warning about ENERPROF.DE / ENERDAN battery&accesories

[amberwolf]

As long as you clearly state which things are AI-generated, there's no problem.

(for instance, I have numerous bits of "information" in my wolfy project thread from AI sites, each listed as such along with the questions I asked them...knowing what was asked gives much better context to the results.)

The problem is when people post AI-generated information without clearly stating that it is sourced that way, because other readers may attempt to rely on that information, which is very often wrong in subtle ways, and can be wrong in spectacular ways that could cause people grief if they use it without vetting it first. Knowing it's from an AI gives readers the chance to do this.

(of course info from actual people can be wrong too)

 

[d8veh]

well my range was about 30km before battery went for repair, i tested this about ten times, and the final voltage should be around 54.7 according the manufacturer and it was mostly at 50.3, 50.7, 50.8 volts, even then i got 30 km range, and according several range calculators for ebikes its close to what 960wh 48v 15s5p 30 bms lifepo4 should give on my ebike what has m620, i constanly got range estimate of around 40km depending of the weight load and wind resistance and the amount of inclines and their steepness, infact the controller saying the battery is at 73% charge as freshly charged and when adding 7- 10 km to the range it would be exactly what the range calculators would estimate. i am aware that lifepo4 cells have charestics to drop their charge status even nothing is drawing energy, aka resting voltage, i am aware that the m620 controller is set for nmc li-ion batterys and will cut the power at 41 volts, when i reached enerdan.de about the 50.3 freshly charged voltage i was asking is that normal because the controller show only 73% charge, and they said its not and asked me to send to them for analysis and repairs, i didint say to them that they send me broken battery and fix it.

15s LiFePO4 batteries always measure around 50v. see post #6 above. You charge it up to 54v, but by the time you're ready to ride, it'll be showing just over 50v. LiFePO4 behaves differently to normal Li-ion batteries, and every indicator on your bike is for a Li-ion one, so not valid. You need to start listening instead of telling.

 

[tomtom81]

15s LiFePO4 batteries always measure around 50v. see post #6 above. You charge it up to 54v, but by the time you're ready to ride, it'll be showing just over 50v. LiFePO4 behaves differently to normal Li-ion batteries, and every indicator on your bike is for a Li-ion one, so not valid. You need to start listening instead of telling.

i think battery manufacturer knows better than you, they said it should be close to 54v right after charging, they also said it might drop around couple volts to 51.8 v if its not used in couple of days, not used and in month it can drop somewhere 49-50 v if not used.

also can you stop talking about the volt, i think everyone who read this thread knows your opinion and mine allready, current state of battery is non-working and im waiting enerdan.de contact me next week about it, this is not tech talk about lifepo4 batterys it is just about the releations of consumer and supplier. if you were here to help and not argue i thank you for your opinions, i wish we can move one from this debate.

 

[Sturmey]

well my range was about 30km ...........

30 Km is a remarkable bad range for a 960Wh battery on a bike restricted to 25 Km/hr. Taking this alone at face value, your battery pack could well be not up to standard or have a bad or disconnected cell.

 

[tomtom81]

30 Km is a remarkable bad range for a 960Wh battery on a bike restricted to 25 Km/hr. Taking this alone at face value, your battery pack could well be not up to standard or have a bad or disconnected cell.

well i thought so too, it should be somewhere in 40km at least as considering that its heavy bike and im heavy person and i haul many times some kind of repair box and groceries, the weight load can be 110-130kg on bike and bike weight about 32kg and where i live has at least 10-15% gradient hills at least three or four every time i ride and theres not much flat area here overall, motor is bouncing from 0 to 1380 watts. and i also have fatbike tires what have 26x4 inch knobby tires on 20 psi pressure, also the carbon belt drive probably is not as efficient than well lubed chain, and my riding style.. i used mostly like moped with twist throthle, my knees, feet and back injury kind of prevent me riding with normal bike so there is not much of pedaling if any. i used chat gpt and several ebike range estimators to calculate the range and it was always on 35 to 65km depending how i changed the hill inclines, weight what im hauling and wind, but after this i was sure that it should at least have 7-10km more range if not more, this is why i contacted enerdan.de about the battery with the other indicators mentioned before.

 

[fill]

I suspect some of the problems with your supplier and subsequent support difficulties may mirror your experience here where you early on admit to using AI without clearly stating it was for grammatical and translation purposes only.

Just the suggestion you have applied AI for anything technical will have devalued any credibility your info had possibly instigating the double checking of your 'facts' with the subsequent email exchanges.

Ironic as your intent in sharing that detail was probably intended to present you in a technically enlightened frame.

AS to progressing, I would suggest a humble mia culpa approach confirming your limited use of AI link here as an illustration of ?similar? confusion perhaps? -But also confirm your consumer rights and look into the appropriate actions you may need to take.

 

[tomtom81]

I suspect some of the problems with your supplier and subsequent support difficulties may mirror your experience here where you early on admit to using AI without clearly stating it was for grammatical and translation purposes only.

