Custom made 48 volt lithium battery? How many 18650 lithium batteries do you need to do 48v20 amps

<> lithium batteries for low-speed electric vehicles.

Before buying a lithium battery, see if the battery cell used is a product, the quality of the battery determines the quality of the battery, such as capacity and energy density, etc., and then find a lithium battery produced by a large manufacturer, the production process is mature, the after-sales service is guaranteed, and the lithium battery market reference price is 1250 yuan. If you need to run long distances, it is best to install a range extender, with which you are not afraid of running out of power halfway, it can help you gallop without worry.

Because the cruising range of low-speed electric tricycle is still relatively limited, can not fully meet the daily travel needs of the public, if you want to increase its cruising range, you can install a range extender, in order to increase its cruising range, increase its range of activities, meet the daily travel needs of the public, realize the freedom of travel, no longer due to the lack of power halfway and difficult.

The range extender can be purchased directly from the manufacturer, and the manufacturer will ship it directly, which will be cheaper. It is necessary to choose a range extender produced by a large manufacturer and a big brand to have a comprehensive guarantee of quality, performance, technology, after-sales and so on, otherwise if it is a small workshop-type manufacturer, it is easy to break and there is no guarantee in all aspects.

Recommendations for the use of range extenders:

It is not recommended to start the range extender when the battery is full, and it is generally recommended to start it when the battery is only 30%-40%. There is no particularly good effect when starting when the battery is full, in order to be environmentally friendly, it is recommended to start the range extender when needed, battery pollution is more serious than exhaust gas pollution, and protecting the battery is to protect the environment. It is not recommended to use it when the battery is not a little charged, the range extender is electric when it starts, and it may not catch fire when the battery is not charged at all.

There is no need to customize, on a certain treasure, there are many businesses that sell lithium battery packs, find a good one, reliable, ask what brand of battery it is, don't look for too cheap.

This is completely customizable, but relatively speaking, the operation in this area is more cumbersome, and it must be professionally customized, so as to ensure its stability.

It depends on the capacity of the battery and the power of the charger (the current after transforming), and the capacity divided by the current is the time; For example, a 48V20Ah battery, use a 48V2A charger to charge, the time is 20 2=10h, plus the constant voltage section, the time is at least 10 hours, and the 48V5A charger will be fully charged in 4 hours + .

If you want to customize a 48-volt lithium battery, it's no problem at all, a 48-volt lithium battery, you first give people that size, and how many you need.

If you really want to customize a 48-volt lithium battery, she will come to find a battery manufacturer who can, find them to customize it, anyway, give him a big and small bear number, or how many grams can be, you go to the number clearly, how many of that, and the size.

Yes, this is a place where you need to repair electric cars or sell electric cars to order, and it is relatively cheap.

Custom-made 48 volt lithium battery? You can go to the battery store and see if you can do it. Or go to a battery repair shop. Let's see if we can do it.

If you want to customize a 48-volt lithium battery, you can have a 48-volt lithium battery, you must first give people the size, how much higher, and then what? And how many are needed?

If you want to customize this kind of battery, it is best to find a professional manufacturer of this kind of large company to customize, and then if it is too little, it may not be easy, and then you need to add money to them.

If you want to customize lithium batteries, then I suggest you best. After being customized by dealers and manufacturers, the lithium batteries that come out can really meet the requirements you use.

It's all 18650 battery assembly, search it, just those few well-known manufacturers, mainly more than ten times different, capacity, material, life, are measured by money.

This is possible, but it is still necessary to go to a regular professional place or manufacturer and make it. Quality and after-sales are guaranteed.

78 pcs.

13 sets of 18650 lithium batteries are required.

In series, the capacity needs to see the capacity of each 18650 lithium battery. For example, if you use 3500ah 18650 lithium batteries, each group needs 6 in parallel, that is, 78 18650 lithium batteries are needed.

Because the nominal voltage of a single lithium battery, 11 cells in series is the voltage, and the fully charged voltage should be able to = be able to reach more than 50V. Series connection is one of the basic ways to connect circuit components. Connect the circuit components one by one, one after the other.

The circuit composed of connecting various electrical appliances in series is called a series circuit.

In a series circuit, the current through each consumer is equal.

Lithium batteries are a class of metals made from lithium.

or lithium alloy as a positive and negative electrode material.

Batteries that use non-aqueous electrolyte solutions. In 1912, lithium metal batteries were first developed by Gilbert NLewis proposed and studied.

In the 70s of the 20th century, m s.Whittingham proposed and began research on lithium-ion batteries.

Due to the very active chemical properties of lithium metal, the processing, storage and use of lithium metal have very high environmental requirements. With the development of science and technology, lithium batteries have become the mainstream.

Lithium batteries can be broadly divided into two categories: lithium metal batteries and lithium-ion batteries. Lithium-ion batteries do not contain lithium in a metallic state and are rechargeable. Rechargeable battery.

