Your professional 21700 Battery Pack Manufacturer

TLH -Your Reliable 21700 Battery Pack Supplier in China

TLH battery has good experience on 18650 battery pack and 21700 battery pack. We have successful cases to develop e-bike batteries and drone batteries use 21700 cells.

The 21700 battery packs have high density and capacity. This type of 21700 cells is safer than 26650 because of their physical structure.

21700 battery pack solutions are popular in the market. We have tested Samsung and Moli 21700 cells 500 cycles testing in our factory before we use these cells to make a battery pack solution.

For more details about the 21700 battery pack, please call us.

TLH 21700 Battery pack FAQs – The Ultimate Guide

Isn’t it a genuine head pain to get 21700 battery packs with wanted particular and highlights for your gadget? Indeed, we are here to give you a complete answer for the entirety of your inquiries.

We are working for over 10 years to continue furnishing you with inventive thoughts and imaginative arrangements.

Here are our generally normal and regular posed inquiries, we have summarized their solutions for your help to choose what stands best for your gadgets.

1. What are 21700 battery packs?

21700 battery packs are known for their widespread applications in air diving system, electrical bike, drones, electric surfboard, medical equipment, and communication equipment.

21700 battery packs have high energy density as well as two-way outputs at both ends with polarities of positive and negative.

They are rechargeable lithium-ion cells.

Its name is quite helpful for wholesalers and device manufacturers because 21700 battery name identifies its size and compatibility.

The 21700 batteries are usually 7 cm in length and 2.1 cm in diameter.

Wholesalers and device manufacturers should note it that 21700 batteries come in the format of protected and unprotected.

It is quite necessary for you to do proper research of your customers and device and then order according to your need.

You might be using 18650 batteries in high drain devices such as flashlights, now you should consider 21700 battery packs because they are considered as an upgraded version of 18560s and 20700s batteries which will help your device to run efficiently for a longer time.

You can consider 21700 battery packs applications in electric vehicles as well as in power hybrid vehicles.

Figure 1 21700 battery pack

These batteries are the substitutes for conventional batteries to provide you with compact size batteries as well as batteries to perform extended run times without any faults.

21700 batteries are available with built-in charging USB ports, you can also get flat-top terminals as well as button top terminals.

21700 battery packs have more energy density than 18650 battery packs, which means higher and longer energy life of the batteries.

Due to its high demand, we have cut down the costs for 21700 batteries as compared to 18560 battery packs.

Our technical team have done proper research for 21700 batteries and we have worked on physical dimensions of battery packs to reduce any risks of damage and to enhance the protection of end-users.

2. What is the Comparison of 21700 battery and 18650 and which one is better?

There are some similarities and differences in both type of batteries, it is necessary for you to know about the aspects of both of them so that you can choose the best solution for your customers and devices.

Firstly, there are some physical features in both of them;

1. 18650 batteries are slightly shorter than 21700 battery packs.
2. Both batteries have button top and flat top formations with the only difference are that one is smaller than other.

As 21700 battery packs are bit larger than 18650 batteries, so they have higher run time as well as higher energy charge and power output.

if you are looking for customers and devices with the demand for higher energy charge then there is one major difference in both of them, energy charge for 18650 battery pack is from 1500 to 3500 MAH.

On the other hand, 21700 battery packs start around 3.0Ah and have higher energy charge range in between 3000 to 5000 MAH.

There are some manufacturers of 18650 batteries claiming to have an energy charge up to 9000 MAH, but this might be a trap for wholesalers and device manufacturers because such batteries could be either not protected or they aren’t capable enough to provide the desired power output.

Figure 2 18650 vs 21700 battery packs

As 21700 battery packs have more density as compare to 18650 battery packs, so there is more energy from 21700 battery packs for the longer application of tools and gears.

We have 1P packs and 3P packs for 21700 battery packs, it depends on the energy charge of cells.

In the comparison of 21700 battery packs with 18650 battery packs, we can say that there is a difference of 50%–100% runtime.

TLH offers detailed customer counselling to help you decide what sets best for your customers or devices.

3. What are the Applications and Specifications of 21700 Battery Packs?

21700 battery packs have a nominal capacity of almost 5000 mAH, the nominal voltage is around 48V.

This battery has a charging algorithm of CC or CV.

This battery has wide applications, you can use it for the drone, electric bikes or in electric cigarettes.

Our 21700 smart battery system is known for its efficient power output, we provide resourceful battery accessories along with battery packs to enhance user experience.

We are using cells from very famous companies such as Samsung and Panasonic, these cells have a huge demand in end customers and devices, so this is a great opportunity for wholesalers and device manufacturers.

Our 21700 battery packs have the chemical composition of lithium ions and they are high drain batteries.

Figure 3 current standard of power tool 21700 batteries

Usually, our customers have emphasized a lot on safety requirements, so we have implied multiple safeties in our battery system.

We have overcharge protection which is activated when the charging exceeds the set limit, this will prevent any harm to your customers’ devices.

