Schumacher 12V Lithium Booster and Power Bank with Wireless Charging - SL473
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Product Information
Full details
The Schumacher SL473 is a compact 12V lithium jump starter and power bank designed for drivers needing on-the-go charging and emergency assistance. Its advanced technology provides robust starting power, even for deeply discharged batteries in cold conditions, and doubles as a portable charger for mobile devices with wireless and USB-C options. While versatile, its primary jump-starting capability is limited to 12V systems.
All features
| Model Part Number | SL473 |
|---|---|
| Brand | Schumacher |
Extended Product Information
FAQs
What size engines can the SL473 jump-start?
The SL473 is designed for 12V vehicles, typically including most cars, motorcycles, and SUVs. It is not intended for larger diesel engines or heavy-duty equipment.
How long does it take to fully charge the SL473?
Full charging time can vary depending on the power source, but typically takes between 4 to 6 hours via USB-C.
Can I charge my phone while using the SL473 to jump-start a car?
No, it is not recommended to use the power bank features (wireless or USB-C charging) while actively jump-starting a vehicle. Focus on the jump-starting process first.
How many times can I jump-start a car on a single charge?
The number of jump-starts depends on the condition of the vehicle's battery. A fully charged unit can typically provide multiple jump-starts for a moderately discharged battery.
What is the operating temperature range for jump-starting?
The unit operates best in moderate temperatures but includes a Pre-heat mode to assist starting in conditions as low as -4°F (-20°C).
Does the SL473 come with a warranty?
Please refer to the product manual or Schumacher's official website for specific warranty details, as these can vary.
Is the USB-C port for input or output?
The USB-C port on the SL473 serves as an input for charging the unit itself and as an output for charging other devices.
Troubleshooting
Unit will not turn on
Ensure the unit is charged. Connect it to a power source via USB-C and check if the LCD screen lights up. If not, try a different USB-C cable and power adapter.
Jump start fails to start the vehicle
Verify the clamps are securely connected to the correct battery terminals. Ensure the unit is charged. Try activating Pre-Boost or Pre-heat modes if applicable. Check if the vehicle battery is severely damaged or incompatible with the unit's output.
Wireless charging not working
Ensure the device being charged is Qi-compatible and placed correctly on the charging pad. Check that the SL473 is powered on and adequately charged. Remove any thick cases from the phone that might interfere with charging.
Device overheats during use
Disconnect the unit immediately. Allow it to cool down in a well-ventilated area. Check for obstructions around the unit's vents. Ensure you are not exceeding the recommended operating times or conditions.
Reverse polarity warning light is on
Disconnect the clamps immediately. Double-check that the RED clamp is connected to the POSITIVE (+) terminal and the BLACK clamp is connected to the NEGATIVE (-) terminal of the battery. Reconnect properly.
Pros and Cons
Pros
- Compact and portable design for easy storage.
- Offers both jump-starting and power bank functionality.
- Pre-Boost and Pre-heat features enhance cold-weather starting.
- Wireless charging adds convenience for compatible devices.
- Robust safety features provide peace of mind.
- Durable construction with included storage case.
Cons
- Primarily designed for 12V systems; not suitable for larger engines.
- Battery performance may vary depending on the vehicle's battery condition.
- Wireless charging speed may be slower than wired charging.
- Requires periodic recharging to maintain optimal readiness.
- LCD screen may be less visible in direct sunlight.
Setup, Compatibility & Care
Initial Setup & Charging:
- Before first use, fully charge the SL473 using the included USB-C cable and a suitable power adapter.
- Connect the USB-C cable to the device's USB-C input port and plug the adapter into a wall outlet.
- The LCD screen will indicate the charging progress. Allow the device to reach 100% charge.
Compatibility:
- Jump Starting: Designed for 12V lead-acid automotive batteries. Not suitable for 6V or 24V systems.
- Power Bank: Compatible with most Qi-enabled devices for wireless charging and any device with a USB-C input.
Jump Starting Procedure:
- Ensure the SL473 is adequately charged.
- Connect the RED clamp to the positive (+) terminal of the dead battery.
- Connect the BLACK clamp to the negative (-) terminal of the dead battery or a suitable grounding point on the engine block.
- Press the Power button on the SL473.
- Attempt to start the vehicle. If it doesn't start, wait 30 seconds and try again.
- Once the vehicle starts, turn off the SL473 and disconnect the clamps in reverse order (BLACK first, then RED).
Care and Maintenance:
- Store the unit in a cool, dry place, ideally within the included storage case.
- Recharge the unit every 3-6 months, even if not used, to maintain battery health.
- Clean the exterior with a soft, damp cloth. Avoid using abrasive cleaners or solvents.
- Keep the battery clamps clean and free of corrosion.