John in CR wrote:Let him know that the ability to program is a big selling point, and will significantly increase his sales for 3 reasons.
1. More people will want it, because they can customize to better suit their own motors and needs. There are some settings that really are best taylored by the user, such as LVC, regen, security, 3 speed %'s, rev%, etc.
2. The performance chasers will push the limits, blowing more of them and buying replacements, but potentially leading to product improvement if there is a means to report failure types. With the ability to program they will also take responsibility and be more like beta testers, without failures being reflected poorly on him, the manufacturer. Send us what he thinks are solid settings and we'll beat on it first, and incrementally go up from there to discover the real limits.
3. We'll hack into being able to program it anyway, so saving us the trouble will make us more loyal customers.
I'll pay the extra for real 4110's on both. Also, put me down as a beta tester even before you get all the way satisfied with the end result. I'll take the $$$ risk no problem. I need some high power controllers in a big way, so I will just find others to buy in the meantime if these are delayed for much evaluation. Plus I have one of the larger varieties of higher power motors on bikes ready to go, which are running with safe boring controllers in the meantime.
I have discussed all of your points above with Leo. No can do.
This thread was always to end up as an open source. All I have done so far in keeping the contact info out of this tread is to try and pin Leo down on the source of the FET's.
I have also got the price down to $108 each, with $40 shipping and $103 for 10 pieces.
If you are prepared to order one, here is the contact info;
Leo Liu <firstname.lastname@example.org> (I previously posted this in the other low-cost controller thread) http://greentime.en.alibaba.com/
DON'T CONTACT THROUGH ALIBABA, use the gmail account.+
My only reservation is that even though the 4110 are stated to be from Mexico and he provided pictures and proof, I am still a skeptic. This is obviously a very small shop, willing to make a few pieces at a time. My next move was to order one and see what I got, before leading other lambs to slaughter. Send Leo an email. He is very quick to reply. He can also supply 24 and 30 FET devices.
Other ES members have received 1500W 72V controllers from him and are happy with them. http://endless-sphere.com/forums/viewto ... &start=465
I have 5 of these controllers and so far 2 work fine. I did not buy them directly from Leo, but from DHGate, because of the "free" shipping. $40 total, each, landed at my door in 5 days. Seems impossible, but they are here. There are 3 different MB and chipsets for this controller listed as #OT100. Seems like #OT100 is a generic description.
Other than my experience with the 1500W's, I have no idea what the outcome of the 5KW will be. The info and the price is above for anyone who wants to order. Hopefully the results will be good and posted in this thread?