1. First determine whether the battery of your car is 12V, 24V, or 48V. Generally, small cars are 12V, and then find the jump starter corresponding to the output voltage.
 
2. It depends on how much starting current you need. The higher the starting current of the jump starter, the higher the price. Just choose the one that is suitable for you. The 200 to 300A jump starter for ordinary cars is enough for you.
 
3. The capacity of the jump starter. If you want to take the jump starter or mobile power bank on the plane, there are relevant regulations, that is, the energy should be less than 100WH. Generally, the mobile power supply may only give the capacity in mAh, then we can also calculate the energy WH. How to calculate it? W=U*Q, W represents energy, this value should be less than 100WH, U represents the rated output voltage, the rated voltage of the general mobile power output is 5V, and Q represents the battery capacity (note the unit conversion, Ah is 1000 times mAh), Then Q≤W/U, that is, Q≤100WH/5V; Q≤20000mAH.
 
4. The battery core of the jump starter should be good, otherwise it will be a matter of time. How do you know whether a battery cell is good or bad? When you buy it, don’t you ask which battery cell you used? Which battery cell factories have good batteries?
 

 
5. The battery clamp must have a protection function, and it can be over-current, otherwise the battery clamp will not burn well.

Linsheng    is a professional      Jump Start Manufacturing Company    . Provide high-quality quick-start car service. Our quick-starter has multiple safety protection designs, which can ensure zero defects, and can achieve high-power polymer batteries, fast charging, low self-discharge and other advantages. Whether you choose the current product from our catalog or seek engineering help for your application, you can contact our customer service center to understand your purchase requirements.   https://www.linsheng.com/product/jump-start/