Just the suggestion you have applied AI for anything technical will have devalued any credibility your info had possibly instigating the double checking of your 'facts' with the subsequent email exchanges.

Ironic as your intent in sharing that detail was probably intended to present you in a technically enlightened frame.

AS to progressing, I would suggest a humble mia culpa approach confirming your limited use of AI link here as an illustration of ?similar? confusion perhaps? -But also confirm your consumer rights and look into the appropriate actions you may need to take.

Well i Have not used AI as communicating with supplier, nor i Have accused supplier Sending me faulty battery, i give The measurements and Ask what it should be and they Said its not normal and told me to send The battery For repair. Consumer rights Are very clear on EU and i triple checked Them before, rules state that i should Have product with advertized specs. New not used, seller has all resbonsibility to get product shipped to me on perfect condition and all repair and shipping cost should be Sellers resbonsibility on warranty, i Have right For full refund If these rules Are not met, also states that warranty should Work immedeattly by replacing The product with new or equilavent as new with Out delays, If seller cant met these warranty rules, i Have right to use third party repair shop at their expense, but For this i need EU consumer official recommodation. also what comes to use of AI, if we go to smallest detail then actually only straight copy paste from chat gpt was the calculations what i posted, and i did mention it is done by chat gpt, what comes to my original post, i first wrote it and then asked chat gpt to remove grammer spelling errors but after that i also edited some parts of the text, so basically it was done by me in the end because i edited chat gpt´s edit, though i dont know how this have anything to do with using AI to create messages in this site.

 

[Sturmey]

well i thought so too, it should be somewhere in 40km at least as considering that its heavy bike and im heavy person and i haul many times some kind of repair box and groceries, the weight load can be 110-130kg on bike and bike weight about 32kg and where i live has at least 10-15% gradient hills at least three or four every time i ride and theres not much flat area here overall, motor is bouncing from 0 to 1380 watts. and i also have fatbike tires what have 26x4 inch knobby tires on 20 psi pressure, also the carbon belt drive probably is not as efficient than well lubed chain, and my riding style.. i used mostly like moped with twist throthle, my knees, feet and back injury kind of prevent me riding with normal bike so there is not much of pedaling if any. i used chat gpt and several ebike range estimators to calculate the range and it was always on 35 to 65km depending how i changed the hill inclines, weight what im hauling and wind, but after this i was sure that it should at least have 7-10km more range if not more, this is why i contacted enerdan.de about the battery with the other indicators mentioned before.

Grin do a 'Trip Simulator' which I find reasonably accurate although some of the smaller roads are not shown on the map. You can use the Bafang BBSHD setting for your motor and hopefully you can plot your route. (select google maps)
It is also possible to do a good test on a battery without dismantling or opening seals etc, by doing a discharge test to calculate the working capacity of a battery . (This involves fully charging the battery and possibly leaving it on the charger for some time to settle and balance. You then discharge the battery into a load, recording the time, current and voltage at regular (e.g. 15 min) intervals. You stop the test when the voltage drops to 41V and this gives you an approximate working capacity of the battery that is often about 90% of the rated capacity for a new (Li-ion) battery for various reasons. The first time I done this, I had no special tools other than a multimeters (two is better), an extension lead and 2 electrical heaters and a clock. I have since acquired a better arrangement (dummy load) but I always test any new or home built batteries for actual working capacity.)
Anyhow, you could possibly ask enerprof did they do a capacity test on your battery when you returned it and if they did, what capacity did they get. If they did not test the capacity, I am wondering how can they be sure that the battery is good?

Trip Simulator - Tools

ebikes.ca

 

[tomtom81]

Grin do a 'Trip Simulator' which I find reasonably accurate although some of the smaller roads are not shown on the map. You can use the Bafang BBSHD setting for your motor and hopefully you can plot your route. (select google maps)
It is also possible to do a good test on a battery without dismantling or opening seals etc, by doing a discharge test to calculate the working capacity of a battery . (This involves fully charging the battery and possibly leaving it on the charger for some time to settle and balance. You then discharge the battery into a load, recording the time, current and voltage at regular (e.g. 15 min) intervals. You stop the test when the voltage drops to 41V and this gives you an approximate working capacity of the battery that is often about 90% of the rated capacity for a new (Li-ion) battery for various reasons. The first time I done this, I had no special tools other than a multimeters (two is better), an extension lead and 2 electrical heaters and a clock. I have since acquired a better arrangement (dummy load) but I always test any new or home built batteries for actual working capacity.)
Anyhow, you could possibly ask enerprof did they do a capacity test on your battery when you returned it and if they did, what capacity did they get. If they did not test the capacity, I am wondering how can they be sure that the battery is good?

Trip Simulator - Tools

ebikes.ca

the battery is not working at all at the moment, therefore i cannot discharge it. i send them email after i got the battery from repair and ask what volt it showed if they did test charge the battery but got no response for the question.