Search results

Because #11 is only 3.61v it is at about 40% charge so is the common denominator, it matters not what the other cell groups charge to. Your battery is only at 40% charge so once that cell group hits lvc first then the BMS will respond and cut power. The BMS doesn't balance the cells in use so as...

Either the cell group is faulty or the BMS is faulty and the bleed resistor is stuck open and self bleeding the voltage down. Once charged let the battery sit for 24 - 48hrs and see if the #11 bleeds down. If it remains stable try discharging the battery by riding and then charge up as normal...

Replacing cells is only an option if you already have a spot welder, nickel and insulator's etc,etc. These items are a couple hundred £££'s to buy. If the nickel is solid and secure with the welds then one can try to see if the group will balance manually, for this you need an old 5v 500ma...

You have a couple of choices go back to the seller to see if one can come to some agreement on terms. Or as a last resort if no joy try to rectify the pack. One can try checking for a false contact with the nickel interconnector on group #11, If you have a plastic tool or a wooden kekab skewer...

Well done, good job. #11 is where your problem lies it is the weak link. Either the cell group (6 cells)in that group are all faulty or one or two cells are toast and pulling the cell group down. It is the reason why you are hitting lvc and seeing voltage collapse. #10 is fine.

Manual for Intelligent 850c . Microsoft Word - 850C Specifications-5S 2016 (1).doc (emubikes.com) Just in case the controller isn't configured correctly there ae advanced options to check motor direction and halls are switched on. Are there any error codes ?

Describe the noise, if it is is an electric cracking noise then it is phase out of sync and one will damage the controller riding like so.

I use a USB Lezyne 400xl 3 flash modes and two fixed modes.

10 sp freewheels are available, though you may not like the price. Also with freewheels one has to consider the stack height so the D/O's may need spreading, 10sp are typically about 40mm. SunRace 10 Speed screw on Freewheel 11-36T (sjscycles.co.uk) SunRace MFEZ1 Threaded Freewheel - 10 Speed...

Good bit of kit those rear wheel stands SW, I recently got mine for £14 on ebay made by Oxford.

Motor connection sequence on the 9 pin motor connector are std and don't differ it is the only bit of wiring that is generic. I have used Bafang, AKM, Yose and MXUS all are the same. What may differ is the phase sync and the controller may not be reading it correctly, does the lcd display have...

To simply get the 13 cell group voltages sit the battery on edge with the BMS on the top/upper edge, number #1- #13 on a bit of paper & set you meter to 20v dc. Place Black probe on -1 as per the edited pic and Red probe on 1 on the opposite face, write down the voltage against #1. For two do...

Lets make it simple, all the positive cell can ends which there are 13 all have the insulation card on that end and the negative can end is blank and do not require it. I have edited a pic of your battery and written the cell groups order on it. As the cells are top and tailed note they go...

You only need to pull the White JST sense wire multi connector out for testing when direct access to the cells aren't possible. As both faces of the cells are accessible then the job is as easy as it gets and there is no chance of a fire or shorting of the probes as it just doesn't happen unless...

Off to work so no time for a proper reply, will do so later or tomorrow. Some one else may chip in with advice in the meanwhile. All will say for now is you will have to reduce C5 value to reduce the current draw load.

That's why I said touring as touring involves distances, a complete waste of time for short journeys. I have only met one ebiker using solar as an optional source for charging and that was for charging a spare battery. He was proper touring doing long rides with camping gear and a trailer.

Ok thanks, it should work then one would have thought.

ebike solar charging is impracticle for a moving bike as the array of panels need to be quite large for any decent charge and then there is the time needed for such a charge. A touring set up in summer with a trailer might be better with panels on a trailer to charge a second batter.

Can you supply a link to the kit bought ?

Batteries differ some are easier to open then others and inside some have extra insulation layers as well. For cell measuring one only has to expose the BMS with the multi connector on the end to get at the pins outs for measuring, at this stage there is no need for anything drastic. As Benjamin...