Rechargeable external battery pack providing up to 10 hours of portable playing time for Millennium The King, Exclusive and Supreme Tournament 55 boards
The M825 ChessVolt is compatible with the following current and former production Millennium chess computers and electronic chess boards.
- M820 ChessGenius Exclusive
- M824 The King Exclusive Lasker Edition
- M826 The King Exclusive Chess960 Edition
- M828 Chess Classics Exclusive
- M830 The King Performance
- M831 The King Competition
- M850 Supreme Tournament 55
To charge the ChessVolt battery pack use the adaptor supplied with your compatible Millennium chess computer or electronic chess board.
![Millennium ChessGenius Pro [New 2024 Model] Computer](https://cdn11.bigcommerce.com/s-whdqaup27f/images/stencil/500x659/products/496/2937/m815-millennium-chessgenius-pro-computer-1__50792.1703299342.1280.1280__69436.1704816003.jpg?c=1 "Millennium ChessGenius Pro [New 2024 Model] Computer")