Car Watch reports Toyota Le Mans tech briefing meeting.
http://car.watch.impress.co.jp/docs/news/1060699.html
2017 TS050 battery system electric pressure: 815V (2016 spec: 750V)
2017 TS050 battery running possible temperature: 85 degree (2016 spec: 60 degree)
Necessary time is 4 minutes and 30 seconds to charge 8MJ.