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2,8v is quite a deep discharge = 39.2v for 14s/52v, to be kinder to the cells and a longer life cycle look at 3.3/3.4v = 46.2/47.6 end voltage.

Op is now using insulting tones to get his point over, not very clever in my view. Most dealers aren't allowed or can't repair batteries. Manufacturers /battery makers often won't entertain repair as it is not cost effective. Options are to send it to specialist repairer like BGA/Insat or try...

GSM external dual volt controller use 36 or 48v or use both on along ride one at a time. Easy to replace controller if an issue occurs and also advantage of fitting external pas if the internal one fails.

Hall replacement pdf. Requires motor to be opened, work can be done with motor in the rim. http://www.ebikes.ca/documents/HubMotorHallSensorReplacement.pdf

Four of the halls generally look fine. Red to Black 4-5v good. Black to Y& Blue both are good, if you spin the wheel to fast you get about 2.5v which is the average voltage of 5v. If you do the test again by turning the wheel very slowly you will se the voltage switch between 0 & 5v. Green is...

You won't get Tongsheng branded one as it will be OEM supplied item, however as Woosh say's any generic model will work follow the cable and check how many wires there are if only three then any generic 3 wire twist throttle will work. Some throttles with extra functions have more wires so...

We need a pic to help to try and id item required.

The pic of the controller connectors are not clear at all, kt controller (dual mode) has 5 wire connector for lcd .

You can cut and paste quotes all day long you will get caught for duty & handling fees whether you get caught for vat @20% no one knows. If your lucy no, if not yes.

C13 & C14 are for regen braking or pas tuning signal strength, won't have any bearing on throttle lapse/delay.

Any multi meter will work get one with the continuity beep feature for wire testing. Only problem I find are the probes wiring usually detaches so you have to bodge a repair to resolder the wire, I have had the probes wires fail at both ends of the probe. The wire twists on the top entry so use...

Having renewed two major components and knowing batteries work on another bike there is conflict or fault elsewhere. Try disconnecting the throttle, pas and brake sensors. Reconnect pas only and see if bikes cuts out, if ok connect throttle and repeat again. Finally connect brake sensors. If...

MJ1 has more capacity then PF so more range, PF less capacity but better under load so less voltage sag at moderate load both are v.good cells. Both whale batteries use 6p configuration If using more then 20a load use 30Q or VTC6. Typically expect to see 0.3 - 0.5v sag < 5a loading above this...

Yes, rear 350w 36v 270/270rpm winding, my kit come from elifeshop2012 on ebay. I only used the hub as I had KT dual volt 20a controller and lcd3 etc,etc in use with Q128c so just swapped motor wheel, I find the Yose hub to be better esp with no power.

Does bike have pas sensor , throttle and brake cut outs.

Controller amp rating and battery cell spec,s. Under what riding circumstances does the cut out occur ? In the rain, fast riding, hill climbing or over bumpy terrain. An intermittent short may also be the cause so throttle or pas could be at fault check wire continuity. You will have to be...

Check the battery docking wiring at the pin outs to ensure good contact, check soldering to pins inside the docking unit. If it does it with two batteries would be coincidence if both were faulty, also look at battery docking pin contact is there any pitting or burning which might indicate poor...

Like a lot of D/D hubs you are finding their Achilles heel, torque at low speed for inclines. Wound for high speed they can't match geared hubs for low end torque, another controller with higher amp load may help if the cells ac handle one or you could try a shunt mod on the controller but need...

From China expect to pay duty if shipping is Fedx , DHL. They usually send invoice a few weeks after delivery, expect £20 -£30.

29e didn't fair to well after two uses of derestricted GSM drive at 18/20a, That was about 3 years ago also been running 29e on 20a bpm unrestricted and over time cells can't handle high draw. I can still get up to 40 miles use out of two 29e's on flat terrain but they don't like more then pas...