It is very important for the compatibility of your device to control the discharge rate, for this we have used over-discharge rate which disables the discharge rate if it exceeds the limit.

Similarly, we have over-current and dual short circuit protections to prevent any harm to your devices and to give long durable lifetime to the battery.

We can set customized value for protection values, it depends upon your requirements.

We recommend using a charger made by TLH technical teams because it is made right according to battery need.

Our batteries come with an accurate source voltage calibration, our chargers have an auto-start and stop charging phenomena.

Our 21700 battery packs display battery and charge status.

It can measure battery resistance as well as measures batteries capacity.

21700 battery packs have an efficient design of heat dissipation, it prevents overheating of your device.

We have used protected cells in 21700 battery packs, they are incredible for elite gadgets and hardware, and are usually suggested or intended for explicit viable models to get the most predictable proficiency while guarding your gadget and battery with the onboard security.

4. How long does it take to charge 21700 battery packs?

Usually, lithium ions batteries have a charge time of 4-6 hours, it also depends on your requirements for the battery.

Lithium-ion batteries usually have a lifetime of three to six years, TLH offers 600 discharge/charge cycles.

21700 batteries have more resistance to surrounding environments and they last longer even in harsh conditions.

It can last longer in extreme humidity, high temperatures and can bear the extreme current load.

You should use TLH chargers for charging of 21700 battery packs for optimum results because we design chargers right according to need and requirement of battery.

However, there isn’t any particular answer for these queries, because there are several factors to determine before analyzing charge time.

Figure 4 Flowchart for charging and discharging

Charge time depends on the type and combination of cells.

Voltage and energy charge are also factors to affect the charge time.

So, it would be best if you discuss your device specifications from our technical team.

5. Why should we prefer TLH over other companies for the purchase of 21700 battery packs?

Firstly, we have the art of the state supply chain and production procedures for product development.

TLH’s planning group follows your product details right from the beginning till the moment you receive it, we offer customized plans for our customers.

Our team has excellent command over hardware and software sections, we can customize an efficient BMS system for your 21700 battery packs

The planning bunch includes significantly experienced designers.

Electric battery pack planning help plans 3D drawings of your custom 21700 battery packs.

If you have tight deadlines from your wholesale customers and device manufacturers. Then we are the most feasible option for you because we entertain our customers around the clock and can give you customized 3D designs within 24 hours.

We evaluate and finalise your prototype after proper research and working and then we represent it to you for final approval.

We have set strict guidelines for quality review; you can observer them actually by visiting our assembling cycle.

We have outfitted our cycle with IEC62133, UN38.3, ISO 9001:2015, CE, UL 2054 Certifications.

We offer you competitive prices along with outstanding quality to build long term relationship with you.

You can even visit our production plant and can witness our quality and working SOPs all by yourself.

To know more about our working criteria, please visit the following video or get in touch with our technical team.

6. What is the battery performance of 21700 battery pack and is it expensive for wholesalers and device manufacturers?

Firstly, 21700 battery packs have more energy charge as compare to other batteries.

21700 battery packs have an energy charge of at least 3000 mAH.

Numerous items utilize 21700 batteries, such as electric vehicles, electric bicycles, and electric equipment ects.

Since 21700 batteries can give more power, they are turning into a more traditional battery among gadgets, including spotlights.

Figure 5 battery performance of 21700 battery packs

Longer runtimes on different electronic gadgets have picked up the consideration of numerous cutting edge organizations.

21700 battery packs are frequently used in the electric lamp.

New spotlights have higher lumen yields and longer runtimes contrasted with there 18650 electric lamp archetypes.

This battery model even has a USB type-c port so you can charge the 21700 inside the electric lamp, no requirement for a different charger.

We offer 21700 battery with protection and safeties so that it can be safe for your devices and customers.

21700 battery packs have influenced markets due to its efficient specs and characteristics, they aren’t expensive.

21700 battery packs are available on customized options too.

You can have all type of device solutions from these battery packs, this battery packs also enable efficient power output, higher energy charge and stable voltage.

We use a series combination of 21700 battery packs to get the add up voltages, each cell sums up to the desired voltage.

On the other hand parallel combination are used to attain the higher capacity of battery packs, it is achieved by summing up the total ampere-hour (Ah).

We are always open to discuss your technical and financial queries, please feel free to contact us.

7. Will Covid-19 have any impact on your production and shipping of 21700 battery packs?

We haven’t stop our operation in Covid-19, we are following all of the SOPs and set guidelines.

We are working around the clock and we are available 24/7 at your assistance to provide you with the solutions for your devices and customers.

Even in this pandemic, we are achieving all of our production targets and timelines.

We are open to businesses from all over the world, we understand that Covid-19 has shrunk the profit margins and reduced the end customers, that’s why we are trying best to facilitate you with most feasible and timely solutions.

There has been no such proof that shows delays in shipment because of COVID-19 as of now.

