Power bank jump starter BLOW JS-19, 16800mAh, 600A max discharge, 300A starting current, 19V output, 12V input, LED flashlight

The BLOW JS-19 is a portable power bank jump starter with a 16800mAh battery capacity, intended for emergency vehicle starts and mobile device power. It delivers up to 600A maximum discharge and a 300A starting current for gasoline engines within its rated range, and provides a 19V output for powering compatible electronics. The unit charges from a 12V source and reaches full charge in approximately 5 hours. Integrated features include an LED flashlight and LED charge indicators. The package contains a DP cable, a car charger, and a user manual.

Advantages

The BLOW JS-19 combines a high-capacity battery with a compact design to offer reliable starting assistance and device charging in one unit. High peak discharge capability supports quick energy delivery for engine starts while the 19V output enables powering laptops and other equipment. Built-in LED illumination and simple charge indicators increase usability during roadside emergencies. Included cables and a car charger simplify recharging and immediate deployment.

Suitable for

• Emergency car starts for small to medium gasoline engines
• Charging laptops and 19V devices while on the move
• Powering mobile devices and USB-powered accessories via the power bank
• Roadside emergency lighting and short-term illumination using the built-in LED flashlight

Key specifications

• Battery capacity: 16800 mAh
• Maximum discharge current: 600 A
• Starting current: 300 A
• Output voltage (max): 19 V for external devices
• Input charging voltage: 12 V (car charging supported)
• Approximate recharge time: 5 hours
• Built-in LED flashlight with LED charge indicators
• Colour: Black
• Includes DP charging cable and car charger; user manual included

How to use

Before use, ensure the jump starter is sufficiently charged by checking the LED indicators. For vehicle starting, connect the provided DP cable clamps to the vehicle battery terminals following the polarity markings and the instructions in the user manual. Power the unit on, attempt engine start, and disconnect the clamps once the engine is running. For powering 19V devices, use the appropriate output socket and cable; verify device compatibility before connecting. Use the built-in LED flashlight by switching to the light mode on the unit. Recharge the jump starter using the supplied car charger or another compatible 12V charging source; allow about 5 hours for a full charge under recommended conditions.

Usage recommendations

Handle battery clamps and connections with care to avoid reverse polarity; always follow the safety instructions in the user manual. Store the device in a dry environment and recharge periodically when not in use to maintain battery condition. Do not expose the unit to extreme temperatures or moisture. If the unit shows fault indicators or unusual behaviour, stop use and refer to the manual or contact qualified service personnel.