48V/3.2V = 15 (blocks), 15 blocks x 120 amp hours x 8 yuan = 14,400 yuan.
The term 1 watt hour appears to have been used a long time ago and is calculated using amp hours * battery voltage. For example: a 10ah lithium iron phosphate battery, 10A*3.2v=32 watt hours.
If I make this battery, it can weigh less than 4 kilograms. It is made with 18650 cell lithium battery, one cell weighs about 50 grams. If it is manufactured with 2000 mAh batteries, 65 batteries are required. Total weight = battery weight + packaging material and circuit protection board weight = 50*65 + packaging material and circuit protection board weight = 3250 grams + packaging material and circuit protection board weight of. the circuit protection board is ≤4000 grams