1. ບົດແນະນຳ
The Forever JS-400 is a versatile 4-in-1 device designed for automotive and personal use. It integrates an emergency jump starter, an air compressor, a power bank, and a flashlight into a single portable unit. This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your JS-400 device.

Image: The Forever JS-400 device shown with its various accessories, including jump starter clamps, compressor nozzles, and charging cables.
2. ຂໍ້ມູນຄວາມປອດໄພ
ກະລຸນາອ່ານຄຳເຕືອນ ແລະ ຄຳແນະນຳດ້ານຄວາມປອດໄພທັງໝົດກ່ອນທີ່ຈະໃຊ້ຜະລິດຕະພັນນີ້. ການບໍ່ປະຕິບັດຕາມຄຳແນະນຳເຫຼົ່ານີ້ອາດຈະເຮັດໃຫ້ເກີດໄຟຟ້າຊັອດ, ໄຟໄໝ້ ແລະ/ຫຼື ການບາດເຈັບສາຫັດ.
- ຮັກສາອຸປະກອນໃຫ້ຫ່າງຈາກເດັກນ້ອຍ.
- ຢ່າເຮັດໃຫ້ອຸປະກອນຖືກຝົນ ຫຼືສະພາບທີ່ປຽກ.
- Do not use the device if it is damaged or modified.
- Ensure proper ventilation during use, especially when operating the compressor.
- ສະເຫມີເຊື່ອມຕໍ່ jumper starter clamps in the correct polarity (red to positive, black to negative).
- ຫຼີກລ່ຽງການລັດວົງຈອນຂອງຕົວກະຕຸ້ນເຄື່ອງສະຕາດamps.
- Do not attempt to disassemble the device. Contact qualified service personnel for repairs.
- ເກັບຮັກສາອຸປະກອນໄວ້ໃນບ່ອນທີ່ເຢັນ, ແຫ້ງເມື່ອບໍ່ໄດ້ໃຊ້.
3. ເນື້ອໃນແລະການຕິດຕັ້ງຊຸດ
3.1 ເນື້ອໃນຊຸດ
ກວດສອບວ່າລາຍການທັງຫມົດແມ່ນມີຢູ່ໃນຊຸດ:
- Forever JS-400 Jump Starter Unit
- ເຄື່ອງສະຕາດ Jump Starter Clamps
- Air Compressor Nozzles (3 types)
- ສາຍສາກ USB ຫາ USB-C
- ຄູ່ມືຜູ້ໃຊ້ (ເອກະສານນີ້)
- ຕູ້ເກັບມ້ຽນ

Image: The Forever JS-400 device is shown securely stored within its protective carrying case, highlighting its portability.
3.2 ການສາກໄຟເບື້ອງຕົ້ນ
Before first use, fully charge the JS-400 unit. Connect the provided USB-C cable to the device's USB-C input port and the other end to a suitable USB power adapter (not included). The display will indicate the charging status. A full charge ensures optimal performance for all functions.

Image: The device's digital display shows the current battery charge level, indicating it is nearly fully charged.
4. ຄໍາແນະນໍາການດໍາເນີນງານ
4.1 Jump Starter Function
The JS-400 can start petrol and diesel engines up to 2.0 liters with a starting current of up to 600A.
- Ensure the JS-400 is sufficiently charged (at least 75% recommended).
- ເຊື່ອມຕໍ່ cl ສີແດງamp ໄປທີ່ຈຸດບວກ (+) ຂອງຫມໍ້ໄຟລົດ.
- ເຊື່ອມຕໍ່ສີດໍາ clamp ໄປທີ່ຈຸດລົບ (-) ຂອງຫມໍ້ໄຟຂອງຍານພາຫະນະ.
- Plug the jump starter cable connector into the JS-400 unit's jump start port.
- Start the vehicle's engine. If it doesn't start immediately, wait 30 seconds before trying again. Do not crank for more than 3 seconds per attempt.
- Once the engine starts, immediately disconnect the jump starter cable from the JS-400 unit, then remove the black clamp, ປະຕິບັດຕາມໂດຍ cl ສີແດງamp ຈາກແບັດເຕີຣີຂອງລົດ.

