I replaced both 450X batteries with genuine batteries. What should I check if performance is still wrong?

Recommended answer

Confirm both batteries are the correct variants for the mower article number, fully charge the mower, and compare runtime with its normal history. If the mower still reports abnormal battery behaviour, have battery diagnostics and charging-system checks performed rather than repeatedly replacing parts.

Verification: Conservative manufacturer-aligned guidance

Exact repair steps can vary by model and software version. Confirm the exact mower before replacing parts.

Related repair guide

Husqvarna 450X: I replaced both 450X batteries with genuine batteries. What should I check if performance is still wrong

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