1. Pengenalan
The YESPER 4120A YJS40 Jump Starter is a portable, high-capacity device designed to jump start 12V vehicles. It features a 26800mAh battery, multiple charging ports, and integrated safety protections. This manual provides essential information for the safe and effective operation of your jump starter.
2. Kandungan Pakej
Sahkan bahawa semua item terdapat dalam pakej anda:
- YJS40 Car Jump Starter
- Heavy-Duty Jumper Clamps
- Kabel USB ke Jenis C
- Penyesuai Pemetik Rokok
- Membawa Sarung
- Manual Pengguna

Image: The YESPER YJS40 Jump Starter and its accessories, including jumper cables, USB-C cable, cigarette lighter adapter, and carrying case.
3. Produk Lebihview
The YJS40 features a robust design with clear indicators and multiple ports for versatile use.

Imej: A terperinci view of the YESPER YJS40 Jump Starter highlighting its LED indicator, power button, LED flashlight, In/Out Type-C port, Quick Charging Output, DC15V/10A output, and Jumper Cable Socket.
- Penunjuk LED: Displays battery charge level.
- Butang Hidupkan: Mengaktifkan peranti dan mengawal lampu suluh LED.
- Lampu suluh LED: Menyediakan pencahayaan dengan pelbagai mod.
- In/Out Type-C (5V/3A): Used for charging the jump starter and powering other devices.
- USB QC (5/9/12V) Output: Quick charging port for compatible devices.
- USB (5V/2.4A) Output: Output USB standard untuk peranti pengecasan.
- DC (15V/10A) Output: Powers 12V DC devices like tire inflators or car vacuum cleaners.
- Jumper Cable Socket: Connects the heavy-duty jumper clamps.
4. Mengecas Pemula Lompat
Before first use, fully charge the jump starter. It is recommended to keep the device charged above 50% for optimal performance.
- Connect the USB to Type C cable to the jump starter's In/Out Type-C port.
- Connect the other end of the USB cable to a suitable USB wall adapter (not included) or the provided cigarette lighter adapter for in-car charging.
- The LED indicator lights will illuminate to show the charging progress.
5. Arahan Pengendalian: Menghidupkan Kenderaan Secara Langsung
The YJS40 can safely jump start 12V vehicles (up to ALL gasoline and 10.0-liter diesel engines).
- Pastikan jump starter mempunyai cas sekurang-kurangnya 50%.
- Connect the heavy-duty jumper clamps to the jump starter's socket.
- Attach the red (positive) clamp ke terminal positif (+) bateri kenderaan.
- Attach the black (negative) clamp to the negative (-) terminal of the vehicle battery or a suitable ground point on the vehicle chassis.
- If the vehicle battery is extremely low or dead, press the 'BOOST' button on the jumper cable for 2-3 seconds until the indicator light turns green. This provides maximum power for starting in cold conditions.
- Mulakan kenderaan.
- Sebaik sahaja kenderaan dihidupkan, segera tanggalkan penutup jumperampdaripada bateri kenderaan, kemudian tanggalkannya daripada jump starter.

Image: The YESPER YJS40 Jump Starter connected to a car battery with jumper clamps, showing the 'BOOST' button and indicator lights.
Video: A demonstration of the YESPER YJS40 Jump Starter successfully starting various 12V gas engines, including cars and trucks.
6. Fungsi Tambahan
6.1 Kefungsian Power Bank
The 26800mAh battery capacity allows the YJS40 to serve as a portable power bank for various electronic devices.
- Use the USB QC (5/9/12V) or USB (5V/2.4A) output ports to charge smartphones, tablets, and other USB-powered devices.
- The DC (15V/10A) output port can power 12V DC devices such as tire inflators, car vacuum cleaners, or car refrigerators.

Image: The YESPER YJS40 Jump Starter connected via USB cables to charge a smartphone and a tablet, demonstrating its power bank capability.

Image: The YESPER YJS40 Jump Starter connected to and powering a tire inflator and a car vacuum cleaner, showcasing its multi-function DC interface.
6.2 Lampu Suluh LED
Lampu suluh LED 400-lumen terbina dalam menawarkan tiga mod untuk pelbagai situasi:
- Mod Lampu Suluh: Untuk pencahayaan umum.
- Mod Lampu Strob: Untuk memberi isyarat atau menarik perhatian.
- Mod Cahaya SOS: Untuk isyarat kecemasan.

Image: The YESPER YJS40 Jump Starter's 400-lumen LED flashlight illuminated, with icons indicating Flashlight, Strobe, and SOS modes.
7. Ciri-ciri Keselamatan
The YJS40 is equipped with DSLI IV Intelligent Control Technology and 10 safety protection features to ensure safe operation:
- Perlindungan Caj Terlebih
- Perlindungan Lebihan Caj
- Perlindungan Suhu Terlebih
- Anti-Charge Protection
- Lebih-Voltage Perlindungan
- Perlindungan Terlebih Arus
- AI Software Protection
- Perlindungan Polariti Terbalik
- Perlindungan Litar pintas
- Low Self-Consumption Protection

Imej: Satu dalaman view of the YESPER YJS40 Jump Starter's circuitry, illustrating the 10 safety protection features including overcharge, over-discharge, over-temperature, anti-charge, over-voltage, over-current, AI software, reverse polarity, short circuit, and low self-consumption protection.
8. Penjagaan dan Penyelenggaraan
- Store the jump starter in a cool, dry place, away from direct sunlight and moisture.
- Recharge the device every 3-6 months to maintain battery health, even if not used.
- Bersihkan peranti dengan kain kering dan lembut. Jangan gunakan bahan kimia yang keras atau bahan yang melelas.
- Elakkan daripada menjatuhkan atau meletakkan peranti kepada kesan yang kuat.
9. Penyelesaian masalah
- Peranti tidak dihidupkan: Pastikan peranti dicas. Jika dicas sepenuhnya, hubungi sokongan.
- Kenderaan tidak boleh dihidupkan: Check that the jumper clamps are correctly connected to the battery terminals. Ensure the jump starter has sufficient charge. If the 'BOOST' function is needed, activate it as per instructions.
- Penunjuk ralat: Refer to the user manual for specific error codes displayed on the device's screen.
10. Spesifikasi Teknikal
| Spesifikasi | Nilai |
|---|---|
| Jenama | YESPER |
| Model | YJS40 |
| Puncak Amppemadam | 4120 Amps |
| Kapasiti Bateri | 26800mAh (99.16WH) |
| Voltage | 12 Volt |
| Komposisi Sel Bateri | Polimer |
| Berat Barang | 3.23 paun |
| Dimensi Produk | 8.82"D x 3.53"W x 1.72"H |
| Suhu Operasi | -4°F hingga 140°F (-20°C hingga 60°C) |
| Jenis Perkhidmatan Kenderaan | Passenger Car, Motorcycle, ATV, RV, UTV, Truck, Snowmobile, Lawn Mower |
11. Waranti dan Sokongan
YESPER provides comprehensive customer support for its products.
- Perkhidmatan Penggantian: Enjoy 365 days of replacement service.
- Sokongan Selepas jualan: Lifetime after-sales support is available.
- Respons Dalam Talian: 24-hour online response for any questions or concerns.
For further assistance, please visit the official YESPER webtapak: www.yesperpower.com


