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Hi Mel, Yes, I'd be interested in buying a few motors, and possibly also adding some spares to an order. The problem seems to be how you get Tongxin to actually 'talk' to you?. At one point, I wanted to potentially source 9 motors, but they didn't even reply to my mails. Managed to source two...

Balancing cicuit It is basically just a precision Zener. The problem is that on these cells, the resistance remains low as the cell voltage rises, and a a critical voltage (I think it is 4.235v on a Li-Po cell), the chemistry starts to go really haywire, with the cell overheating, and...

The plug.... Caroline has posted a picture of half the connector. It is like a Bulgin connector, with seven pins. Measures about 34mm*40mm*120mm when together. Weighs well over 100 grams. No clips, and not very tight. For my brother, after only a couple of days, it started falling apart over...

Comments Let me add a bit to this. First, the duty on import. This is something that you will need to factor in, when looking at Freedom's prices. You will pay: Duty on the price. VAT on the _total_ (price+duty). Probably a "custom's clearance fee" on the lot. Allow +20 to 25% and you...

Hi again Hi Daniel, It was your pointers to just what you were doing, an the threads here about them, that made me decide to 'take the plunge' and join over here. :) I'll put together something about the controller. As you know this is 'ongoing'. Rides beautifully, but still having problems...

Balancer. Missed your question about the balancing circuit.... Dead cheap/simple. Used the higher accuracy version of the TL431 (5mV), with 0.1% resistors for the two setting the reference point. The rest are non critical, except that the main load resistor, needs to be able to handle 0.3W...

A123's Hm. The attachment ought to have worked..... Trying again. It is comfortably 'sized', probably the script blocker in my browser decided to interfere!.... The A123's, are a modified LiPo battery, with some extra chemistry, improving their ability to stand high discharge currents in...

Some more M+ experiences Hi, Saw this thread, and thought I'd add my own reports on the Marathon plus, Kojak, and Marathon tyres. First of all, the M+. is very puncture resistant. At times in the spring, I used to think myself 'lucky' to get a few miles without a blackthorn puncture, after...

Another new member Hi, Another new poster here, with some details of my experiments in 'e-bikery'. Have posted a short history of the track to this point in the 'introduce yourself' section of the forum. Basically had a Nano for a while, and decided to try some experiments. Have since...