Sounds a very good price but if they are rubbish then yes
Whats the guarantee, BMS included? Size, weight?
BMS would be included, heavy gauge wiring would be used to just make life easier all around, and not that hard, stiff junk either.
The cheaper packs, you can pull 20Amps out of them.
There is a more expensive variant planned, which is built out of cells with a 15C peak discharge. Obviously far more powerful.
I would be able to match the Chinese sellers $ for $ if it weren't for the punitive charges of VAT and Customs into the EU.
Shipping will be vastly improved, courier and registered post taking 2-5 working days will be offered. This reduces the cost of shipping from around $90 to around $50. Shipping time is slashed from 6 weeks to under 1 week.
Guarantee is that if you can show that the battery don't put out 20Amps or whatever is offered, then you have 60 days to return.
If you weigh 30 stone and go 11 MPH....no return. The quality guarantee pertains to the discharge rate and the build quality....not how fast you go.