"I don't live in the past. I'm always excited by what I'm doing in the present." Sir Clive Sinclair

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Other interests and hobbies / Re: Lion
« Last post by Umpa on 04, January, 2018 - 18:01:19 »
Forums really are time machines.  Its now 2018 and have upgraded many times and am now on HighSierra (same Mac).  Did not have any of the issues RoboSoft had.  Time is a funny old beast.
C5 Chatroom / I still have mine
« Last post by Umpa on 04, January, 2018 - 17:52:48 »
Just to say that its now 2018 and I still have all my C5 equipment.  Not had them out in a good few years, but I sill have e'm.  If I stay on schedule towards the end of 2018 I will be renting out one of my properties (where I keep the C5's), so I don't know what the future holds, but for now I still have e'm.

What about you guys ? are you planing on driving them much this summer ?
Welcome To The Forum / Greetings from Austria
« Last post by hans44 on 13, September, 2017 - 10:23:13 »
Dear friends of the C5,
as luck would have it I have been the proud owner of a C5 (serial number 100051001173)since the end of June. It had been resting in peace for the last decades in the yard of a waterlily farm here in Graz. The original idea was to transport waterlilies from one pond to the other (of course with a trailer) :-) As the terrain is not very C5 friendly - the farm being situated on a slope - the project was abandoned pretty soon - after the controlbox refused to work.... the usual problems - blown fuse - burned diode - faulty IC ....

At the moment I am trying to put the parts together again  - the only problem I have is the hoop - it was badly out of shape  - Ed offered to send me a used one - which at the time didn't seem necessary to me - but now obiously it is .... :-) I emailed him already....

Will keep you informed!

Regards Hans (probably the only C5 owner in Austria)  :-)

For Sale - Complete Sinclair C5 / C5 - family owned from new SOLD SOLD SOLD
« Last post by Tom on 27, May, 2017 - 14:13:32 »
just posted on Gumtree - C5 in good optical condition, no battery and not tested
C5 Meetings & Events / Re: BBC Breakfast Show - 15 Feb 2017 @ 7:00 - 9:15 am
« Last post by baselpat on 15, February, 2017 - 08:25:56 »
To assist the launch of this?:
C5 Meetings & Events / BBC Breakfast Show - 15 Feb 2017 @ 7:00 - 9:15 am
« Last post by Lancealot on 14, February, 2017 - 22:28:12 »
Hi all,

I have been asked to supply a few C5's for tomorrow's breakfast show............ Lets see what happens

ta Lance
C5 Chatroom / Are they really fetching this kind of money ?
« Last post by Umpa on 05, February, 2017 - 19:56:21 »
Hey guys,

Just browsing eBay and saw this :-

Is this for real ?  Do they really fetch that kind of money !
C5 Support / Battery, inner tubes and tyres needed
« Last post by Paul Langton-Rogers on 23, September, 2016 - 11:28:24 »

Hi everyone,

This has probably been asked a thousand times, so forgive me, but I can't find any clear answers after searching...

I have an original 30 year old C5 with white boot (totally unmodified) I'm looking to get running..


1) Battery Replacement: It needs a new a 12V battery. Can I just source any 12V lead acid car battery of the same (or higher Ah rating) and similar dimensions to original? And is it just a case of connecting the two wires, or is there more involved and some electrical conversion needed to make the C5 run off a modern car battery? If anyone can recommend a specific battery size/make or source even, that would be great. There's tons on eBay new cheap but I have no idea what I need!

2) Replacing inner tubes and tires. Are these just regular 16" for the front wheel, or do I need to source something specific for the C5? And how about the rear 12"? I've never seen 12" inner tubes or tyres, so anyone could recommend a source for these or give some info on what kind of tyre width and size is needed, I'd appreciate it!.

3) Indicator lights. My C5 has them, but all the inners (bulb, any circuit? silver backing etc) have all long since gone, so all I'm left with is the amber plastic cover and the black plastic mounting base part. To repair the indicators, am I correct in assuming just need suitable 12V bulbs and the flashing part is done via the C5's own circuitry? I'm considering putting some high intensity 12V flashing LEDs I have inside instead of bulbs, due to the silver backing missing and normal bulb not being bright enough. Any thoughts on this?

Finally, quick question about the 24V dual battery conversion kit I know this site offers and some have opted to install to add extra power and range to the C5. Is this worth doing and is it a fairly easy mod to do? I can solder and know basic electrical stuff, but wouldn't want to get into any heavy duty work changing the C5's wiring loom and/or circuit board etc.

I'm restoring an old 30 year old C5 (which i all complete and very clean) I inherited with a view to selling it on, so this is not for my own personal use and hence I want to keep costs low and just do the minimum to get it working again, but if I can add value for the next owner, then I might do the 24V mod. Do owner-collectors prefer that 24v mod done, or things kept original?

Thanks in advance guys for your answers and any tips you might have to share!


C5 Faults & Solutions / Flashing POD lights!
« Last post by AndyH on 10, September, 2016 - 20:00:40 »
Hey everyone, I have been lucky enough to acquire a C5 which seems to work fine except that the lights on the left side of the pod flash on/off with the amber LED's either end steady (the LED's on the right hand display are constant which I think is normal).

I don't think it's supposed to do this ... can anyone help?  The motor & everything else all work fine.

Really keen to have a go in it but don't want to damage it if this is some kind of warning signal ... always wanted one of these as a kid but my parents wouldn't let me so really want to get it going :)
Welcome To The Forum / Re: New owner
« Last post by Ton C5 on 10, September, 2016 - 18:04:18 »
Hi and welcome to the wonderful world of the C5.
it is getting quiet here, but if you need any help just ask.

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