Between 150 and 450. 72 volts is made up of 6 12 volt batteries. A single battery is 12 volts. This is only the voltage of a single battery. If you want to replace a large capacity battery, this refers to the battery capacity. Electric vehicle batteries are typically 12 volt amp-hours to 35 amp-hours, the larger the capacity, the higher the price. The price of a single battery is between 150 and 450.
Of course, companies are different, the quality may be different, and the prices may also be different. You can check and compare online.
How to buy electric vehicle batteries
1. Check whether the panels of electric vehicle battery products are complete. Including the manufacturer's name, product specifications and models, date of manufacture and trademark; check if the inte marksrns and externals are consistent, especially if the body of the product has eye-catching logos and production dates.
2. Pay attention to the appearance of the electric vehicle battery. Check for warping, cracks, scratches and signs of leaking. Battery terminals must be clean, free of rust and clearly marked.
3. Pay attention to the rated capacity listed on electric vehicle battery products. The larger the nominal capacity indicated on the battery, the longer the battery discharge time. It is better not to buy batteries without nominal marking, but to check whether they are specially designed for electric vehicles.