor orientation

Awesome info guys, I've been looking for circuit examples, and some have the 12v loop that fires up the main contactor going through the throttle microswitch. So that means that the contactor is opening every time you take your hand off the throttle. Do I want the contactor to be opening and closing...
by Taxman
Fri, 29 Nov 2013, 02:09
Forum: Technical and conversion discussion
Topic: Contactor orientation
Replies: 40
Views: 6448

Contactor orientation

Awesome, thanks!
by Taxman
Fri, 29 Nov 2013, 00:47
Forum: Technical and conversion discussion
Topic: Contactor orientation
Replies: 40
Views: 6448

Contactor orientation

Hey guys, So I'm wading through the mind swamp that is the circuit for my motorbike conversion. I've just noticed that my main contactor has a positive mark on one terminal. It'll be on the positive line, so does that mean I need to connect the battery +ve to the blank side of the contactor, then th...
by Taxman
Fri, 01 Nov 2013, 22:05
Forum: Batteries, charging, management and monitoring
Topic: For sale - 2 x Optima d31T
Replies: 0
Views: 317

For sale - 2 x Optima d31T

Hi, I'm upgrading to lithium, so I've got a few bits to get rid of. I've sold most of the batteries, I've just got 2 Optima yellow top d31t left. One is from the original pack, so it's seen around 200-250 cycles, I've been selling those for 50 bucks. The other is almost new. I got it to replace a dy...
by Taxman
Fri, 01 Nov 2013, 22:01
Forum: Batteries, charging, management and monitoring
Topic: For sale - TC charger
Replies: 0
Views: 303

For sale - TC charger

Hey guys, It wouldn't let me post in the for sale section. I'm upgrading to lithium, so I've got the old 1800W TC Charger. It's set for 156V, it was charging 13 x Optima yellow tops. The charger went in the same time as the pack, so it has only seen 200-250 cycles. Not sure what it's worth, so just ...
by Taxman
Tue, 23 Jul 2013, 20:42
Forum: Parts & Suppliers
Topic: Cancelled - EIG cells available through EV-Power!
Replies: 49
Views: 10949

Cancelled - EIG cells available through EV-Power!

It's just that I'm figuring out how to put together an A123 pack at the moment, and this is a different looking setup.
by Taxman
Tue, 23 Jul 2013, 20:39
Forum: Parts & Suppliers
Topic: Cancelled - EIG cells available through EV-Power!
Replies: 49
Views: 10949

Cancelled - EIG cells available through EV-Power!

Those packs look pro, what is the reason for the copper joiners, rather than flipping the cells and joining the tabs together? Are they different size tabs or something?
by Taxman
Fri, 19 Jul 2013, 13:47
Forum: Members Machines
Topic: Glenn_aircooled Project tricycle
Replies: 40
Views: 3241

Glenn_aircooled Project tricycle

Hey mate, I don't want to derail the exciting first stages of an ev conversion, or an ev addiction, for that matter (I have multiple projects, and can't stop steering normal conversations in an ev direction) BUT I have an electric bicycle for sale with the same sort of specs that I just don't use. I...
by Taxman
Mon, 10 Jun 2013, 15:09
Forum: Batteries, charging, management and monitoring
Topic: Replacing a dead cell
Replies: 15
Views: 1431

Replacing a dead cell

Thanks guys, So I replaced the dead cell, but I don't plan on doing that again - so if another one dies, I'll bypass it. I won't spend any more money on this pack. I was just keen to get the thing on the road, having just bought it. I have a complete nooby question - I'm top balancing the pack now b...
by Taxman
Sun, 02 Jun 2013, 21:10
Forum: Batteries, charging, management and monitoring
Topic: Replacing a dead cell
Replies: 15
Views: 1431

Replacing a dead cell

Okay, so I charged up the suspect cell seperately with an ordinary 12v charger. It had 13v coming off the charge, an hour later it had dropped to 12.3, after a few hundred metres of driving, it's back to 11.5. So I think that is the death knell for that one. So is it worth replacing the cell? Am I g...
by Taxman
Sat, 01 Jun 2013, 18:02
Forum: Batteries, charging, management and monitoring
Topic: Replacing a dead cell
Replies: 15
Views: 1431

Replacing a dead cell

I'm in West End also, by the way.
by Taxman
Sat, 01 Jun 2013, 18:01
Forum: Batteries, charging, management and monitoring
Topic: Replacing a dead cell
Replies: 15
Views: 1431

Replacing a dead cell

Hey Jeff,

There is no BMS, I just tested each cell voltage after taking it round the block, they are all around 12.95v, the bad guy is at 11.5. I assumed there is nothing I could do - do you reckon it's worth just sticking that one on charge with a 12v charger for a while?

Cheers,
Sam
by Taxman
Sat, 01 Jun 2013, 15:47
Forum: Batteries, charging, management and monitoring
Topic: Replacing a dead cell
Replies: 15
Views: 1431

Replacing a dead cell

Hi guys, So I bought the Datsun ute that was advertised on this forum a while ago, trucked it down to Brissie, pretty stoked with the thing. It's got a 144v 75Ah lead acid pack, and one of the cells is pretty much dead. Apparently the pack has only got around 100 cycles on it, but I get the impressi...