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@kosac11 Way stronger, I can't test uphill drives as I live in holland, most flatest country in the world, but looking at the increased acceleration...

@mk2r I got rid of those 43ah batteries, the bms is also restricted to 50amp like the soco ts battery. Now i use the niu battery next to the origina...

Did a test drive today and i am pretty pleased with the results, constant speed of 60km. The regen braking is really good, just tip the front brake le...

@yetisbey I used a kelly kls72118s controller, all the parts needed are in the box. I bought a niu 60v 29ah battery second hand. And some solde...

@kosac11 Accelaration is really good, top speed is the same as when you delimit the original controller, the plus point for this will be that the bi...

Sounds like the alarm unit, on the controller there is a yellow wire which needs 60v (70v when battery is full) to switch on, this 60v comes from the ...

@mk2r First thing the bms is also controlling the maximum discharche rate, so if it exceeds this it will shutdown the output. In the first trial ...

@mk2r Both batteries have their own bms still in place so the charging process is very simple, its nothing more then a power supply supplying almost...

@mk2r Balancing is meant for keeping the cells at a good level during a lot of charging cycles, otherwise one cell group could be higher, cuttin...

@mk2r The niu battery works flawlessly in parallel with the original soco battery, its exactly the same end voltage, only slightly more Ah rating. T...

Keep in mind that if you have a higher voltage on the secondary battery it will charge up the original. I really happy with the niu battery its such a...

Yes i added a second battery connected in parallel with the stock one, i placed the connections in the bottom below the battery tray, so controller ha...

I have finished the fitment of the controller, I ordered a sabvoton but they send me a kelly instead, I don;t want to wait for it to ship back and the...