1. Bubuka
Thank you for choosing the Sandberg Solar Charger 21W 2xUSB+USB-C. This device is designed to provide portable power for your mobile devices using solar energy. It features a 21W solar panel and a built-in battery for stable power output, ensuring your smartphones and other USB-powered gadgets remain charged while outdoors or away from traditional power sources. This manual provides essential information for the safe and efficient use of your solar charger.

Image 1.1: Sandberg Solar Charger 21W in retail packaging.
2. Eusi Paket
Punten parios yén sadaya barang aya dina pakét anjeun:
- Sandberg Solar Charger 21W (Model 420-55)
- Kabel Ngecas USB
- Manual pangguna (dokumén ieu)
3. Setélan
Follow these steps to set up your solar charger for optimal performance:
- Unfold the Solar Panels: Gently unfold the solar charger to fully expose all solar panels. Ensure they are flat and facing upwards.
- Position for Sunlight: Place the unfolded solar charger in direct sunlight. For best results, angle the panels directly towards the sun. Avoid shaded areas, as even partial shading can significantly reduce charging efficiency.
- Sambungkeun Alat Anjeun: Use a compatible USB cable to connect your smartphone, tablet, or other USB-powered device to one of the available USB-A or USB-C ports on the solar charger.
- Muatan Awal: It is recommended to fully charge the internal battery of the solar charger via a wall adapter (not included) before its first solar use, especially if the device has been stored for an extended period. This ensures the internal battery is ready to provide stable power.

Image 3.1: The Sandberg Solar Charger 21W unfolded, ready for use.

Image 3.2: Connecting a smartphone to the solar charger for charging.
4. Parentah Operasi
The Sandberg Solar Charger is designed for ease of use. Here are key operational guidelines:
- Ngecas Surya: When exposed to direct sunlight, the solar panels will convert solar energy into electrical energy, which is then stored in the internal lithium polymer battery. The built-in battery ensures a stable power supply to your connected devices, even if sunlight fluctuates.
- Ngeusi batre alat: Connect your device to one of the USB-A or USB-C ports. The charger supports Quick Charge 3.0 via USB-C for faster charging of compatible devices. The charger will automatically detect and deliver the appropriate current to your device.
- Indikator ngecas: The charger features LED indicators (refer to the product diagram on the device itself for exact location) that show the charging status of the internal battery and indicate when solar power is being generated.
- Kaayaan optimal: For the fastest solar charging, ensure the panels are clean and positioned perpendicular to the sun's rays. Performance will be reduced on cloudy days or in shaded conditions.
- Tahan cai: The charger is designed with water resistance, making it suitable for outdoor use. However, avoid submerging the device in water or exposing the ports to heavy rain for extended periods.

Image 4.1: The solar charger is ideal for outdoor activities like hiking.
5. Pangropéa
Proper maintenance ensures the longevity and efficiency of your solar charger:
- beberesih: Usap panel surya sacara rutin nganggo kapas anu lemesamp cloth to remove dust, dirt, or debris. A clean panel absorbs sunlight more efficiently. Do not use harsh chemicals or abrasive materials.
- Panyimpenan: When not in use, fold the solar charger and store it in a cool, dry place away from direct sunlight and extreme temperatures. Avoid storing it in environments with high humidity.
- Penanganan: Handle the charger with care. Avoid dropping it or subjecting it to strong impacts, which could damage the solar cells or internal components.
- Perawatan batré: If storing for extended periods, ensure the internal battery is charged to approximately 50-70% capacity. Recharge it every 3-6 months to prevent deep discharge and prolong battery life.

Image 5.1: The folded solar charger is compact for storage and transport.
6. Cara ngungkulan
Upami anjeun ngalaman masalah sareng pangisi daya surya anjeun, tingali masalah sareng solusi umum ieu:
- Alat Teu Ngecas:
- Ensure the solar panels are in direct, unobstructed sunlight.
- Check that the USB cable is securely connected to both the charger and your device.
- Pariksa yén port ngecas alat anjeun bersih sareng henteu ruksak.
- Confirm the internal battery of the solar charger has sufficient charge.
- Ngecas Lambat:
- Charging speed is highly dependent on sunlight intensity. Ensure maximum sun exposure.
- Clean the solar panels to remove any dirt or dust.
- Ensure the ambient temperature is not excessively high, as extreme heat can affect charging efficiency.
- Anggo kabel USB kualitas luhur anu dirancang pikeun ngecas gancang.
- LED Indicators Not Lighting Up:
- If in sunlight, ensure the panels are receiving enough light.
- If connected to a device, check the cable and device connection.
- The internal battery might be fully discharged. Try charging it via a wall adapter.
If problems persist, please contact Sandberg customer support.
7. Spésifikasi
| Fitur | Spésifikasi |
|---|---|
| merek | Sandberg |
| Modél | 420-55 |
| Kakuatan Panel Surya | 21 Watt |
| Jenis Batré | Litium Polimér |
| Masukan Voltage | 5 volt |
| Kaluaran Ampumur | 2 Amperes |
| palabuhan USB | 3 (2x USB-A, 1x USB-C) |
| Tipe Panyambung | USB |
| Alat nu cocog | Smartphone, Tablet, alat-alat anu nganggo USB anu sanés |
| Fitur husus | Short circuit protection, Water resistant, Foldable |
| Ukuran (dilipat) | Kira-kira 58 x 31 x 1 cm |
| Beurat | 700 g |
8. Émbaran jaminan
Sandberg products are known for their high quality. This product comes with a garansi 5 taun. Please retain your proof of purchase for warranty claims. The warranty covers manufacturing defects under normal use. It does not cover damage caused by misuse, accidents, unauthorized modifications, or normal wear and tear.
9. Rojongan
For technical support, warranty claims, or further assistance, please visit the official Sandberg website or contact their customer service department. You can typically find contact information on the Sandberg websitus atanapi dina bungkusan produk.
Websitus: www.sandberg.it (Kelample link, please verify official support URL)





