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@d8veh - Very true - Charge cycles absolutely have a big effect on overall battery life.

The Bosch e bike batteries are made in Poland. As to exactly what "made" means in this context is debatable. My guess is that all or most of internal bits are shipped from China and the spot welding and soldering together is done in Poland. The chargers are all made in China so it would make...

And some more info - the copy battery BMS lets you run the pack down to 30V instead of the standard 36V which Bosch employ. This may lead to shorter battery life in the long term.

I just found this link. http://www.alibaba.com/product-gs/1611695646/Bosch_Replacement_36V_8_8Ah_electric.html They say that they use Samsung cells inside the battery pack. They are also a gold supplier so for them to pull a fast one is highly unlikely I think. I think they have done a bare...

My guess is that the 1000 cycles is an estimate. Just found out when I started using my bike. It was from the start of December 2012. I de-restricted it in Feb 2013. so, approx full charge cycles as follows: Used 3 times per week on average. Usually charged twice per day so that makes 6...

@ Trex - if you do happen to find that email I would be very interested in looking at it to see how they do it. The plastic matrix which holds the cells together is custom made and necessary to hold the cells rigidly in place. So to copy it they must have used a 3D printer or something. So far...

This website mentions the BMS ensuring the battery has about 1000 charge cycles. I don't think this implies that a counter is on the BMS though. http://ebikeee.com/2013/01/31/we-visited-the-official-bosch-ebike-training/

There are definitely 5 pins on the connector. You have pins 4 and 2 as positive and negative leads. Pins 1,3 and 5 take much smaller diameter wires (coloured green, purple and yellow. These wires are connected to the BMS - not sure what they do - though I am sure it could be figured out with...

Are we talking about the new 2014 Bosch batteries as regards to hand shaking etc? Anyway, from my own experience I can honestly say that for the pre 2014 Bosch systems, the battery is not tailored to the motor that came with the bike. I am aware that the BMS in all the Bosch batteries (pre...

I like the workout on the legs with the crank drive - makes you feel you are doing something. I found when I had a hub motor my legs got out of shape a bit if I rode the e bike for too many dates in a row. A new chain costs about £10 and a new cassette (not always required) costs about £30. I...

Ill also be very lucky if I can get the chain on my Scott e bike lasting anything over 9 months being used 3-4 times per week on a 26 mile total daily commute. Usually I replace it every 6 months which gives me a few months extra life on the cassette. I also replaced my alloy 44T chainring with...

In my long years of mountain biking I can say that cassettes outlast standard screw on freewheels in terms of the internal bearings by a long way. As for chain replacement, tyres etc it all depends on so many variables it makes it very hard to make a standard approximation of how fast things...

I certainly think they are turning a blind eye on the dongle issue as many people are running their Bosch bikes with it now. With batteries I can understand that they would be pretty annoyed at someone offering a re-cell service. However, I doubt there is much they can do legally as even if I...

My original battery that came with the bike wasn't damaged as such. I just wanted to see if it was actually possible to re-cell it. I also bought a cheap new genuine 288wH battery from Germany in case my experiment didn't work. Turns out that it is certainly possible, at least for the pre 2013...

I also have a genuine non tampered with Bosch battery as a spare...

Man hours I reckon in total about 1 to open up the case and 2 to re-assemble to pack inside the case with the ribbon cable to solder on to the new cells. I still can't quite see how the new 2014 packs can have an in built shut down in them - perhaps they have but I have my doubts. My guess is...

I just put it on the bike and went for a quick ride - works absolutely fine. I cannot see how the BMS could possibly "know" that the cells have been replaced as it only senses voltage across a range of cells. I think this is just scare stories to discourage people from saving £200 on a new...

Photos of the disassembled pack http://www.flickr.com/photos/lucasimo/sets/72157637969642213/ http://www.flickr.com/photos/lucasimo/sets/72157638294396215/ New pack photos (click on the photos for supporting information) http://www.flickr.com/photos/lucasimo/sets/72157640112603195/

Dear all, I have just had a re-cell done on my Bosch 2012 e bike battery with new Panasonic high drain NCR18650PF cells. Haven't quite got round to putting it all back in the case but so far the cells are charging perfectly. I sent off the internal plastic cell holder to a factory in China I...

Rockshox did certainly have a problem a few years ago with their anodising wearing off the stanchions on their forks - this was mostly due to inferior seals being used. I also had this problem which meant a new CSU from Canada for about £120. For me it was most likely made worse due to not...