Dear Battery ..., do not post here your suggestions about how you keep the battery charged to 80% and storing it for a week or so, then prior to your ride charging it full up to 100% and draining it down to 20%, it does not help in this case.
Hi, and sorry for not to beeing to be a reasonable guy. My first words should be: Welcome to the largest community of users who have the same problem with the battery and I am very sorry that your retailer has chosen the battery you are the owner of. However, sarcastic this is, you are now part...
I have no idea how they treat the newcomers here. I do not care, this forum has got a lots of experts who will explain how you should treat your battery and they do not undrstand that this particular battery has got a "scheme/pattern/trending" and it is present all around the globe. I am pretty...
Thanks a lot, and all I can say, you are doomed. While you cannot see any difference btw 100% and 90% capacity, you will see this when you get down below 84%. I still do not understand why people think that the capacity of a battery represented in percentage is 'an illusion'? Hey guys, read this...
@electricbogaloo Have you got this particular battery please? Let us please know, if so, are you the one and happy user who charges it 80%, stores it room temperature, never goes discharging it below 20% and your capacity per 13 cycles is 99%?
You will notice this when your capacity goes down below 80%. This is when you will have to get off your bike and start to walk your final miles the way you use it. I do not find any conflicting info in this thread. Some guys here are fine because they have got a different model of the battery...
I am sorry but you still do not understand that you can do anything you want and this particular type of battery degrades very very very fast. Read this whole thread and statistics and forget about proper storing and best practice charging. I know what you mean but this does not apply to this...
Sorry for the late response but I have been snowed under with lots of work and biking and decided to test before posting anything. Guika, no firmware update found, still the same one 1.0.0.0. Currently, I have got 6 cycles with the new battery and 100% capacity. I am experiencing E010 per ride...
Sure, 8035, I need to check if it is true, I am off for a couple of days but will conect the Shimano diagnostics this week and will let you know the version. I only received it on Friday from Shimano claimng that they have updated the firmware. How? I have no idea.
My assumption is that the cells in these batteries are not faulty. Replacing them will not help. There is something faulty with Shimano BMS or firmware. My original idea was to keep my faulty battery and have the cells replaced but as I was gathering more info I realized that there is a certain...
A little update after sometime...I have just been warrantied my battery. Initial discussions with Shimano started in February. Shimano says that the battery has got an updated firmware. I will check that and post the version later. The old battery, apart from having low capacity around 76%, kept...
Your comment only leads me to the thread on E8035 and my answer is still the same: BT-E8035 is a poor design and the stats provided elsewhere only prove that. The stats more or less show that they are very consistent in how the batteries degrade the same way, i.e. very fast. If it is the BMS and...
Some say it is the cells, some say it is the BMS, even some other ones say it is a combination of more factors, the actual set up of the bike: anything you may think of, i.e. firmwares, motor, battery. All of that is hard to measure and provide reliable stats as a regular mortal biker :-) The...
Some guys here will not like it, but, IMHO, you kgs do not matter, this battery has a got a certain profile to degrade fast and you will only realize that when you loose your km range and it becomes to be visible when the health of the battery is below or close to 80%. Most of the seasonal users...
I guess you got lucky but it depends for how long... You will know right away, when you make your first 10 cycles. Unless, you are receiving a new battery with a new design, it will have the same fast degrading profile.
Still waiting for Shimano to warranty my battery. If they do not, I would have to prove the loss of capacity. In that case I will have to contact an expert to conduct such an analysis. What are the obstacles? Why is it hard to perform one?
Thanks for your contributions, I think I am already seeing a different picture. Not very clear but perhaps it will be the baseline for more grounded assumptions regarding this issue on my part. I meant draining or flattening, sorry.