Racism didn't exist when my grandfther said that to me. Seeing as you like to be pragmatic, ask anybody that has been trading with Chinese suppliers whether they can trust their suppliers. I can remember just about every trader on this forum pulling out their hair when they saw the surprises in their new deliveries of bikes. Dealing with Chinese suppliers is completely different to European ones. It's taken a lot of work by these people to get to a level where they can expect to get what they want. That's not being racist. It's being factual.However I have concerns in any forum using unnecessary profanity, using statements which could be viewed as broadly racist e.g. "don't trust a chinaman".
Yes, my (fond) experience of working with Chinese people in another sphere altogether (software) is that their 'yes' has a totally different meaning from our 'yes'.I used to be a buyer for a large multi national.. I would say "don't trust a Chinese businessman.."
After days of negotiation, they would say yes to everything, then they would still go and do their own thing and deliver the exact opposite. Highly frustrating!
QA, if it can be swerved by them is a total nightmare.
I agree. Having spent 3 years working over there, I soon discovered that they don’t say ”no” to the boss but they don’t necessarily do what they said “yes” to. And whatever you do, don’t cause any loss of face !Yes, my (fond) experience of working with Chinese people in another sphere altogether (software) is that their 'yes' has a totally different meaning from our 'yes'.
You have half as many cells in a 5Ah battery as a 10Ah one, so each cell has to give twice as much current. A 5Ah battery is probably 10S2P. A low to medium powered 36v ebike normally runs at 12 A ot 15A, so each of your cells would have to give 6A or 7.5A. If it were a 10Ah 10S4P battery, each cell would be giving 3A or 3.75A. In one case, the cells are running at the top of what they can do. In the other case, they're cruising.I don’t fully understand why a MiRider battery would wear out quicker than any other due to the current running through it. Sure 5 Ah will run out quicker than a 10Ah battery but I get the same range using 2 batteries as a mate with one 11Ah battery. Don’t all 36V / 250W pedelec systems have a similar current or am I missing something ?
As it happens we genuinely do ride together as we lack the discipline to do it otherwise. We’re also lucky enough to live within a few hundred yards of the Trans Pennine Trail and it makes sense (well at our age anyway) to ride on a buddy system. Luckily we’ve only had punctures to deal with but a friend of mine had a cardiac arrest whilst riding soloYou have half as many cells in a 5Ah battery as a 10Ah one, so each cell has to give twice as much current. A 5Ah battery is probably 10S2P. A low to medium powered 36v ebike normally runs at 12 A ot 15A, so each of your cells would have to give 6A or 7.5A. If it were a 10Ah 10S4P battery, each cell would be giving 3A or 3.75A. In one case, the cells are running at the top of what they can do. In the other case, they're cruising.
The more current you take from the cells, the lower the capacity too, so although your battery is supposed to be nominally 5Ah, You won't get much more than 4Ah out of it if you run with any meaningful assistance.
The more current you take from a battery, the faster it wears out.
The more current, you take from the cells, the more sag you get, so the lower your power too, as the maximum current is fixed by the controller, and power =current x volts. You have the same current, but not as many volts.
Comparing consumption with another bike is only meaningful if you ride together, are the same weight and pedal as hard as each other
Was the extra bar the bar you had the beer in?I discovered the upside to battery sag - when you stop for a break, the battery recovers. Halfway around our usual circuit, I was down to 2 bars but after a beer and a natter, I had 3 bars !
Trust me, I’d never live it down if I had to phone the missus for recovery and that’s why we’re doing shortish rides to establish the real world range. I’m last house on the route home and up another steep hill. It was good to see that after the battery rested it bounced back to 3/4 which is consistent with the behaviour noted on the first ride. Also, again on the first ride, it seems that the last bar on the gauge is very similar to the last 30 seconds on any Microsoft installation (and I‘ve been around since MS-DOS). I expected to be pushing home but it managed the long drag and the final climb home without any bother.
