Search results

Another option to not leaving a battery fully charged is to charge it fully allowing balance to take place then ride the bike for 5 or 10mins to bleed or some of the top voltage, this will be good for the battery cells.

You will need D/D hub with a winding of 400 -500 rpm for that speed about 35/40amps and a very big battery capable of at least double the current. For more speed you need a faster wound rpm hub or more voltage.

You can use a12/24v automotive bulb to reduse individual cell voltage and yes connect it via the sense wire connector as you have for manually raising a group or direct off the cell group concerned, It wont take long for 0.1v to decrease. Solder a strip pin ( pcb strip pins) to each of the...

P1 84 I used for my Yose and Bafang Cst. Ideally if a hub doesn't work correctly on PAS you shouldn't begiving the controller full current using the throttle unless you wan t ot fork out again for another controller. P1 set wrong also affects correct speed read out compared to a GPS reading...

Measure the battery voltage reading after it has been charged, this might tell us something about the state of said battery.

Is this what you are after ? You can buy the dust cap on its own but perversely its cheaper to buy the socket as well...

Charge the battery then measure the voltage about an hour later with a meter to get an exact voltage reading, Red/Green lights tell you little except battery is or isn't charging. Once a known voltage figure is known then it might be possible to ascertain what may be the issue.

Also check that the Crown race is fitted correctly, possible it may have been omitted which I wouldn't put past it being a Halfrauds bike. The Crown race sits at the very base of the fork steerer and is the part the bottom baring glides/rotates on.

Don't forget any kit from China will incur vat/import duty based on the stated value inc p&p and a handling charge.

I use gear oil like hypoid 90 and gently wipe off excess, it's a lot cheaper then the potions in tiny bottles the bike traders want to sell you.

Price alone is certainly a killer for me as are existing new cars, I have yet ever to own a new car. The newest being 3 years old when I bought my first turbo engined car in the mid 80's.

Batteries if heavy and not SLA may well be lifepo4/lithium iron phosphate, if it is lifpo4 you can't use lion charger as the voltage is totally different.

Tbh I don't think we will see much difference to what is already being used in lithium cells, it's easy for them to fudge data so we don't really know what we are looking at. It all looks double dutch to me, I can't see this coming to the market. Their is no info on actual cell capacity used or...

On all my batterie soft packs I run separate balance taps so I don't need to try and disconnect the BMS, it is possible with hard case packs but not very practical. If cells become unbalanced it may be as Andy has said cells may be unmatched in a P group/some weaker or having a higher IR, some...

Tbh knowing some of the cells are self discharging then I doubt it will remain balanced at all, so you might as well continue going to 4.2v per cell. Because chargers only use cc/cv they can't regulate cells voltages, these can only remain stable and balanced if all are good to start with and...

The battery has two sleep modes for protection during storage and low voltage use, read the manual to see how to reactivate from hibernation/sleep mode sometimes it requires the on button to be held for 10 seconds or more. Otherwise if the battery is known to be in a discharged state (best...

Going back to #19 can you show a pic of the chargers internal pcb.

How long did the 4.1v balance maintain it self after wards without further intervention ? A lower charge current will be better for cell life and should be for balance (when not making use of the BMS balance feature) as it is a lower current being introduced so less of a rush for voltage to...

Blown internal fuse, I assume Bosch use one. Did the battery short/spark ?

It depends under what criteria used did the 99% retention of capacity occurred, it the charge/discharge current known ?