# Battery

4680 cells, an 800 V pack, and a capacity Tesla has not published.

## What it is

The pack is described as 4680 cells in a high-power chemistry with aluminium cans, side cooling jackets with a single pass of coolant, a tailor-welded titanium upper plate, and an aluminium lower plate. Voltage is given as 800 V, with 800–1,000 V also quoted.

Capacity is not disclosed. Reports say well over 100 kWh and about 150 kWh. The smaller range versus 2017 is described as a weight-driven decision to drop the long-range pack.

Figures below come from Tesla posts or from engineers speaking to outlets. Where sources disagree, the spec sheet says so.

Pack layout. A simple diagram of a flat pack with cells in the middle, a plate above, a plate below, and coolant moving across once.

## Open questions

> Not yet published by Tesla. No Tesla document in these sources states a kilowatt-hour capacity.

Canonical: https://roadster.news/technology/battery/
Sources: https://roadster.news/sources/