Vfr - Sounds like a bit of a con then regards bikes batteries if true ^ As for chinese ive always found them to be very aloof , just not a friendly nation and untrust of other people ..When in Edinburgh i recall seeing 2 chinese people taking pics of one another ..i said you both like pic taken together was no no no and walking away ..ignorant i found them with their mistrust of others ..ive said same with Americans and Canadians and other nations inc Japanese people and all fine although once in Princes st in Edinburgh was seated with wife and this American guy came sat down on seat beside us with his acoustic guitar and i was learning acoustic this time and said nice guitar im a learner and he got up crossed road and walked away ..mean i dont look like type guy who is gonna take his guitar and leave with it on my hands ..i am just a friendly guy who trys be nice to others .. like when in Italy at Lake Como i seen these 3 guys and was one guy takeing other twos pics all time and he was not having any pics taken i took note and i walks across ..said you like in the pic ill take your pics together ..i took one pic and this Pakistani guy and Afganistan guy were fine but other bully guy id say fro Pakistan seemed bullish for his camera and handed his cam to guy again who was never in any pics to take of him all time ..me me me was that guy .. But Chinese race for me wins hands down of being unfriendly although i say they worry no one and carry on with their ways within their own communities ..Once in a bar again in Edinburgh and all them chinese staring in at us all at bar ..one guy offered them inside for a drink and no no no and again smiling they were and walked away ..just trying to be nice eh ..Anyhow its a big World out there and is all kinds ..long as they worry no one then allow them to live their ways ..Ps For the record i drink no more was few yrs ago now ..Don't be lulled into false security by that battery gauge. With 2 bars showing, you wouldn't have been able to go much further. The gauge isn't linear. it's always good to run your battery right down once so you can see how the gauge behaves. Bear in mind also that the battery will sag when you go up hills, so will cut out before it's empty.
It's nothing to do with that. It's because the display is just a stepped voltmeter, so all it shows is the battery voltage. The battery starts at 41v and cuts off at 31v, so half way down is 36v, which is when you see two bars out of 4, but the discharge isn't linear. Have a look at the chart below for a lithium battery. You can see, that it used up 80% of the charge by the time it reached 36v:Vfr - Sounds like a bit of a con then regards bikes batteries if true ^ As for chinese ive always found them to be very aloof , just not a friendly nation and untrust of other people ..When in Edinburgh i recall seeing 2 chinese people taking pics of one another ..i said you both like pic taken together was no no no and walking away ..ignorant i found them with their mistrust of others ..ive said same with Americans and Canadians and other nations inc Japanese people and all fine although once in Princes st in Edinburgh was seated with wife and this American guy came sat down on seat beside us with his acoustic guitar and i was learning acoustic this time and said nice guitar im a learner and he got up crossed road and walked away ..mean i dont look like type guy who is gonna take his guitar and leave with it on my hands ..i am just a friendly guy who trys be nice to others .. like when in Italy at Lake Como i seen these 3 guys and was one guy takeing other twos pics all time and he was not having any pics taken i took note and i walks across ..said you like in the pic ill take your pics together ..i took one pic and this Pakistani guy and Afganistan guy were fine but other bully guy id say fro Pakistan seemed bullish for his camera and handed his cam to guy again who was never in any pics to take of him all time ..me me me was that guy .. But Chinese race for me wins hands down of being unfriendly although i say they worry no one and carry on with their ways within their own communities ..Once in a bar again in Edinburgh and all them chinese staring in at us all at bar ..one guy offered them inside for a drink and no no no and again smiling they were and walked away ..just trying to be nice eh ..Anyhow its a big World out there and is all kinds ..long as they worry no one then allow them to live their ways ..Ps For the record i drink no more was few yrs ago now ..
Your bike uses a KT LCD5 display. The battery indicator is just a voltmeter, though it has an adjustable damping coefficient, which can cause a bit of a delay in what is shows compared with the actual battery voltage. That's so you can use it more like a fuel guage. If you set the damping parameter (P5) to 0 (no damping), it goes up and down all the time, depending on how much power you use, so isn't so much use. The damping gives a moving average of the battery voltage. The higher is P5, the longer the period over which the average is taken.It must be calibrated in the MiRider display somehow because I can confirm that I’m able to gauge my return point on a ride by using the indicated battery levels I.e. turn back with 2 bars remaining. It’s also true that there is juice in the tank when the last bar disappears as it still manages a 6% incline.
Using the same methodology on my new bike, however, resulted in an abrupt stop about 300 yards from home despite 1 bar remaining.
What you're saying doesn't compute. 2020 and 2021 Mirider One use KT LCD5s. Have you modified something or are there different versions? You can see it in the photo in this listing.I much prefer the MiRider display. Do you reckon it would work with the Bafang G020 motor ? I’ll try to remember to take a pic of the existing unit - it’s a total pain to operate with gloves whereas the MR was very responsive.