It is, anyway important that you do your examination and ensures that the zone you need to convey to explicitly doesn’t have a prohibition on everyday pickups and drop-off area.

Numerous nations have forced either full lockdown or halfway lockdown to evade the spread of Coronavirus if there should be an occurrence of any updates identified with going of merchandise, kindly visit your respective country medical care site.

On the off chance that you are managing in clinically related things, at that point you may require additional confirmations from providers, in any case, your shipment could be stuck on custom.

If you want batteries for your medical equipment, even then TLH 21700 battery packs aren’t considered in the medical category, so you don’t need to worry about shipments of 21700 battery packs.

All the while, you should attempt to send your things in mass things, since, supposing that you are going for FCL( full container load) load then it will help quicken your shipments.

If you want to further know about the challenges for shipping due to Covid-19, then please visit the following videos of experts opinion or get in touch with our logistics team.

8. How will TLH assist us in choosing the right 21700 battery packs for our wholesale and device manufacture business?

TLH follows dynamic advancement course of events to you, we start it from securing the 21700 battery pack prerequisite datasheets from you.

With the investigation of the datasheet, our business group will way to deal with you to additionally explain the organization’s strategies and rule and to comprehend your necessities and prerequisites.

After it, you will give us BMS and 3D plan, in the event that you can’t furnish us with 3D and BMS plan then our expert specialists are here to plan BMS and 3D expenses of your 21700 battery pack as per your definite necessities.

Now, our group needs correspondence convention particular from you, If you don’t have one, at that point our architects will build up the most practical convention for you.

Our group can give you the best reasonable plan of BMS, CANBUS, UART or SMBUS.

With this, our group will give you the course of events for the entirety of the advancement measures and will help you with customary improvement reports to keep you refreshed for each progression.

Our group at that point attempts to build up a model of your 21700 battery pack, and we follow it with the various test, for example, temperature variations, transportation taking care of, dampness obstruction and reliance, just as vibration tests, maturing is followed.

We give you a detail report of your model and once you are totally happy with the exhibition of the model then we continue to the creation stage.

Just before moving to the gathering stage, our specialists check voltage and opposition varieties, whenever it is cleared then we collect your batteries utilizing heat psychologist and conservative lodging.

You can likewise demand custom lodging for your battery and we can likewise give you modified bundling.

This process is followed by efficient shipping and transport to your desired address.

To know more about our working criteria, please visit the following video or get in touch with our technical team.

9. What are the safety protections placed in 21700 battery packs?

For the most part, our clients have stressed a ton on protection necessities, so we have inferred various protections in our battery framework.

We have overcharge protection which is activated when the charging exceeds the set limit, this will prevent any harm to your customers’ devices.

Figure 6 Protection for 21700 battery pack

It is very important for the compatibility of your device to control the discharge rate, for this we have used over-discharge rate which disables the discharge rate if it exceeds the limit.

Similarly, we have over-current and dual short circuit protections to prevent any harm to your devices and to give long durable lifetime to the battery.

We can set customized value for protection values, it depends upon your requirements.

We recommend using a charger made by TLH technical teams because it is made right according to battery need.

Our batteries accompany an exact source voltage adjustment, our chargers have an auto-start and quit charging wonders.

Our 21700 battery packs show battery and charge status to assist your customers with analyzing the battery charge and discharge rate.

10. How can we avail discounts and special offers for your 21700 battery packs?

If you want to ship your package at the cheapest rate possible, you should ship and purchase 21700battery packs during the holiday season and use TLH as your production and shipment supplier.

TLH is offering its types of assistance for over ten years, and we have stretched out the experience of giving creation to clients across the globe.

We routinely offer discounts and special offers to our committed clients to help them save their expense alongside smooth transportation to their ideal location.

11. Can we visit your 21700 battery packs production plant?

Visiting the plant premises, you should contact the client care of TLH who will ask around a couple of things identified with your visit.

After we are finished with the pre-essentials of the visit then we will hit you up with a recommended date and season of visit.

To affirm your visit data, call us prior to coming to plant.

12. What business options do we have for 21700 battery packs and how will your 21700 battery packs increase our sales?

You can use two modes of business models for 21700 battery packs.

One is to provide 21700 battery packs as a retailer to the business customers or to end customers.

You can use different e-commerce websites for it, for example, you can use eBay, AMAZON, FACEBOOK and youtube.

You can use these platforms to cater to customers from all over the world, you can order a bulk amount of 21700 battery packs from us, this will save you cost on production as well as on shipping.

Another solution is that you can use our 21700 battery packs in your device because 21700 battery packs offer longer runtimes on different electronic gadgets have picked up the consideration of numerous cutting edge organizations.

Our batteries will safeguard your devices because we offer 21700 battery with protection and safeties so that it can be safe for your devices and customers.

21700 battery packs have influenced markets due to its efficient specs and characteristics, they aren’t expensive.

21700 battery packs are available on customized options too.

You can have all type of device solutions from these battery packs, this battery packs also enable efficient power output, higher energy charge and stable voltage.