Whistler WJS3500 Mighty User Guide
![Whistler WJS3500 Mighty Portable Jump Starter manual cover](/images/5b23ca7f3b02024a5ca9d0e3/thumbs/thumb175x175.webp)
Ensure the jump starter is fully charged. Connect the red clamp to the positive terminal and the black clamp to the negative terminal of the car battery.
Check the connection of the clamps, ensure the jump starter is fully charged, and retry. If it still fails, wait a few minutes before trying again.
Use the included USB cable to connect the jump starter to a power source such as a wall adapter or a car charger.
Store the jump starter in a cool, dry place and recharge it every three months to maintain battery health.
Yes, the WJS3500 can be used to charge USB devices such as smartphones and tablets using the appropriate cables.
The WJS3500 includes safety features such as reverse polarity protection, overcharge protection, and short-circuit protection.
The device has an LED indicator that will show a solid green light when fully charged.
The recommended operating temperature range is between -4°F and 140°F (-20°C to 60°C).
The internal battery is designed to last several years but should be replaced if you notice a significant decrease in performance.
While the WJS3500 is designed to withstand minor splashes, it should not be submerged in water or exposed to heavy rain.