Casio DT-X8 - Manual (Page 63)

E-61
Connecting Multiple Cradle-type Dual Battery Chargers
You can connect up to three Cradle-type Dual Battery Chargers. Doing so makes
it possible to supply power to all the Cradle-type Dual Battery Chargers using one
dedicated AC adaptor.
1. As shown in the illustrations below, remove the connector covers of the Cradle-type
Dual Battery Chargers you want to connect to each other.
Connector covers
2. Connect the two Cradle-type Dual Battery Chargers as shown below.
Connectors
3. Fix the side and bottom brackets in place with two screws on each bracket.
You can repeat the above steps to connect up to 3 Cradle-type Dual Battery Chargers.
Brackets
Side
Bottom