PWS-300 - Power bank Steren - Free user manual and instructions
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| Product Type | External Battery / Power Bank |
| Brand | Steren |
| Model | PWS-300 |
| Battery Capacity | 3000 mAh (Lithium-ion) |
| Input | Micro USB, 5V / 1A |
| Output 1 | USB-A, 5V / 1A |
| Output 2 | USB-A, 5V / 2.1A |
| Charging Time | Approx. 3-4 hours |
| LED Indicator | 4 LEDs showing battery level |
| Dimensions | 95 x 45 x 22 mm |
| Weight | 150 g |
| Color | Black / White |
| Compatible Devices | Smartphones, tablets, cameras, and other USB devices |
| Safety Protections | Overcurrent, overcharge, short-circuit, and temperature protection |
| Maintenance | Wipe with a soft, dry cloth; keep away from water and heat |
| Repairability | No user-serviceable parts; recycle appropriately |
| Included Accessories | Micro USB cable, user manual |
Frequently Asked Questions - PWS-300 Steren
How do I recharge the PWS-300 power bank?
Plug the included micro USB cable into the input port and connect the other end to a USB power source such as a wall charger or computer. The LED indicators will flash to show the charging status. When all four LEDs stay lit, the power bank is fully charged.
What devices can I charge with this power bank?
The Steren PWS-300 is compatible with most devices that charge via USB, including smartphones, tablets, Bluetooth earphones, cameras, and portable game consoles. It provides a standard 5V output with up to 2.1A for quick charging.
How do I know when the power bank is fully charged?
The LED battery indicators show the charge level. While charging, the LEDs will light up sequentially. When all 4 LEDs remain solid, the power bank has reached 100% capacity and you can unplug it.
How long does it take to charge the power bank itself?
The charging time depends on the power source. With a standard 5V/1A adapter, it takes approximately 3 to 4 hours to fully charge the 3000 mAh internal battery. Using a higher-current charger may reduce the time slightly.
Can I charge my phone and tablet at the same time?
Yes, the PWS-300 has two USB output ports with shared output current. You can charge two devices simultaneously, but the total output is limited to 2.1A, so slower charging may occur when multiple devices are connected.
How many times will the PWS-300 charge my smartphone?
The 3000 mAh capacity will typically charge a smartphone with a 2500 mAh battery about 1.2 times, or a device with a 1500 mAh battery almost 2 times. Actual charging cycles vary based on device condition and usage.
Is it safe to leave the power bank charging overnight?
The PWS-300 includes overcharge protection, which automatically stops charging when the battery is full. It is generally safe to leave it plugged in overnight, but we recommend unplugging once fully charged to maximize battery lifespan.
What do the LED indicators mean?
The four LED lights represent the remaining power: 25%, 50%, 75%, and 100%. A blinking LED during discharge indicates low battery, so you should recharge the power bank soon.
How should I clean and maintain the power bank?
To clean the PWS-300, disconnect all cables and use a soft, dry cloth to wipe the exterior. Avoid using liquids, abrasives, or compressed air. Store the power bank in a cool, dry place away from direct sunlight and extreme temperatures.
Does the power bank come with a warranty?
Steren provides a limited warranty for the PWS-300. The typical warranty period is 12 months from date of purchase. Keep your receipt and contact Steren customer service for warranty claims or support.
User questions about PWS-300 Steren
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USER MANUAL PWS-300 Steren
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Product information
Brand : Steren
Model : PWS-300
Category : Power bank