If your Shark Ion Robot R85 not charging, you’re not alone. This is a common frustration that can stop your cleaning routine in its tracks. The good news is that many charging issues have simple fixes you can try at home. This guide will walk you through every step, from basic checks to more advanced solutions, to get your robot vacuum back to work.
Shark Ion Robot R85
Before we start troubleshooting, it’s helpful to understand the basics. The Shark Ion Robot R85 is a popular model known for its efficient cleaning. It returns to its docking station to recharge automatically. When the process fails, it’s usually due to a problem with the dock, the robot’s contacts, the battery, or something blocking the connection.
First Steps: The Quick Checks
Always start with the simplest solutions. These steps can resolve a surprising number of issues without any tools required.
- Check the Power Outlet: Ensure the dock is plugged into a working outlet. Try plugging in another device to confirm.
- Inspect the Dock’s Power Light: The charging dock should have a solid power indicator light. If it’s off, the issue is likely with the dock’s power supply.
- Clean the Charging Contacts: Both the robot and the dock have metal charging contacts. Wipe them with a dry microfiber cloth to remove dust and debris.
- Reposition the Dock: The dock needs to be against a wall, on a hard floor, with at least 3 feet of clear space on either side and 4 feet in front.
- Place the Robot Manually: Gently place the robot directly onto the dock, aligning its contacts with the dock’s pins. Listen for a beep and look for a charging light.
Intermediate Troubleshooting
If the quick checks didn’t work, it’s time to look a bit deeper. These steps involve a closer inspection of the robot and its components.
Performing a Soft Reset
A reset can clear minor software glitches that may interfere with charging.
- Turn the robot vacuum over.
- Locate the power switch on the side of the unit and turn it to the “OFF” position.
- Wait for a full 60 seconds.
- Turn the power switch back to the “ON” position.
- Place the robot on the dock again and observe.
Inspecting for Physical Blockages
Sometimes, the problem is a simple obstruction you might of missed.
- Check the Dock Pins: Ensure the spring-loaded pins on the dock are not stuck in the down position. Gently pry them up with your fingernail if they seem stuck.
- Examine the Robot’s Wheels and Sensors: Clean the front bumper, cliff sensors, and wheels. Any blockage here can prevent the robot from docking properly.
- Look for Debris in the Charging Port: Shine a flashlight into the robot’s charging port to check for packed lint or foreign objects.
Advanced Solutions: Battery and Hardware
When basic steps fail, the cause might be a worn-out part. Here’s what to consider next.
Testing and Replacing the Battery
The lithium-ion battery in your R85 has a limited lifespan, typically 1.5 to 2 years with regular use. Symptoms of a bad battery include very short run times and failure to hold a charge.
- Power off the robot using the side switch.
- Turn it over and remove the screws holding the battery compartment cover.
- Carefully disconnect the old battery’s connector.
- Remove the old battery and insert a genuine Shark replacement battery (model number RBAT800).
- Reconnect the connector, replace the cover, and power the robot on. Place it on the dock to test.
Always use an official or high-quality third-party battery for safety and performance. A cheap battery can be a fire hazard and might not work correctly.
Checking the Charging Dock
The dock itself can fail. The most common point of failure is the power adapter.
- Try a Different Adapter: If you have another compatible 20V Shark adapter, try it with your dock.
- Inspect the Adapter Cable: Look for fraying, cuts, or damage to the wire.
- Listen for a Hum: A working power adapter often emits a very faint hum. No sound or light on the dock suggests a dead adapter.
If you determine the dock is faulty, you’ll need to order a replacement docking station from Shark.
When to Contact Shark Support
If you’ve tried all the steps above and your Shark Ion Robot R85 not charging, the issue may be internal. This could be a damaged charging circuit board or a wiring problem inside the robot.
- Your robot is still under warranty (typically 1 year).
- You are uncomfortable opening the unit or replacing internal parts.
- You suspect an internal electrical fault after ruling out the battery, dock, and contacts.
Shark customer support can provide warranty service or guide you to an authorized repair center. Have your model number (RV850) and serial number ready when you call.
Preventative Maintenance Tips
Regular care can prevent most charging problems before they start. A little upkeep goes a long way in extending your vacuum’s life.
- Weekly Contact Cleaning: Make it a habit to wipe the robot and dock contacts every week.
- Clear the Docking Area: Keep the area around the dock free of cords, toys, and furniture legs.
- Run the Robot Regularly: Letting the battery sit completely dead for months can permanently damage it.
- Store Properly: If storing for a long time, charge the battery to about 50%, power off the robot, and keep it in a cool, dry place.
FAQ Section
Why is my Shark R85 not docking to charge?
This is usually caused by poor dock placement, dirty sensors, or low traction on the wheels. Ensure the dock is on a hard, level surface against a wall, clean the front bumper and sensors, and check that the wheels spin freely.
How do I know if my Shark robot vacuum battery is bad?
Signs include the robot dying quickly after a full charge, the charging light flashing rapidly or turning off immediately, or the robot not powering on at all even after being on the dock for hours.
Can I leave my Shark Ion R85 on the dock all the time?
Yes, it’s designed to be left on the dock. The robot has overcharge protection. However, for long-term storage exceeding a few months, it’s better to charge it to half power and turn it off.
Where are the charging contacts on the Shark R85?
The robot’s contacts are two parallel metal plates on its backside. The dock’s contacts are the two spring-loaded metal pins that stick up. Align these when placing the robot manually.
What should I do if the dock’s light is on but the robot won’t charge?
This points to an issue with the robot’s side. First, clean both sets of contacts throughly. Then, try a soft reset. If that fails, the battery is the most likely culprit and may need replacement.
Final Thoughts
Dealing with a Shark Ion Robot R85 not charging can be annoying, but methodical troubleshooting will usually find the cause. Start with the easy stuff—power, placement, and cleaning. Move on to resets and battery checks. Most of the time, you’ll find the solution is something simple like a dirty contact or a battery that’s reached it’s natural end of life. By following this guide, you can save time and money, and hopefully get your helpful little robot back to keeping your floors clean without a hitch.