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All are old and none are new, all bought quite cheaply or built up by my self. As a form of transport they are cheap and kinder to the planet.

Don't shoot the messenger, I know it was me who advised to get the KT and they work as I have used them on quite a few different bikes and currently have the systems on two bikes and will also be on a third one which I haven't started the build yet but in time will post a thread on it from a...

BB is perfect though you may have to carefully dremmel or file any shell interior over weld down if the TDSZ doesn't pass through easy, a good dob of grease will also help to slide in. No need to fit sensors if a throttle isn't used .

:cool: A happy SWIMBO, kudos to you.

You will notice the extra watts (up to 750w ) on inclines in assist level 5 or with a throttle, it will be pretty effortless. Controller is 20a rated x 48v nom voltage gives 960w total out put but by the time you factor in wiring/hub efficiency the power at the hub wheel is actually about...

Avarice/greed and the human races so called right to think they can do what they want has caused the worlds problems for many hundreds of years without a though for the planet, it's destiny and ours is truly on the verge of more then this minor hick up.

22650 is not a popular ebike cell in use, 18650 has always been king until now. 21700 now appearing. Finding the specs for the cell might shed some light on them but don't expect them to be a great cell. The battery is only 3P and low mah at 7500, the cell current will likely be quite low and...

If you can set the lipo charger to 1s then no issue and safer, not many would have a lipo charger to hand.

You can try charging the two low groups manually at very low current < 500ma & voltage less then 5v, the most common way is to use an old phone charger by cutting off the charge jack and soldering a pcb strip pin to each wire end then heat shrinking each end leaving 5mm of pin showing. Charging...

Sadly when lockdown or something relating to normality then the world will go back as it was before and pollution will rise again, industry doesn't give a damn about the world and the climate. Now is the time to bring forward banning ICE vehicle much earlier then government's have so far proposed.

Aliexpress are a bit like ebay but much bigger, I have had no issue with any of the many purchases I have made via them. Three or four times I have been refunded with no quibble. If you had gone with the Li-on UK one then you may have had other expenses for new controller etc if they didn't play...

Lifepo4 = Lithium iron phosphate, 3.2v - 3.65v voltage range. Li-on = Lithium ion, 3.2v - 4.2v voltage range. Li-po = Lithium polymer, 3.3v - 4.2v voltage range though 3.6v is a safer lower voltage due to the instability of the chem used. Top to bottom they are in order for most stable...

I'm not sure you can use a generic battery as the original has 5 pin outs so it suggests some comm's may be occurring between BMS & controller. I may be wrong someone else may know for sure , Flecc may possibly know.

Changing from Lifepo4 to Li-on isn't straight forward, the former uses higher discharge rates then Li-on so you would really need a new controller and display and probably some re-wiring of connectors. The Lifepo4 controller could age the Li-on cells a lot quicker, it all depends on what the...

Sjpt is muddying the waters by suggesting the battery is Li -po which it isn't. The battery is Lifepo4 or lithium iron phosphate it is the safest form of lithium chemistry, the iron phosphate unfortunately adds to the weight as does the extra cells. Unlike Li-on or the slightly riskier Li-po...

Are you thinking of replacing the original battery or using another in parallel ?

These lifepo4's look pretty much 99.99% like a match, though are from China via Aliexpress. Problem is, if a fault occurs you are stuffed and duty/tax will be liable bumping up the price another £30 - £50 or so...

It sounds like Declan had the battery case re-celled with new ones.

Finding the exact battery/case to fit may not be easy unless you can try Ebikes direct or ebikes4u. The four pin outs means that there is nothing special abut the electronics. The cost of changing the battery to li-on and new controller etc will be in the region of about £300 - 350 pounds for...

The only time you have complete control of power is with the PAS setting in 0 or off and only your physical input as the source. The hub will kick in with power on any setting above 0 this is how they work, the lowest assist usually giving lowest power ranging up to high power in highest assist...