Serenelife SLSOLBK002 User Manual

The Serenelife SLSOLBK002 is a portable solar power bank designed for outdoor use, featuring high-efficiency solar panels, multiple USB output ports, a built-in LED flashlight, water-resistant casing, and a high-capacity lithium-ion battery. It supports charging via solar power or AC adapter, includes overcharge protection, and is compatible with smartphones, tablets, and other USB devices. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Charging and Operation 8. Safety Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Solar panel array, USB output ports, LED flashlight, Power button, Battery level indicator, AC charging port.

Feature	Description
Solar Panel	High-efficiency monocrystalline solar cells for charging
USB Output Ports	Dual USB ports for charging multiple devices simultaneously
LED Flashlight	Built-in bright LED with multiple modes (steady, SOS, strobe)
Battery Level Indicator	4-LED display showing remaining battery capacity
AC Charging Port	For fast charging via included wall adapter
Power Button	Turns device on/off and controls flashlight modes
Water-Resistant Casing	IPX4 rated protection against splashes and rain
Overcharge Protection	Automatically stops charging when battery is full
Carabiner Clip	Attachable clip for easy carrying during outdoor activities
Compact Design	Lightweight and portable for hiking, camping, emergencies

Installation

Unpack and inspect contents. Ensure all components are present.

Initial Charge: Connect the included AC adapter to the charging port and a wall outlet. Charge fully before first use.
Solar Panel Positioning: Place the unit in direct sunlight with solar panel facing upward for optimal charging.
Flashlight Operation: Press and hold the Power button for 2 seconds to activate the flashlight.
Device Connection: Use standard USB cables to connect your devices to the output ports.

WARNING! Do not expose to extreme temperatures. Keep away from water beyond IPX4 rating.

First-Time Setup

Power on device; check battery indicator.

Full Initial Charge: Charge via AC adapter for 6-8 hours until all 4 indicator LEDs are solid.
Solar Charging Test: Place in direct sunlight for 2 hours; verify battery indicator shows charging.
Flashlight Mode Selection: Press Power button repeatedly to cycle through flashlight modes.
Device Charging Test: Connect a smartphone to verify charging functionality.

CAUTION! Use only included or manufacturer-approved charging accessories.

Specifications

Battery Capacity: 10,000mAh Lithium-ion.
Solar Panel: 5W Monocrystalline.
Output: Dual USB 5V/2.4A (Total 4.8A Max).
Input: Solar 5V/1A; DC 5V/2A.
Flashlight: 3 modes (High, SOS, Strobe).
Protection: Overcharge, short-circuit, over-current.
Water Resistance: IPX4.
Dimensions: 5.9 x 3.1 x 0.8 inches.
Weight: 12.3 oz.
Operating Temp: 32°F to 104°F (0°C to 40°C).

Controls and Settings

Power Button: Press once to check battery level; press and hold 2 seconds to turn flashlight on/off; press repeatedly to cycle modes.

Battery Indicator: 4 LEDs (25% each) show remaining charge. Flashing during charging; solid when full.

Flashlight Modes: High beam > SOS signal > Strobe > Off (cycle). Charging: Solar (auto-detect sunlight) or AC (fast charge). Safety: Automatic shutoff when device is fully charged or in case of fault.

Connecting Devices

USB Output: Connect devices using standard USB cables. AC Input: Use included adapter for wall charging.

Ensure power bank has sufficient charge (at least 1 LED lit).
Connect your device's USB cable to either output port on the power bank.
Charging begins automatically; battery indicator may flash during discharge.
For solar charging, place in direct sunlight and ensure solar panel is unobstructed.

Tip: For fastest charging, use AC adapter. Solar charging is slower and depends on sunlight intensity.

Charging and Operation

Supports simultaneous charging of two devices.

AC Charging: Connect adapter to power bank and wall outlet. All 4 LEDs flash sequentially during charge.
Solar Charging: Place in direct sunlight. Green solar indicator lights when charging.
Device Charging: Connect devices; charging starts automatically.
Flashlight Use: Hold Power button 2 seconds to activate; press to cycle modes.
Battery Check: Press Power button briefly to see remaining charge.
Auto-Shutoff: Stops charging devices when full or after 2 hours of inactivity.
Low Power Mode: Reduces output when battery is below 10%.

WARNING! Do not attempt to disassemble or modify the unit. Keep away from children.

Safety Features

Overcharge Protection: Stops charging when battery reaches 100%. Short-Circuit Protection: Cuts power if short is detected. Temperature Control: Reduces charging rate if unit overheats.

Care & Cleaning

Disconnect all devices before cleaning. Use slightly damp cloth for casing; dry immediately.

CAUTION! Do not submerge in water. Avoid abrasive cleaners. Store in cool, dry place.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits. CE, RoHS compliant. Copyright © 2025 Serenelife; trademarks of Serenelife Products LLC. For support, visit www.serenelife.com or contact 1-800-555-1234.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Not charging via solar	Insufficient sunlight/obstruction	Place in direct sunlight for 4+ hours; clean solar panel.
Device not charging	Low power bank battery/faulty cable	Recharge power bank; try different USB cable.
Flashlight not working	Dead battery/button issue	Recharge fully; ensure proper button press (2 seconds).
Battery drains quickly	Old battery/extreme temperatures	Replace if over 2 years old; avoid temperature extremes.
Indicator LEDs flashing abnormally	Overload/short circuit	Disconnect all devices; restart. If persists, contact support.

Reset: Disconnect all devices, fully recharge, then restart.

Service: 1-800-555-1234; www.serenelife.com