My internet went down right in time! Missed this! How sad!
Iām taking notes ( that are relevant to me)
1 Like
Open House closed.
Have requested for the accessā¦plz provideā¦
How was todayās open house on battery and charging
Open house battery
- Bad
- Dissapointing
- Average
- Good
- Amazing
- Mind blown
0 voters
I could not see the full event, saw only for 30-40 mins. Is there a recording or transcript available?
1 Like
They did record it . But no idea if the recording would be made Available or not.
The questions answered will be available in the form of summary. Also, Abhishek promised to answer the questions which remain unanswered over here in the forum in some format.
1 Like
Need the transcript or the video if possible.
They could upload the video on YouTube with restricted access.
The graphs were not explained properly. There no lagends what colour represents what. Otherwise it is great initiative no other brands gave done this before. Looking for more of this kind in future.
Missed this event. Please post a recording.
Hereās the recording for those who missed it:
Meeting Recording:
Access Passcode: q&t56T%z
11 Likes
Passcode please. Getting Passcode required page.
1 Like
Updated, check the post above!
5 Likes
Hey folks,
Hereās the summary of the questions and answers at the Open House. Took a little more time as we sorted through a couple of hundred questions.
Click on each of the headings to see the questions and answers.
Battery
Is it possible to upgrade the Ather 450x/450 battery in the future?
With the current pace of evolution in battery tech, itās something that should be possible. Right now, we arenāt working on an upgrade to the battery pack.
What plans do you have for old degraded batteries?
Weāre actively exploring ideas for using battery packs in their second life, for energy storage solutions. So far, there have been no battery packs that have been replaced under warranty for degradation.
Any newer technologies beyond Li-ion?
While there are newer technologies being developed, we wonāt be able to leverage them until they reach a stage where manufacturing at large scales is figured out. Li-Ion will continue to remain the best way to build battery packs at scale.
What is the buffer in the battery packs?
The Ather 450, 450 Plus, and 450X have around 10% buffer in total split between the upper and the lower end of the voltages. This is to ensure optimal performance and aging of the battery.
What would be the cost of a battery replacement in the future?
Li-Ion cell prices are going down over the years, and will continue to do so. Today, the estimated cost would be around 40k INR for a new battery pack.
Will the usage of Warp mode/fast charging degrade the battery a lot?
Weāve put in a lot of checks and balances, and extensive testing to ensure thereās no noticeable degradation when using Warp mode normally on roads. Of course, if you use the scooter only in Warp mode in ātrack-likeā conditions, there would be noticeable degradation.
Will we get to see battery health on the dashboard or during service?
In late 2020, we started showing battery health to users who opted for the Ather Health Certificate. Battery health is something that takes some time to get right - it depends on a lot of complicated factors, and most importantly, time. Batteries age with time and that is an important factor in battery health. After 450s have been on the field for more than 2.5 years now and our testing vehicles longer than that, we are slowly getting confident of our battery health numbers and we even updated 450s with the latest OTA to include battery health in the riding algorithms so the riding consistency is maintained despite battery aging. We do plan to show it to the owners, and something we are working towards.
We are seeing that an average Ather 450 is around 94% health, and none are below 88%, which is giving us a lot of confidence in terms of health and aging of Ather 450Xs, which we expect to perform even better.
Any plans to consider battery swapping. removable batteries?
Swappable and removable batteries make sense for commercial applications, where a rider would be covering hundreds of km in a day. Ather scooters are not designed for commercial applications as of now, and we believe fast charging would work better in most non-commercial applications, hence all efforts are focused on expanding Ather Grid locations across the country.
What would happen in case of a flood or if the battery is immersed in water?
The Battery is rated for IP67 which means it has been tested immersed under 1m of water for 30 mins. This covers most use cases like wading through water in a flood. However, as we do not test for a use case beyond 30 mins we cannot guarantee waterproofing in case of overnight immersion. Do note, external damages to the battery pack, etc could compromise the water resistance.
Charging
Can I connect Ather Dot/portable charger to an inverter/solar setup?
Yes, it can be connected to an invertor. Please note that the Dot/PC consumes around ~700W of power, so ensure the invertor can support it
Is it possible to make a portable fast charger?
Technically it would be possible, but there are two major hurdles. A fast charger currently costs close to 1L for the equipment and is designed to be outdoors with lots of ventilation. A fast charger is much larger than the current portable charger and is not possible to carry around in the scooter, and has higher power requirements, which works best in a fixed setting than a portable one.
What is the warranty on the Charger - Dot and Portable Charger?
The Dot has a warranty of 3 years, and the portable charger has 2 years of warranty.
Can Ather scooters be charged at public fast charging points? Would it be possible in the future?
Currently, thereās no common standard for fast charging of 2 wheelers. There is an active group of OEMs working on such a standard, and Ather is contributing significantly to the development of it. EV 2 wheelers today use a different voltage architecture for the battery and motor. The fast charging points installed by governments or other providers are meant for cars and are not compatible with Ather scooters.
Designing a converter, thatās affordable, convenient, and safe to use is not possible as of today.
At the moment, the usage of the Ather Grid points will be free of charge till 31st September 2021. If there are any changes, it will be communicated closer to that date.
Is it possible to install the fast charger at home?
If there is the availability of load and parking, then this can be explored as long as the general public is permitted to enter the premises and charge their vehicle.
12 Likes
I find this really hard to believe, especially since your dashboard says different.
The actual SOC was at 99% when the SOC shown on the dash was 100%.
I happen to see this when I had a doorstep service. And this- actual SOC of 12% when the dashboard indicated was at 0% , 12% is about 300Wh in 2.7kWh and that brings the usable to 2.4kWh which fits. This sort of means that all the buffer is at the bottom right? Or am I getting something wrong here? Or the dash is mis reporting?
I beleive the 450X does have a good buffer on both ends.
In that dashboard, we have a lot of parameters shown, some of them which are not in use anymore. What you are seeing - SoC in the BMS tab, is one such thing - a number we used earlier (pre-450 launch) but then updated it with a number generated from a better algorithm.
Actual SoC number is there elsewhere in that dashboard. We havenāt done a good job cleaning up that UI since itās for internal technician use only and they know what to look for 
4 Likes
I did see another SOC in there but that was matching with the one shown on the dash
Theres even a SOH 
but Iām assuming thatās not been updated at all. 
1 Like