Recent content by menvert

Nice looking tool, I did open mine when it was fairly new and since I put grease on the threads, but it's still hard to remove. What I did was find a longer screw/bolt that fits, and put a few nuts on it as washers so it protrudes about a 1 cm and tighten it in place, then sitting the wheel...

Well, I finally retired my XD 2 speed, finished with around 15000km / 8 years on it, with the last 4 or so no longer doing a long commute. The teeth got chewed up again on the plastic sun gear and I have no spares. It had become noisy (clacky sound due to the mechanism's bearings having too...

The previously supplied link still works; but if it never powers on, I think it is stuffed, or you have a loose wire. http://www.szktdz.com/upload/file/20140913/20140913155038_92748.pdf

Yeah, What parabellum said, adjusting the target voltage isn't the same as calibration. I was watching it closely yesterday and initially voltage read is correct but as it ramps up amps to the full 38A, it only has to go to about 3A before the voltage drops rapidly, by as much as .3v (for...

No calibration on this charger that I know how to access...Good call, I didn't even think of trying LiIo option with it's 4s taget voltage of 16.40v instead of 16.80, Which is ideal in this situation, also I can adjust the LiLo cell target anywhere between 4.08 and 4.20 (Lipo is 4.18 - 4.30)...

My new batteries are doing great, now nicely bedded in so they charge up nicely balanced now. However my charger keeps going over-voltage while charging.... Not sure if this is only an issue on the 4s which was not an issue on 6s or the charger is stuffed and is quite possibly a cause of my 6s...

My experience with that 12s 44v lipo on the XD 36v controller it was slightly too much voltage and would cut out after a high load (cresting a big hill) for the motor though shouldn't cause any issues. So it really depends on controller that one had 50v capacitors but cut out above about 47v

Yeah I got a new battery sorted, my motor is running nicely still, but as I said I now have a rattle in low like a missing roller spring, not bothering me much, the other sounds has calmed down now also. I went with a Hobby King MultiStar 16Ah LiPo again, these are a whole different category of...

For comparison I did an endurance test on my 3x 4s 16Ah and yes, just below 3.6v under load they fall off the cliff really fast I was riding @ 43v then 500m later 42v... I limped home to about 41.6v at rest with these cell voltages; 3.44,3.45,3.47,3.53,3.45,3.61,3.64,3.41,3.40,3.37,3.46,3.37 -...

Yeah they will still be great for fast 'ball park' checking of my cells, glad I am not reliant on them for balancing though, mine only measure to the nearest .01v do yours go to .001v? Only once I fully charged did I get one of the BM'ss out by the .04v When I measured with volt meter all...

Aren't those stats highly dependent on how many watts you drew down?... as in If you already got a full 10Ah at that point, then it could indicate 2 cells that are over spec? That and are you getting a 2nd opinion on the voltages?... my Turnigy Mega 1000W Charger randomly over reads cells, and...

Good to hear bigoilbob, The gradual amp-up is why they chose sine wave controllers pretty early on I believe. I certainly got better range, or rather less Ah used for my standard commute consistently with the thin ptfe in the clutch, will be good to see if it pans out simmilarly with you. I am...

Yeah sounds good, and I'll probably go that way if I get a BMS, but right now it's gonna cost me more than the batteries for a genuine one and only 5.95A, when I already have an pricey charger (but max 8s) Does any Power supply that states CV/CC automatically ramp down at the end too? The...

Nope, it is as you say, I charge at 6s and discharge @ 12s (and planed to charge 3x4s in parallel with the new kit) I just hadn't heard or read anyone (whom accepts HK Lipo with no BMS as acceptable) suggesting this isn't a good way to do it, or that it is the Worst, as you said, so wondered on...

I am not sure what you mean by breaking packs? I had 2 6s packs that run in series on the bike, to 'bulk' charge - I plug the main outputs (2) in parallel into the charger and charge, not balance up to the minimum I can (50.2v) then I had to remove them from my bags so I can reach the balance...