Search found 33 matches

by rmlane
Tue, 15 Sep 2015, 19:49
Forum: For Sale/Wanted
Topic: WTB 60-72V battery set, 40-120 AH.
Replies: 0
Views: 251

WTB 60-72V battery set, 40-120 AH.

Item: I need a small battery set for my EV, 60-72 Volts, anywhere between 40 & 120 Amp hours. Peak current required is only ~120 Amps. Nissan Leaf, Chevy Volt or near-new LiFePo4 cells would all be fine. Location: Sydney, Canberra or in-between. Item Condition: New or good condition second hand. Rea...
by rmlane
Mon, 10 Mar 2014, 14:02
Forum: Members Machines
Topic: RMLane's 1912 Baker Electric
Replies: 38
Views: 5587

RMLane's 1912 Baker Electric

Good, sounds like you have things under control. Well done. You did avoid the topic of auxiliary battery though? I don't think I'm going to have anything that needs 12 volts, so I don't think I'll need an aux battery? Unless the BMS itself needs 12 volts? I'm assuming the BMS runs off the pack itse...
by rmlane
Mon, 10 Mar 2014, 00:02
Forum: Members Machines
Topic: RMLane's 1912 Baker Electric
Replies: 38
Views: 5587

RMLane's 1912 Baker Electric

There is a downside to running the lighting directly off battery pack, though perhaps less so with the more solid voltage of lithium compared to lead acid. The lights all change intensity and flicker with traction motor power levels. A DC-DC provides steady regulated power. The LED lights already h...
by rmlane
Thu, 06 Mar 2014, 15:12
Forum: Members Machines
Topic: RMLane's 1912 Baker Electric
Replies: 38
Views: 5587

RMLane's 1912 Baker Electric

I think I might have just removed the need for a DC-DC converter: I found some 60 Volt DC bulbs. There are some T5 base LEDs that will run on 36-130 Volts in various colours. For the headlights, there are some 30-watt incandescent bulbs in miniature reflectors in BA9S and E12 bases. Those would req...
by rmlane
Fri, 28 Feb 2014, 16:07
Forum: Members Machines
Topic: RMLane's 1912 Baker Electric
Replies: 38
Views: 5587

RMLane's 1912 Baker Electric

OK, To get back to the point of the thread, which is to source advice, here's my thoughts on how to fit the car out: 20 x 90AH Prismatic LFP Cells 8 to 12 Amp 60 Volt charger, maybe a Kingpan? BMS: Batrium or ZEVA? Cycle Analyst V2 as a power gauge Optional : Kelly Controller KDS2200E 72 volt, 200/1...
by rmlane
Fri, 28 Feb 2014, 15:56
Forum: Members Machines
Topic: RMLane's 1912 Baker Electric
Replies: 38
Views: 5587

RMLane's 1912 Baker Electric

Thanks for the excellent summary covering your background and total commitment in performing faithful restorations. I did think it was worth mentioning as I have seen the results of some real cowboys over the years and it has complicated many of my restoration projects. In your case, I apologise fo...
by rmlane
Fri, 28 Feb 2014, 13:20
Forum: Members Machines
Topic: RMLane's 1912 Baker Electric
Replies: 38
Views: 5587

RMLane's 1912 Baker Electric

He says in the video that Henry Ford's wife drive a Baker Electric because she couldn't crank start the T-Model. Damn that fancy electric starter motor... Electric cars were very popular with women because they didn't need to be crank started. Before 1912 starters weren't "fancy" - they didn't exis...
by rmlane
Thu, 27 Feb 2014, 19:50
Forum: Members Machines
Topic: RMLane's 1912 Baker Electric
Replies: 38
Views: 5587

RMLane's 1912 Baker Electric

Yup, familiar with Jay Leno's one, though I hadn't seen that movie of it, looks newer, I'll go watch it.

The headlights were always electric and bulb pinouts date to the 19th century, so you can still get suitable bulbs.

