For being low-carbon, environmentally friendly, convenient, and quick, electric vehicles are deeply loved by consumers and spreading every day. The battery, as the energy source of an electric vehicle, is like the human heart: only with a strong heart can the vehicle travel farther!

So how do you take care of the heart of your electric vehicle? Let us walk you through it.

1. If an electric vehicle stands for a long time, how should the battery be treated?

It is simple. To protect the battery, store it fully charged and recharge it at least once a month. This effectively prevents irreversible sulfation and crystal-branch short circuits inside the battery.

2. Is it necessary to empty the charge before recharging?

Just like modern mobile phones, an electric vehicle battery does not need to be fully emptied before charging; you can recharge it at any time.

3. Does the battery need a supplementary charge at first use?

This is necessary. From leaving the factory to being used, a battery usually passes about two months, sometimes longer, and naturally loses some charge during storage. A supplementary charge is therefore needed so that you do not mistakenly think the capacity falls short of the figure marked in the manual.

4. Do overcharging or undercharging harm the battery?

Yes, and greatly! Overcharging beyond the battery's rated current most directly raises its temperature, causes heavy water loss over time, and in severe cases leads to deformation. With undercharging, the harm accumulates: capacity shrinks again and again, and the battery feels less and less durable.

5. Which is better for the battery: frequent recharging or charging only after a full discharge?

Neither is good. Frequent recharging of a high-quality battery is more or less fine, since shallow frequent charging helps protect its life; but among the batteries circulating on the market, apart from a few brands with low failure rates and stable quality, most have one flaw or another, and overly frequent charging instead damages their foundation and shortens life. Charging only after emptying the battery is also bad, because the battery stays under heavy load for long and is easily damaged.

6. Is voltage directly related to capacity?

Not at all! Voltage is voltage and charge is charge: high voltage does not necessarily mean high capacity, nor does low voltage mean low capacity. Under load, however, the battery voltage is related to its state of charge and can even be said to be proportional to it.

7. What harm does overuse of the battery cause?

Overuse makes an electric vehicle battery overheat severely, which reduces the sulfuric acid substance inside and lowers its concentration, promotes the formation of a special substance, and easily creates coarse, hard crystals on the plates. This weakens the battery's ability to accept charge and shrinks its usable capacity.

8. Does the rated capacity of a battery relate to its life?

Yes. Battery capacity is affected by the active material and its utilization rate. The external size of an electric scooter's lead-acid battery is fixed and the mass of its plates is limited to a certain degree, so capacity can only be raised by improving the utilization of active material. To increase capacity one must raise the porosity, the PbO2 content, and the specific gravity of the sulfuric acid, yet all these accelerate softening of the positive plate and speed up life decay. During charge and discharge the active material expands and contracts (the positive plate in particular); the deeper the discharge, the greater the expansion and contraction and the faster the softening. Therefore an initial capacity set too high directly reduces the number of charge-discharge cycles.

9. When is a maintenance charge needed, and what should be noted?

A maintenance charge is needed when: 1) capacity falls too quickly; 2) some deterioration or damage appears in the battery; 3) after the battery loses fluid and is refilled; 4) the battery has not been used for a long time; 5) the battery has been overworked; 6) the battery has worked in a harsh environment for a long time; 7) chronic undercharging has occurred. The cautions are to charge at the voltage of the original charger and to use multi-stage constant-current charging.

10. Do battery behaviors relate to temperature?

At high temperature the battery accepts charge well and is easy to charge; at low temperature charging is difficult. So in daily use be careful never to let the temperature of the charger and battery change too quickly, which directly affects charging performance and can even damage the battery.

That concludes battery care for electric vehicles. We hope it helps! Xupai battery takes you farther!