lithium 18650 li ion battery

　　How long can a lithium 18650 li ion battery electric bike be ridden?

　　The new battery of 48v20ah electric vehicle can drive 50-60km, and the old rechargeable battery can be calculated based on driving habits. For 48v20ah battery vehicles, if you want to ride farther, you can add a battery pack. You can also use a new electric vehicle charging head, such as a new parallel electric vehicle charging head. For example, a 48v20ah electric vehicle usually takes 2-3 hours to fully charge. And due to the choice of parallel charging, the working voltage of the battery can increase the battery life to prevent the battery car from running out of power halfway.

　　The rechargeable battery is 48v20ah or above, assuming the overcurrent is 10ah, and the charge and discharge capacity is about 75% of the total power of all rechargeable batteries for normal applications, so the constant driving time is continuous driving time = 75% × 20AH/10A = hour = 90 minutes , and electromagnetic energy release = 48 × 20 × 75% = 720W, the average speed should be between 20 horsepower and 25 horsepower × hour = 30 ~ kilometers.

　　1. Battery capacity: The longer the battery life is when the same vehicle is used by the same person;

　　2. Ride speed: Of course, the speed is getting faster and faster, and the mileage is getting shorter and shorter;

　　3. Average temperature: The charging rate of lithium batteries in summer is 105%, and the average temperature in autumn and spring is 100%. When the charging rate of lithium batteries decreases at 20°C, the charging rate in winter is less than 80%.

　　4. The output power of battery vehicles is generally divided into 180w, 200w, 250w, 350w, 400w, 450w, 500w, 800w, etc. If a 350w vehicle takes a new charging mileage of 70km, the higher the output power, the higher the power consumption, the same 48v rechargeable battery. But the 450w vehicle can only travel up and down for 50 kilometers;

　　5. Rechargeable battery brittleness level: As the frequency of use increases, the service life of rechargeable batteries gradually shortens. Generally, large manufacturers have quality assurance standards, but at any time within 6 months, every 60% rechargeable The power supply is replaced free of charge according to the manufacturer's requirements; from the 7th month to the 12th month, if the rechargeable battery volume is less than 50%, free after-sales maintenance is provided for special rechargeable batteries.

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