It's a great car :)
by rmlane
Thu, 27 Feb 2014, 18:40
Forum: Members Machines
Topic: RMLane's 1912 Baker Electric
Replies: 38
Views: 5587

RMLane's 1912 Baker Electric

Make the stop lights and blinkers detachable for "showing". The vintage car community has pretty much come to the consensus that this isn't required for street-driven cars. Per the comment someone made about the difference between a "museum" car and a road-capable car - if an alteration is required...
by rmlane
Thu, 27 Feb 2014, 03:04
Forum: Members Machines
Topic: RMLane's 1912 Baker Electric
Replies: 38
Views: 5587

RMLane's 1912 Baker Electric

The controller is changing things but if the old parts are still intact and the new controller hidden I for one would be happy. There is a risk that a faithfully restored Baker would only be fit for a museum. On the other hand, a tastefully restored Baker as you propose has more still to do in its ...
by rmlane
Thu, 27 Feb 2014, 02:36
Forum: Members Machines
Topic: RMLane's 1912 Baker Electric
Replies: 38
Views: 5587

RMLane's 1912 Baker Electric

Pretty well anyone can put state of the art components in it but it takes a lot of research and skill to faithfully refabricate and/or restore period components. Would not be easy agree but well worth the time investment in my view if you have the skills base. Worth a lot if done correctly as well…...
by rmlane
Wed, 26 Feb 2014, 23:08
Forum: Members Machines
Topic: RMLane's 1912 Baker Electric
Replies: 38
Views: 5587

RMLane's 1912 Baker Electric

Some might argue you are about to destroy a piece of history? Could you explain how? The original batteries went missing several decades ago. If it had the original Edison Cells, I'd refurbish and use them. The charger in the car dates from the 1960s, the lead-acid cells are modern (over 10 years o...
by rmlane
Wed, 26 Feb 2014, 21:47
Forum: Members Machines
Topic: RMLane's 1912 Baker Electric
Replies: 38
Views: 5587

RMLane's 1912 Baker Electric

Just thinking about this 5.9HP->4.4kW continuous @ 1750RPM @ 48V Most motors can achieve a peak triple this or 13kW @ 1750RPM. Or 26kW peak at 3500RPM @ 96V. I think the 5.9HP quote is running the 48V motor at 56V, so given they bumped the voltage by a sixth, peak RPM is probably ~2,000, so we're 5...
by rmlane
Wed, 26 Feb 2014, 21:22
Forum: Members Machines
Topic: RMLane's 1912 Baker Electric
Replies: 38
Views: 5587

RMLane's 1912 Baker Electric

Why not just replace the existing battery with more flooded lead acid ones. For example, 10 x 6V golf cart batteries. Short version: LFP is smaller, lighter, more interesting and cheaper over the full lifecycle. They also require no maintenance. "Maintenance free" and "more interesting" perhaps car...
by rmlane
Wed, 26 Feb 2014, 19:30
Forum: Members Machines
Topic: RMLane's 1912 Baker Electric
Replies: 38
Views: 5587

RMLane's 1912 Baker Electric

Oh well, if you only fit 90Ah then you can always add another bank. http://forums.aeva.asn.au/smileys/smiley2.gif 90 AH cells also only half-fill the rear bay, giving me room for the charger, controller, contactors a small tool kit and a long extension cord. Rear bay is 660mm wide, 560mm deep and 3...
by rmlane
Wed, 26 Feb 2014, 17:21
Forum: Members Machines
Topic: RMLane's 1912 Baker Electric
Replies: 38
Views: 5587

RMLane's 1912 Baker Electric

Just how ridiculous is 30-60 Watt hours per km? Doing some quick guesstimates / research. The Tesla Model S is.. 85kw/hr, 500km range... 170 Whr/km, but that's at highway speeds in a luxury sedan. OK, Tesla has Cd of 0.24, Baker would be more like... 0.6 - 0.8. Let's assume triple, 0.74, with simila...
by rmlane
Wed, 26 Feb 2014, 16:55
Forum: Members Machines
Topic: RMLane's 1912 Baker Electric
Replies: 38
Views: 5587

