Car Jump Starter Air Pump 4 In 1 Air Compressor Tire Pump 14800Mah Battery Booster Pack Car Booster Starting Device

The product must be turned on to discharge before charging for over 4 hours to prolong battery life.
Do not discharge and charge simultaneously.
Charge every 3 months to prevent low power failure.
Charging efficiency for phones and tablets is about 50%.
Fast charge and discharge speeds occur during the last 15% of battery power, which is typical for high-rate lithium batteries.
Matters needing attention (buyers must see): 1. The product has just been received, you must first turn on the flashlight to discharge, then charge the product for more than 4 hours before starting the car, because the product's battery is empty. This operation can prolong the service life of the product! 2. Do not discharge and charge at the same time! 3. Charge every 3 months, low power may fail start. 4. Charge phone tablet only occasionally. efficiency is about 50%. 5. The charge speed or discharge speed will be fast during the last 15% power of the jump starter. Please do not worry about these problems. This is the characteristic of high-rate lithium batteries, and it will not affect product quality and normal use.

Why it's necessary to get a jump starter? 1. Long standby time run out battery 2. Make preparation for a long driving trip 3. Your car can't start due to low power or freezing winter.
Color: Gray & Black
Material: ABS

Package Contents:
1 set 4 In 1 Car Jump Starter Air Pump

Only the above package content, other products are not included.
Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.