36V 30AH LiFePO4 Battery with BMS + Charger.
300-180-140mm - 15 kg. Paid 735 $ - Made a sturdy, leak-proof aluminum 1/8" case for it (value 100$) than can be given with it.
Can be used on any electric mobile project such as recreative vehicule RV, electric or solar bike, sailboat, etc.