Genuine Husqvarna Automower Battery Holder 2020 replacing old type. Fits to 430X, 440, 450X*, 520, 550*, 520 EPOS and 550 EPOS*.
If replacing old type battery with new you will need to purchase a new battery loom (535018401) to connect the battery to the mower main board.

*These mowers have twin batteries, please ensure that two batteries installed in the mower are of the same type.