Thank you for sharing your experience. We’re sorry the battery arrived later than expected and missed the Christmas timing. Regarding the charging level, we recommend leaving the battery on charge a little longer to see if it reaches a full charge. If it continues to stop at three bars, our customer support team would be happy to take a closer look. The battery is covered under warranty, and we’ll make sure an appropriate solution is provided if there’s any issue. We’re glad to hear it’s working well for your dad, and we appreciate you taking the time to leave feedback.