Image: A user demonstrates connecting the jump starter clamps to a car battery, illustrating the correct procedure for jump-starting a vehicle.
4.2 Compressor Function
The built-in compressor can inflate items up to 150 PSI.
- Select the appropriate nozzle for the item you wish to inflate (tires, balls, bicycle wheels).
- Screw the nozzle onto the compressor hose and connect it to the item's valve.
- Turn on the JS-400. The display will show the current pressure.
- ໃຊ້ປຸ່ມ '+' ແລະ '-' ເພື່ອຕັ້ງຄ່າຄວາມດັນທີ່ຕ້ອງການ.
- Press the compressor start button to begin inflation. The compressor will automatically stop once the set pressure is reached.
- Disconnect the nozzle and store it properly.
4.3 ຟັງຊັນ Power Bank
The 7200 mAh power bank allows you to charge up to three devices simultaneously via its USB and USB-C ports.
- Connect your device's charging cable to one of the USB or USB-C output ports on the JS-400.
- The JS-400 will automatically begin charging your device. The display may show the remaining battery percentage.
- ຕັດການເຊື່ອມຕໍ່ອຸປະກອນຂອງທ່ານເມື່ອສາກໄຟສຳເລັດແລ້ວ.

Image: The Forever JS-400 is shown actively charging a smartphone, demonstrating its power bank capability.
4.4 ຟັງຊັນໄຟສາຍ
ໄຟສາຍໃນຕົວໃຫ້ແສງສະຫວ່າງໃນສະພາບແສງໜ້ອຍ.
- Press and hold the flashlight button (often marked with a light bulb icon) to turn the flashlight ON.
- Press the button again to cycle through different light modes (e.g., steady, strobe, SOS, if available).
- Press and hold the button again to turn the flashlight OFF.

Image: The Forever JS-400 device is shown with its built-in flashlight activated, providing illumination.
5. ບໍາລຸງຮັກສາ
- ການສາກໄຟ: To prolong battery life, fully charge the JS-400 every 3-6 months, even if not in use.
- ທໍາຄວາມສະອາດ: ເຊັດອຸປະກອນດ້ວຍຜ້າອ່ອນໆແລະແຫ້ງ. ຢ່າໃຊ້ສານເຄມີທີ່ຮຸນແຮງ ຫຼື ນໍ້າຢາເຮັດຄວາມສະອາດທີ່ມີສີຂັດ.
- ການເກັບຮັກສາ: Store the device in its protective case in a cool, dry place, away from direct sunlight and extreme temperatures. The operating temperature range is -20°C to +60°C.
- ການດູແລອຸປະກອນເສີມ: Keep jump starter clamps and compressor nozzles clean and free of debris.
6. ການແກ້ໄຂບັນຫາ
| ບັນຫາ | ສາເຫດທີ່ເປັນໄປໄດ້ | ການແກ້ໄຂ |
|---|---|---|
| ອຸປະກອນບໍ່ເປີດ. | ແບັດເຕີຣີໝົດ. | Charge the JS-400 fully. |
| Car does not start with jump starter. | ບໍ່ຖືກຕ້ອງ clamp connection; JS-400 battery low; vehicle battery severely damaged; engine size exceeds capacity. | ກວດເບິ່ງ clamp polarity; ensure JS-400 is fully charged; consult a mechanic for vehicle battery issues; verify engine size is within 2.0L limit. |
| Compressor not inflating. | Nozzle not properly connected; desired pressure not set; JS-400 battery low. | Ensure nozzle is securely attached; set target pressure; charge the JS-400. |
| ອຸປະກອນພາຍນອກບໍ່ໄດ້ສາກໄຟ. | Charging cable faulty; JS-400 battery low; device not compatible. | Try a different cable; charge the JS-400; ensure device is compatible with USB charging. |
7. ຂໍ້ມູນຈໍາເພາະ
| ຄຸນສົມບັດ | ຂໍ້ມູນຈໍາເພາະ |
|---|---|
| ຕົວແບບ | JS-400 |
| ຄວາມອາດສາມາດຫມໍ້ໄຟ | 7200 mAh |
| ກຳລັງເລີ່ມປະຈຸບັນ | ເຖິງ 600A |
| ຄວາມເຂົ້າກັນໄດ້ຂອງເຄື່ອງຈັກ | Petrol and Diesel engines up to 2.0L |
| ຄວາມກົດດັນອັດ | ສູງສຸດ 150 PSI |
| USB Output | Yes (2 ports) |
| USB-C Output/Input | Yes (1 port) |
| ອຸນຫະພູມປະຕິບັດການ | -20°C ເຖິງ +60°C |
| ຂະໜາດສິນຄ້າ | 6 x 18 x 13 cm |
| ນ້ໍາຫນັກລາຍການ | 480 g |
| ອົງປະກອບຂອງຈຸລັງຫມໍ້ໄຟ | ລີທຽມໄອອອນ |
8. ການຮັບປະກັນແລະການສະຫນັບສະຫນູນ
This product comes with a manufacturer's warranty. For detailed warranty information, please refer to the warranty card included in your product packaging or contact your retailer. For technical support or service inquiries, please contact the customer service department of FOREVER or your point of purchase.





