It sounds like your battery might be facing a few common issues. Firstly, check if the battery terminals are clean and securely connected. Loose connections can lead to poor charging and discharging. Secondly, assess the charging system. Ensure that the charger is functioning correctly and providing the appropriate voltage and current for the battery. Overcharging or undercharging can both affect battery performance. Lastly, evaluate the battery itself. If it’s old or damaged, it may no longer hold a charge effectively. Consider testing the battery with a multimeter to check its voltage and capacity. If it’s significantly below its rated values, it might be time for a replacement. Troubleshooting these areas should help identify and resolve the issue with your Power Sonic battery.