In different scenarios the battery's drain rate varies. Here's how many days it may take for the battery to go from 100% to nil:
When Key is turned OFF:
Ather 450 - In 9 days
Ather 450 - appx 70 days
There is a critical battery cut-off that shuts down the battery completely so that there is no damage to the battery pack once it has discharged to zero.
The battery pack is one of the most important components of the vehicle. We have done all ARAI recommended tests to ensure it can keep up with whatever get thrown at it, and then we went ahead even further to ensure a high reliability and life.
The following tests have been done on the battery pack over the course of a few years:
The battery is protected by an aluminium casing to rule out physical damage. Also, the BMS regulates temperature and ensures optimum performance.
The battery is designed to last 50,000 km. Typically scooters run around 6000-8000 km a year, so chances are that this battery won’t need replacement for 6-7 years. Most people replace their scooter in around 4-5 years.The battery has a 3 year unlimited mileage warranty. Also, the battery doesn’t really go dead. Its capacity reduces just as a phone battery's does. Coming to the exact cost of replacement after 3 years from now, we estimate that it would be around ₹35-40,000. Having said that, Li-ion cell prices are coming down year on year, so the battery is likely to be cheaper than what we are estimating.
The battery pack is designed to last for 50,000 km, at which point it should still have enough capacity for a regular commute. Just in case you need to replace it, you can purchase a replacement from Ather. We are currently working on a battery exchange/buy-back program, to get you a new battery at a lower cost and repurpose your old battery pack. We hope to announce that once we have more clarity on it.