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Hi Jerry, I have had no problems with original Brompton yellow label tyres. Maybe the roads and cycle paths in our small town are not so harsh for the tyres, I mean there is not so much broken glass etc. which could cause puncture. However I keep plastic tyre levers and patches with me all the...

The bike folds nicely if you follow the brake cable route for wiring: I keep the battery packs on my C-bag rear pockets, there are two 6s packs on each. Those two packs are series connected with a 15 A fuse and the outputs of each "pockets" are then parallel connected. I haven't used any...

The controller is attached quick and dirty way to the handlebar with cable ties. It is hold there securely but that is not very elegant solution. Maybe I'll try to attach the new controller between the seatpost tube and rear triangle, there seem to be enough space. Here is the controller...

First of all, I'm very sorry this late update. I just have been very busy lately. The bike is ready to ride but of course there are still some minor annoyances which need to fix sooner or later. First there is the pedelec sensor. When installing it I had to attach it several times. First...

Great pictures, Jerry and nice to know that you got your motor running again! Certainly makes more clear what to expect find inside if I ever need to open my motor... My build is progressing also, the motor is on the fork already, only the connections between the motor and controller are...

A short update about building process: The pedelec sensor has been installed. I had a little difficulties there. The sensor consists of plastic round part with magnets and the sensor part itself which is attached to a metal bracket. First I removed the chainwheel side crank using crank...

Hi all and greetings from Finland! I have been following discussions on the forum already for a while and actually it was this forum that I first time got to know Brompton bicycles, those small folding bikes. Last fall I bought one from eBay.co.uk and it has been in our garage since. It is...

Thanks Jerry! Yes, your range seems to be about twice compared to mine. It's probably due to the higher weight of my bike, its 35 kg all together (25 years old steel-framed trekking bike and SLA batteries worth of 15 kg). I myself weigh a little over 90 kg... yes, I know, I should eat more...

I paid 197 euros including delivery from Germany to Finland, is that about 180 GBP or so for 80 cells? By the way the batteries are not listed on their shop but just ask by email if you are interested. You could also try to feed 12 V to the bad cell maybe it "wakes up". At least my RC-charger...

Kapton tape is good to insulate and keep the wires in place. Should be heat resistant also, got mine from eBay for 7-8 euros / 33 m. Ideally you should not shorten the individual balancing leads, otherwise the charger may read false voltage when balancing the pack: Here are all the leads...

Once you have got the cells out the black plastic end parts drop off easily. Here are the cells exposed: I am going to use two 6s packs on my bike connected in series. If you cut here (I used a Dremel-clone) you will get a pack with that needs only balancing leads and power leads added...

Next you have to unplug the balancing lead connectors. They can be found from the both sides of the pack under the tape: Now you can tilt the bms circuit and take take away the temperature probe: Now it is time to cut the actual power wires (the red and two black ones). Just don't...

Hi all, here comes my report about A123 cells taken out from used Dewalt DE9360 36V power tool batteries. I read a tip about those here in this forum (thanks danielweck) and went ahead and ordered 8 pcs. from ebike-solutions.de. Have to say that customer service was great, it was Sunday...

Thanks for encouragement, Jerry! I only ordered one motor because shipping fee quoted was 150$ for one and 250$ for two, the kit itself was quoted 140$. How well Billy communicated with you during the order process? I can see that my payment has been picked up and I asked him if he has got...

Daniel, I just fixed the pedal. Some pressing on a bench vice & light hammering and it was as new. A question about connecting 6s packs together to get a bigger capacity pack: If two or more 2 x 6s packs are connected parallel like this: . . . . . . . . . . - 6s A123 - 6s A123 - . ...

Jerry, I indeed ordered from the same chinese company you did. I paid using westernunion on Friday and now after weekend their tracking page shows that the payment has been picked up. I have never used westernunion service before but it seems to be quite handy, although expensive. I mean the...

Jerry, I have a question about your ebay-sourced charger... have you checked out what voltage it gives out? If you remember, I asked you about Tongxin motor supplier in the past. Now the motor has been ordered along other things (like spokes, rim, nipples etc.). I'm hoping to get something...

MMC box is an additional "controller" box to be connected between the battery, throttle, pedal sensor and normal motor controller. It's main use is to make throttle legal in most European countries if you use elfkw ebike kit (not available for other makes, at least at the moment). It just...

I have a different brand of motor myself, maybe you remember the youtube video of winter driving I linked a week or two ago... Anyway that kit blew fuse a few times, and when it happened I was always accelerating from slow speed. The controller is a 12A model, and it even blew a 20A fuse...

Great to see that you have got your electrified Brompton running! Your and Daniel Weck's threads have been a great inspiration source, thanks a lot. I also have a 2009 M6L waiting for next summer and I'm going to install Tongxin motor into it... could you please PM me contact details of the...