The fifth-generation lithium metal battery was born in 1996, and its safety, specific capacity, self-discharge rate and performance ratio.

Both are superior to lithium-ion batteries. Due to its own high technical requirements, only a few companies in a few countries produce this lithium metal battery.

130 are required.

To assemble a set of 48 volt 20 amp lithium batteries, you need 130 volt 2000 mAh 18650 lithium batteries, and you also need a 13-wire lithium battery control version, which is 50 yuan a piece.

48 divided by 13 (branches), 20a divided by 2a equals 10 (group). 13 times 10 equals 130 (branches).

Lithium battery assembly process: such as silver.

1. Select the battery cell.

How should we choose lithium battery cells Lithium battery cells are divided into two types: one is ternary lithium, the other is lithium iron phosphate, the two types of batteries are slightly different, the number of battery cells of ternary lithium is less **Cheaper accordingly, and the number of lithium iron phosphate strings is more. It is also necessary to decide the battery cells according to the supply of the market, as well as personal funds. There is no scumbag feast.

2. Select the protection board.

Here is a ternary lithium battery cell as an example of a 14-inch protection board, the ** brand of the protection board is different, and it is okay to buy it as a suitable one.

3. Assemble the battery.

After the materials are ready, start assembling when you buy a protection board, send the assembly drawing,B negative when connected to the total negative electrode of the battery, the protection cable starts from the negative one,That is to say, the parameters are the same as your TV,The welding wire of the protection board is best to use six square silica gel soft copper wire,After combining according to the figure, you have to start testing。

4. Charge and discharge.

Use the matching charger and then fully charge the battery, then connect the discharge meter to discharge the battery, and observe whether the battery capacity is the same as the total amount you assembled, the same is normal. <>

Lithium battery 48V generally depends on the size of the capacity, ** is different, the market price of lithium battery for electric vehicles is about 800 yuan.

Main components: first constant voltage charging, the charging current gradually decreases with the rise of the battery voltage, and after the battery power is replenished to a certain extent, the battery voltage will rise to the set value of the charger, and then it will be converted to trickle charging.

At the beginning of charging, charge at a constant current to quickly replenish the battery; After the battery voltage rises, it will be transferred to constant voltage charging, at this time, the battery energy will be slowly replenished, and the battery voltage will continue to rise; When the charger's end-of-charge voltage is reached, it switches to trickle charging to maintain the battery and supply the battery's self-discharge current.

Technological development:

1. China's electric bicycle has been in the leading position in the world in the application of torque sensor technology and integrated circuit control technology, and the powerful enterprises have been applying integrated electronic and digital technology to controllers, motor valve control, charging control and other components, and intelligent electric bicycles will be the commanding heights of future development.

2. Traditional lead-acid batteries have become the Achilles heel of electric bicycles due to their potential for secondary pollution, large weight, slow charging speed and short service life. The application technology of nickel-metal hydride batteries in China has gradually matured, and the safety problem of lithium batteries is solved.

It can also be popularized. Technologically leading electric bicycle manufacturers should increase research on new energy, reduce the cost of new batteries, and give electric bicycles a stronger "source of life".

The above content reference: Encyclopedia - lithium battery electric bicycle.

The market reference price of lithium battery stool pool is 1250 yuan kWh, the number of charging and discharging cycles of ternary lithium batteries is about 800, and the number of charging and discharging cycles of lithium iron phosphate batteries is 2000 left. The storage temperature of lithium iron phosphate battery is -10 35, and the discharge working temperature of lithium iron phosphate battery is -20 65.

Summary. There are too many uncertainties in your question.

18650 is the specification of the battery, not to mention the battery material, so only the voltage is a requirement, there are 13 and 15 two options. You also ask for capacity stacking.

Stacking to 48V requires 13 knots in series to get lithium iron phosphate, and only 15 knots are required to stack up to 48V.

The capacity should also be calculated according to the capacity of 18650 monomer, and the difference is huge. Moreover, according to the use, it is necessary to distinguish between power batteries and non-power batteries, low-temperature batteries and normal temperature batteries.

If a single 18650 is a capacity of 3000, 48V stacked to 20ah, 13 strings of 6 and 78 knots.

How many 18650 lithium batteries do you need to do 48v20 amps

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There are too many uncertainties in your question. 18650 is the specification of the battery, not to mention the battery material, so only the voltage is a requirement, there are 13 and 15 two options. You also ask for capacity stacking.

Stacking to 48V requires 13 knots in series to get lithium iron phosphate, only stacking to 48V requires 15 knots of capacity, and it is calculated according to the capacity of 18650 monomers, ** The difference is huge. Moreover, according to the use, it is necessary to distinguish between power batteries and non-power batteries, low-temperature batteries and normal temperature batteries. If a single 18650 is a capacity of 3000, 48V stacked to 20ah, 13 strings of 6 and 78 knots.