Confirm that the version of the custom firmware (SHFW) you are using is compatible with your Ninebot E45E model. Using an incompatible firmware version can lead to issues. heardle

Explore online forums or communities where electric scooter enthusiasts share their experiences. Members of these communities might have encountered similar issues and could provide guidance or solutions.
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Look for screws or latches: In many cases, electric scooters have screws or latches that secure the battery compartment. Check for these and use the appropriate tools for removal.
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Make sure your scooter's battery is in good condition. A degraded battery may struggle on climbs. If your scooter has a removable battery, check if there's an option to upgrade to a higher capacity battery. wordle

Many electric scooters have speed limits set in their firmware to comply with local regulations and safety standards. Modifying these limits can be difficult and may require specialized knowledge and tools. wordle

Double-check your custom firmware configuration, especially the settings related to the motor and throttle response curves. It's possible that some parameters need fine-tuning to match the new motor's specifications. fnf