The battery has low runtime. What should I do?
The initial battery charge is approximately 30%. Before first use, charge the battery completely. A full charge takes approximately 3.5 hours. Note that battery runtime is affected by the type of cleaning the vacuum is used for. Vacuuming on high pile carpet while using Boost will reduce battery runtime quicker than vacuuming bare floors. If you have more than one battery, it is recommended that you use and charge them equally.
What if the battery is warm to the touch or indicates that it's too warm to charge?
Your battery may feel warm in use as air passes through the vacuum. If it feels uncomfortably warm, stop using the vacuum and allow for the battery to cool. If the battery continues to feel warm, or the indicator lights on the handle display an error message (as outlined in the Owner's Guide), contact Customer Service at sharkclean.com/support. Batteries can get warm from use, which is not optimal for charging. When this occurs, the charger will wait for the battery to cool before it begins charging.