* Powerful Jump Starter Battery Pack: Car battery charger jump starter with large capacity lithium battery, the peak current up to 3500Amp, can start most 12 volt vehicles (up to 8.0L Gas and 7.5L Diesel Engine), suitable for SUVs, RVs, vans, motorcycles, snowmobiles, and lawn mowers.
* Fancy Sided LED Lights for blackout or roadside assistance. The built-in high Lumen LED is ideal for night-time emergency roadside repairs.
* Multi-Function Jump Starters: Compact design, Jstar 4 jump box is built-in a compass and safety hammer. Also, this portable car jumper starter has a 120 lumen super flashlight with 3 modes: normal, strobe and SOS. So the UTRAI battery jumper must be your perfect car emergency tool.
* Super Safe and Easy to Use: Jump packs for car battery come with a new generation of smart jumper cables, the advanced smart chip protection technology keeps you safe from all sparks and explosions. Flat LCD screen for easy reading of power, current and voltage data.
Logistics information
Our products are located in Hong Kong, China, and the logistics speed depends on your specific location. According to our experience, it usually takes about 15-20 days of transportation time
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How to choose the correct size:
Step 1 Please measure your foot length carefully.

Step 2 Please choose the correct size according to your foot length and chinese size.
For example, If your foot length is 255 mm , you should choose the size 8.
