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The lidl one's are quite good , 100 mile rides and have no real issue with the comfort. I have though thrown a couple away over the years simply because of wear amd tear.

Very rarely does sucha thing exist as pivate land without public right of way somewhere and esp on a commute.

From my experience 2.2v is far too low for any BMS to consider charging (unless a smart BMS where one has some input in the parameter settings ). My LG BMS on the swizzbee allowed charging at 2.9v but typically most generic china ones I have had need to be in the 3v - 3.3v range.

The only voltage the BMS will use for charging indication is only at cell level and not pack level in case anyone doesn't understand the reason why. BMS have an upper voltage (HVC) of 4.2 v - 4.25v where above 4.2v any voltage usually will be bled off . It is the lower voltage level (LVC)...

Repairing batteries is only worthwhile as a learning process and to physically see how the process works. Building repairing doesn't save money as typically a good arduino type controlled spot welder will cost around £200 - £300 without the battery power source required. One can buy cheap spot...

Working on a battery with most tools one shouldn't do much damage unless one leaves the cell group ends unprotected. Even then most thin buss material or thin bits of wire which can cause shorting will soon burn thru or glow quite bright even go bang but can be removed quite quickly. One...

What the Op hasn't done is told us the battery final voltage, as always someone likes ot blame the charger without knowing how a BMS works or it's limitations in enabling balancing. Balancing typically is carried out at approx. 100mv so any cell out of balance can take several hours if it is...

If your old charger was a simple generic two wire pin out charger the same as the new one then there is nothing wrong with the new charger if one sees 42v via it's charge lead . These chargers are dumb chargers and only charge if the battery BMS accepts a charge thus allowing the charger to...

Eve are one of the biggest makers of LFP 3.3v modules , one simply bolts them together via the buss's and nuts suppplied. Their LFPs' vary from 100ah - 305ah per module for static power storage . LFP the new name for lifepo4 still swell and need mechanical clamping to prevent them expanding...

Well done for persevering, certainly not the first or last time we here of 12 pole PAS being a waste of time. 10 always works for me .

30kg bikes again as the norm, one reason why lion was introduced to save some weight.

As a tutorial Mr H , I think it would be good to carry out the repair as it may be of interest to others such as Chris M. It isn't often we get out hands on such a battery where we have carte blanche to do with it as we wish, one assumes this is the case with this one !

For safety one would cut thick card to the other exposed cell buss's and securely tape that card in place to prevent any accidental shorting and just leave the exposed buss of the five cells to be removed. Partially treat the pack repair as a new build sans BMS so one has no wiring in the...

This thread will be useful to Chris Maluszynski as it was also much what he was thinking of . Want to learn to restore batteries. Where to start? | Pedelecs - Electric Bike Community One has to weigh up the cell age factor and config of cells to remove . Also whether one has similar aged...

One can then be 100% sure the wire sequence is correct then.

One can carefully mark the cell shape exactly on the buss , then mark three straight line cuts and dremmel thru the buss keeping to the 0v side by 1mm or 2mm. Not for d8veh as he knows what to do . A visual for others to show where to approx. to make the cuts along the tops of the dead cells...

Those laser cut buss's are or can be a real bugger to pry off , then one has to cut the cell holder to remove the cells as each side is moulded as one single unit .

What type of connection is used for the PAS ? Moulded yellow type or sm block ?

Yes , it means the hub has an internal speed sensor so a an external on eisn't needed . If the speed registered seems within normal the normal range 0 -15.5mph/25kmh then value 1 is fine .

Have you tried P14 ? As the 0 value listed is wrong and would mean the current is set for 0 power output, however as the throttle works it may not be the case.