How to choose the electric bike / motorcycle battery? Which one is better, lead-acid battery, lithium battery or graphene battery?

Now electric vehicles have become a travel tool for thousands of families, and electric vehicle batteries, as the power source of electric vehicles, are also in the rapid development, the current mainstream batteries on the market are lead-acid batteries, lithium batteries, graphene batteries, what are the difference between them? How to choose it? Come and see it quickly!

What is lead-acid battery?

As for common lead-acid battery, its electrode is mainly made of lead and lead oxide, its electrolyte adopts sulfuric acid solution, with the characteristics of high weight, large size, high safety, and high recyclable and usable value, it is the mainstream battery occupying 70% of the current market share of two-wheeled electric vehicles.

What is the lithium battery?

Lithium batteries are generally batteries that use lithium alloy metal oxide as the positive material, graphite as the negative material and non-aqueous electrolyte. With the characteristics of light weight and high density, it is currently the mainstream battery of electric vehicles, occupying part of the middle-end and high-end market share of two-wheeled electric vehicles.

Another one is the "rising star" —— graphene battery.

It is based on lead-acid batteries, with special graphene elements added, with the characteristics of increased density and longer life span than ordinary lead-acid batteries, it is an innovative battery mainly promoted by electric vehicle brands, and some brands will call it black gold battery.

01 Price differentiation

In terms of sales price, lead-acid batteries have obvious advantages. Lead-acid batteries cost about two-thirds of graphene batteries and one-third of that of lithium batteries, and because of the price advantage, lead-acid battery is currently the mainstream battery used in two-wheeled electric vehicles, with higher cost performance. The price of graphene battery is in the middle level, and the lithium battery is at a high level.

02 Difference in service life

The service life of batteries is the most concerned point for consumers when buying.

Currently, the average service life of lead-acid battery is about 2 years, with cycle lifes of 300~ 500 cycles; the average service life of graphene battery is about 3 years; and the lithium battery has a long service life, with cycle lifes of 700~ 1000 cycles, the battery can be replaced in about 4 years.

03 Safety performance difference

In the past two years, the spontaneous combustion phenomenon caused by electric vehicle batteries is mainly happened in electric vehicles equipped with lithium batteries, especially in many small workshops with private lithium batteries. As the density of the lithium battery inside is large, the heat resistance is poor, in case of overheating, such as summer or charging for too long, the load temperature will exceed, it may cause spontaneous combustion phenomenon. In particular, inferior lithium batteries should be more cautious in safety. And lead-acid battery stability is relatively high, generally there is very few spontaneous combustion phenomenon.

04 Weight difference

Lithium batteries are lighter than lead-acid batteries, which is more suitable for the pursuit of small and portable electric vehicle users, and lithium battery handling is also more convenient.

05 Quality assurance difference

The warranty time of electric vehicle battery is an important standard that the owners can refer to in the replacement and purchase. The warranty period of lead-acid battery, graphene battery and lithium battery is very different, generally, lithium battery has the longest warranty time.

06 Sum up

What kind of battery we need to choose depends on the electric car you choose, and the model should match the battery, and it depends on your actual use. But no matter you choose which kind of battery, you should choose the qualified product of formal manufacturer, you cannot choose inferior product!

07 Battery maintenance tips

Large discharge

Every time you use it, please do not use the power to the lowest level, develop the habit of timely charging, and make the battery power full as far as possible.

Charging order

Plug the battery plug, then the power plug; after charging, unplug the power plug and then the battery plug.

Long-term storage

When electric vehicles are not used for a long time, the battery should be charged once a month, and "power loss" for long-term storage.

Select the charger

Do not replace the charger casually, and try to use the original charger. If the original charger is damaged and cannot be used, please replace the regular charger with the matching model. Do not remove the speed limit of the controller, otherwise it will affect the service life of the battery

Long distance driving

Do not charge immediately after each long journey, you should first wait for the battery to cool for 10 to 30 minutes, and then charge, which can extend the service life of the battery.