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which battery is best for electric bike
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The battery is the power source of the electric car, the range of an electric car is determined by the battery, the common batteries on the market today are lead-acid batteries, lithium batteries, colloidal batteries, LiFePO4 batteries and nickel-metal hydride batteries, which of these five batteries is better? Today we will give you a detailed analysis of the advantages and disadvantages of five kinds of batteries, to see which battery is more best for electric bike.
1.Lead acid battery is a very retro electric bike battery.
Most of the two-wheel, three-wheel and four-wheeled vehicle batteries in the Chinese market decades ago were lead-acid batteries, whose electrodes were made of lead and oxide, of which the electrolyte was sulfuric acid solution. This kind of battery is used for a wide range of purposes, and the price point is relatively moderate, there is a wide variety of types, the battery capacity is large, the key is that the process is more mature, the cost of maintenance is relatively low, and the lead-acid battery is internally set up with a lead-calcium alloy bar plate of the rehabilitation chamber structure.
Of course, lead-acid batteries also have their own shortcomings, very short life, cycle capacity decay is very strong, about 200 cycles will obviously feel that the battery is not as powerful as a day, even if fully charged. The second is the size is relatively large, and heavy, in the car occupies a large space, for the use of electric bike is a fatal disadvantage. E-bikes do not have enough space to install lead-acid batteries. The other is that the battery contains a lot of lead, easy to cause environmental pollution, so the used battery should be sent to a special recycling company in a timely manner, not just discarded.
2. Lithium battery is the hottest electric bike battery product at present
Lithium battery is relatively light and light weight, which is perfect for lightweight electric bikes. It uses a non-water electrolyte battery, and lithium ions are deinserted when discharging, and lithium ions are inserted when charging. Since lithium batteries have high storage energy, usually several times that of lead-acid batteries, lithium batteries of the same volume and weight are more durable than lead-acid batteries, with a longer range and longer service life, usually reaching about 80% of the actual capacity after 1000 cycles.
However, lithium batteries also have their own shortcomings, that is, the safety is not lead-acid battery stability, so the market derived from the lithium battery BMS (Battery Management System) lithium batteries as long as the increase of BMS, safety and stability will be guaranteed. When the battery encounters problems will damage the BMS and will not cause damage to the battery cell resulting in lithium battery instability. Price is the same volume and weight of lithium batteries are several times the price of lead-acid batteries.
3. Colloidal battery has high capacity, stable performance and long service life, but high price.
Colloidal lead-acid battery is a kind of battery improved on the basis of lead-acid battery, it adopts gel electrolyte, there is no free liquid inside, so it is more efficient to use. Generally, under the same volume, the capacity of colloidal lead-acid battery is bigger, so the thermal capacity is also bigger, and the thermal dissipation ability of this kind of battery is strong.
Also, the stability of the colloidal battery is very good, able to withstand a long time of discharge or deep discharge, and there are special features of overcharge and overdischarge. If we talk about the disadvantages, the price is a bit higher, the cost performance is very poor, and then is not suitable for the size of light electric bike. Colloidal lead-acid batteries have a large capacity but also have a very large volume and weight.
4. The hottest ultra-long life LiFePO4 battery in recent years
LiFePO4 is the hottest selling energy storage battery in recent years. Lithium iron batteries have a super long life of 5000 cycles and can work on electric bikes for ten years! LiFePO4 battery is as stable as lead-acid battery because the discharge multiplier is very small. The volume of LiFePO4 battery is the same as that of LiPo battery, which is also suitable for application in light electric bike.
The disadvantage is that the discharge rate is too small. The discharge rate of lithium battery is three times or more than lithium iron battery. The price is not cheap, and the price of Li-ion battery is almost the same. At the same volume, LiFePO4 has about 45% less capacity than LiPo. Due to the limitation of the discharge rate of LiFePO4, it cannot be used in high power electric bike.
5. NiMH battery power is safe and reliable but small capacity and high price.
Nickel-metal hydride battery is a kind of alkaline battery, the power of this battery, and the work of the current can be smoothly discharged, good safety performance, long cycle life, their own weight is relatively light.
But the disadvantages of this battery is also very obvious, that is, the battery capacity is relatively small, weakness is relatively short range, and the price is also relatively high, there is another point, this battery has memory characteristics, you must use up the battery’s electricity to recharge, so the use in the electric bike is almost no.
Through the above four battery comparison, you can see that kind of battery is the best for electric bike, currently using lithium battery is still the mainstream of the market, after all, this kind of battery increases the BMS is safer, high capacity, strong power, the battery is relatively small.
And LiFePO4 battery is the second popular battery, although in capacity and power than lithium batteries, but it has the advantage of ultra-long life, wait until the technology is more mature, will probably become the market leader.
Although colloidal batteries and nickel-hydrogen batteries are more advanced, but because of the higher price point, in the regular use of electric bikes, the proportion of smaller, but also an advanced technology, but the cost performance is really low.
So, in the end, which battery is the best for electric bike, one should be determined according to their actual situation, and the other should look at their range and lightness, and consider many aspects to choose the best electric bike battery. If you need to burst and high power already super long range, then the best battery is lithium battery. If you need ultra-long working life, occasional walking, do not need a long ride, then the best battery is LiFePO4 battery.
Thank you for reading
1 thought on “which battery is best for electric bike”
Itís hard to find experienced people in this particular subject, but you sound like you know what youíre talking about! Thanks