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I saw the Risun ones when I bought the 48v 250w tsdz2 and thought they looked quite good value , however the AliExpress ones are fairly similar and and they all look like shimano copies of the lower end budget HDB's so should generally do a good job.

A replacement/new battery will solve the issues or choose less hilly routes , it is a simple fact of science that batteries will age, once they age they simply can't deliver the performance as when they are new. Internal cell resistance and heat are part of the ageing process of a battery and...

If it only occurs on hill climbs then battery voltage sag is the cause, when the voltage sags it hits the battery BM LVC so the power will cut out. A fully charged battery can usually deal with it but once the battery voltage reduces thru use then the likelyhood is and older battery will...

I would be inclined to stay away form zoom /tektro brands. I had tektro on my Ute cargo bike but they were fairly poor braking wise no matter what I did to try and imptove them, in the end replaced with shimano 4 pot front and 2 pot with disc upgrade rear for far better braking.

Same supplier and price with 3 pin SM connector . GUSTAVO E-bike Brake Hydraulic Disc Cut Off Power Brake SM Waterproof Plug Ebike Scooter Front Rear Brakes - AliExpress

They look pretty much like clones of the similar Shimano entry hdb's so are likely quite good. If one buys 2 pin brake connector in error they can also be used with controllers with 3 pin connectors, simply omit the 5v ( insulate the 5v) from the 3 pin and solder up the other two. Cut offs...

Same here all old batteries have cells dismantled for torch use or other smaller 12v packs . My pair of dolphin batteries and an old Sam 22f pack (all 36v) still hold good voltage but sag with heavier current draw so are used as DC supplies for my beekeeping electric centrafuge extracator which...

I find my batteries don't like salt , they for some reason die :eek:.

Yes, you should have little problems . It will be a straight swap so £90 not down the drain.

That's one good thing about this forum , there are users here who will call out bad advice or prompt advice in the right direction.

Before I dispose of a battery , I try and find out the reason for the poor performance but in most cases I already know the batteries short comings from past use and diagnosis.

Yes pics are best to show us what you have in the way of a connector.

One needs to measure the ten cell voltages at both charged and discharged levels to see what is occuring, one way or another one should give an idea as to what is wrong.

greenedge display - eBikes Direct (e-bikesdirect.co.uk) £90. For that money , I would replace all the electronics with a new KT controller kit set up for about the same money. edit: Probably the one already found as mentioned in #1, best option is the KT route and one can get a better...

Try ebikesdirect.co.uk to see if they carry a spare part. The disply used is an Intelligent model .

Exactly so no point on users jumping on the derestiction hobby horse as in this case it has nothing to do with the accident or bike in use.

602 Internal battery pack error while charging Unplug the charger from the battery pack. Restart the eBike system. Plug the charger into the battery pack. If the problem persists, contact your Bosch eBike dealer.

Take it to Halfrauds (if under warranty) or a bosh dealer to plug in for a diagnostic report . 532 is possibly battery contact error with the upper and lower contact points . I have seen a utube film of such a code error and possible remedy. 602 is an internal battery error whilst charging...

OEM mid motors very rarely have a throttle option (Wisper I think is one that does ?) , only kit mid motors usually give this option. Mid drive motors have an integrated controller and is part of the main motor assembly it self, in your model not too disimilar in design to a BBS01 the...

If one gets a better range and less sag in lower power/PAS modes then one can ascertain that the battery is worn but useable however one may only see this if the controller uses current control where current is incrimental with PAS selection. If speed control is used then current will be much...