RMLane's 1912 Baker Electric

Is this the Baker which went to the Canberra EV festival? You haven't specified the range you want - so if you just want it to "go" or if you want 250 mile range - there's a big difference. If you're cruising at 30 amps / 30kph / 60V = 1.8kW = 60Wh/km which sounds very efficient - but low speed wou...
by rmlane
Wed, 26 Feb 2014, 16:04
Forum: Members Machines
Topic: RMLane's 1912 Baker Electric
Replies: 38
Views: 5587

RMLane's 1912 Baker Electric

The 600x600x400 should fit 20 x TS/Winston 160Ah cells. That would be 20 x 3.2 x 160 = 10.24 kWh so maybe 100km range. I wouldn't expect the efficiency of the vehicle to be quite the 60Wh/km, sorry woody. Original cells were 150 AH @ 56 Volts, measured at the 5 hour rate (30 amps). With that pack t...
by rmlane
Wed, 26 Feb 2014, 15:21
Forum: Members Machines
Topic: RMLane's 1912 Baker Electric
Replies: 38
Views: 5587

RMLane's 1912 Baker Electric

Answers to various questions: I doubt the Baker ever went 250 mile on a charge, but it was so long ago, who's counting. The range is pretty well documented, but I was wrong, it was 244½, not 250. Baker Electric did a documented range test in August 1910. On a lead-acid pack they managed 201½ miles, ...
by rmlane
Wed, 26 Feb 2014, 04:13
Forum: Members Machines
Topic: RMLane's 1912 Baker Electric
Replies: 38
Views: 5587

RMLane's 1912 Baker Electric

Hello fellow car nerds, We have one of the original electric cars, from before the War... WW-1, that is: A 1912 Baker Electric. Original Specifications: Westinghouse 5.9 HP, 48-volt Series-wound DC motor 56-volt nominal, 40-cell Edison battery (nickel-iron) ~250 mile range on original battery pack ~...
by rmlane
Tue, 15 Feb 2011, 01:30
Forum: Members Machines
Topic: Lead Wing's BMW E30
Replies: 26
Views: 7723

Lead Wing's BMW E30

Looks great - what was the mass change after the conversion?
by rmlane
Fri, 24 Dec 2010, 16:10
Forum: Members Machines
Topic: 1912 Baker Electric battery replacement
Replies: 25
Views: 4197

1912 Baker Electric battery replacement

If you don't care about weight or self-discharge, Ni-Fe cells are great. I wasn't aware they were still being made. They'd be great for backup power. While the cell chemistry of the Chinese cells listed above is the same as the cell chemistry of the original Edison Ni-Fe batteries, nothing else is t...
by rmlane
Thu, 23 Dec 2010, 21:53
Forum: Members Machines
Topic: 1912 Baker Electric battery replacement
Replies: 25
Views: 4197

1912 Baker Electric battery replacement

I won't be racing my Austin 7, it isn't safe enough. That said... I have raced in a substantially quicker car with no roll-bar. The Austin 7 has a 4-cylinder, 747 CC side-valve motor that makes 10HP. I've done a full Targa Tasmania in a 2.3 litre, twin-overhead-cam, supercharged straight-8. From 193...
by rmlane
Thu, 23 Dec 2010, 21:38
Forum: Members Machines
Topic: 1912 Baker Electric battery replacement
Replies: 25
Views: 4197

1912 Baker Electric battery replacement

Ouch. That's fairly similar to what my Austin 7 looks like. Poking around for motors for an A-7 conversion shows me just how low powered the Baker's motor is. The smallest motor I've found for a "micro-car" is 100 amp continuous, 300 amp peak... vs the Baker at 60/100... 72 volts also seems to be qu...
by rmlane
Thu, 23 Dec 2010, 20:37
Forum: Members Machines
Topic: 1912 Baker Electric battery replacement
Replies: 25
Views: 4197

1912 Baker Electric battery replacement

1929 Austin 7. Four wheels.