Tesla, charging of 4680 batteries is slower than expected

Tesla, charging of 4680 batteries is slower than expected


In recent weeks, Tesla has begun to deliver to its customers the first examples of Tesla Model Y made with the new cylindrical batteries in 4680 format; the new batteries, mainly used in Tesla's new factory in Texas, promise much shorter charging times thanks to their particular design, but at the moment it does not seem that the charging times at the Supercharger columns have changed much.

The first lucky ones to receive a Tesla Model Y equipped with 4680 batteries were able to test the recharging times: 32 minutes were needed for the V3 column to bring the batteries from 0 to 80% charge Supercharger with 250 kW of power, equal to 362 km of autonomy. Colin Calvert on Twitter transformed the data into an easy-to-read graph that shows us how the charging power has steadily dropped from the initial 250 kW to just over 50 kW when the car has reached 80% charge. To bring the car back to 97%, 52 minutes of recharging were required, equal to 434 km of autonomy, while if you are satisfied with stopping at 50%, equal to about 200 km of autonomy, 12 minutes of charging are sufficient. .

These results are absolutely in line with what we have seen on the market for a long time, and far removed from certain competing proposals based on 800 Volt electrical systems: the E-GMP platform comes to mind, the one that Hyundai used to make the Ioniq 5 and Ioniq 6, which thanks to the 800 Volt system is able to charge from 10 to 80% in 18 minutes, exactly half the time compared to what it takes by Tesla.

Tesla, however, is famous for having improved the charging capabilities of its cars more than once thanks to software updates released 'over-the-air' (OTA), so it cannot be excluded that in the coming months the charging times of the new Model Y equipped with 4680 batteries can significantly improve.

Tesla tries to help Texas grid amid heat wave with its cars while it can with Powerwalls

Tesla is trying to help Texas’s electric grid again amid another heat wave with its electric cars until it can with Powerwalls as it lobbies for some rule changes.

Texas has a notoriously fragile grid that is having issues supporting increasing peak electricity demand.

The issues have mostly come in the winter amid cold fronts, but the state’s electric grid has had issues this year with early heat waves.

The first one hit as soon as May, and it tripped six power plants in the state.

At the time, Tesla introduced a new way to try to help out with a new in-car alert to Tesla owners in the state encouraging them not to charge between 3 p.m. and 8 p.m. if they can avoid it:

A heat wave is expected to impact the grid in Texas over the next few days. The grid operator recommends to avoid charging during peak hours between 3pm and 8pm, if possible, to help statewide efforts to manage demand.

Texas is now being hit by another heat wave, and Tesla has brought back the alert yesterday, and it is expected to be active for the next few days since the temperature is well over 100F (38C).

But Tesla would prefer to help with its Powerwall owners instead of just its electric cars.

Its electric cars represent a partially controllable load – meaning that Tesla can influence whether they add a load on the grid or not.

Powerwalls can actually send electricity back into the grid when needed, like right now. That obviously would have an even greater impact.

As we reported last month, Tesla has launched a virtual power plant demonstration with Powerwall owners in Texas, and the goal is to demonstrate the value to ERCOT, Texas’s electric utility regulating body.

The company needs ERCOT to change some rules in order to compensate those homeowners to use the power in their home battery packs. Right now, they are not being compensated, and it obviously reduces the appeal of helping the grid after investing in your own home energy system.

Nonetheless, Tesla managed to convince 64 Powerwall owners in Texas to join the demo as of last month, and it has hundreds of Powerwalls that could help the Texas grid.

FTC: We use income earning auto affiliate links. More.

Subscribe to Electrek on YouTube for exclusive videos and subscribe to the podcast.