Further for those interested in comparing , the lower energy...

Further for those interested in comparing , the lower energy retention of the 4680 puts the cyber truck in a bad light , there is a huge opportunity here for Anteotech's drop in silicone solution.

The Tesla Model Y AWD EPA range tests reveal that the 4680 cells have 13 percent lower energy density compared to the 2170 cells used in the Model Y Long Range AWD. While the latter has 262 Wh/kg at the cell level, the 4680 cells only provide 229 Wh/kg. Thus, the standard-range Model Y features a 67-kWh battery pack instead of the 81-kWh of the Long Range model. Still, the 4680 structural pack weighs almost as much as the 2170 pack, at 648 lbs (294 kg) vs. 681 lbs (309 kg).

The lower-than-expected energy density puts the Cybertruck's performance in a bad light, considering the pickup truck relies on 4680 cells for production. Although the Cybertruck production line seems ready to roll, the 4680 cells could hinder production start. The 4680 cells' limited availability has already kept Tesla from launching the Cybertruck production earlier, as promised. Now, the limited run of the new cells can barely supply the Model Y SR production line. Tesla needs to ramp up battery cell production for the Cybertruck.

Even so, it's likely that Tesla could not offer a 400-mile (645-km) Cybertruck as people expected. The lower energy density and limited production mean the first Cybertruck trucks rolling off the production line will be lower range. This will not change anytime soon, especially as Panasonic recently delayed the 4680 cell production start. Panasonic said that it needs more time to improve battery performance. Assuming that Tesla is ahead of the Japanese company in the 4680-cell development, the Panasonic cell energy density could be even worse than 229 Wh/kg.