18650 Battery Holder PCB

  • 10 years experience of manufacturing
  • Competitive prices
  • High-performance
  • Excellent quality

What is a 18650 battery used for?

The 18650 battery has a voltage of 3.6v and has between 2600mAh and 3500mAh (mili-amp-hours).

(Osborne, 2019) These batteries are used in flashlights, laptops, electronics and even some electric cars because of their reliability, long run-times, and ability to be recharged hundreds of times over.

What is a 18650 battery used for?
Are 18650 batteries banned?

Are 18650 batteries banned?

Consumers should not buy or use individual, loose 18650 lithium-ion battery cells without protection circuits due to possible fire risk, according to a warning just issued by the Consumer Product Safety Commission (CPSC). … Samsung and Sony also warn consumers against using the cells.

How can I charge my 18650 without a charger?

You need a regulator to apply a minimal charge, and fortunately, small incandescent lamps in light bulbs and decorative lamps are the perfect regulators for this task.

You must connect a cable to the lamp you are using and the other end of the cable will be connected to a hot battery, such as the car’s battery.

How can I charge my 18650 without a charger?

Find a reliable manufacturer of 18650 Battery Holder PCBs and choose Venture.

Venture is an expert in manufacturing all types of PCBs. We have been manufacturing for more than 10 years.

We also supply and manufacture PCBs for battery holders.

We can design 18650 Battery Holder PCBs based on the customer’s specifications and demands.

Your Leading 18650 Battery Holder PCB Supplier in China

Venture is a leading PCB manufacturer and supplier in China. We have more than 10 years of experience in the industry.

We provide different kinds of PCBs for different applications. Also, PCBs for a 18650 Battery holder and charger.

We supply them using high-quality materials so you can guarantee its quality and performance.

18650 battery holder with the PCB module is designed for making 18650 battery. Each battery holder is designed to hold a 1 x standard 18650 cell.  The battery holder is designed for 18650 batteries only.

The PCB is installed on the front surface to protect the battery from overcharging, over-discharge, over draining, and short circuits.

If you have more questions about 18650 Battery Holder PCBs or if you want to purchase, please don’t hesitate to contact us.

Our staff will be happy to entertain you.

18650 Battery Holder PCB: The Ultimate FAQ Guide

18650-Battery-Holder-PCB-The-Ultimate-FAQ-Guide

I know you would like to learn more about 18650 battery holder PCB.

A reason this guide will answer all questions you have been asking about 18650 battery holder PCB.

So, if you want to be an expert in these battery holder PCBs, read this guide.

What Is An 18650 Battery Holder PCB?

This PCB allows you to install a battery holder with 18650 battery type on a PCB.

A pin array allows you to connect such a holder PCB connects to the board.

The 18650 battery you employ in the battery holder PCB is a rechargeable lithium-ion battery.

It has a standard size of 18 by 65 millimeters, lending the first four characters to its name. The “0” at the end indicates the physical nature of the 18650 battery as a cylindrical cell.

The nominal voltage of an 18650 battery cell is 3.7 volts with a charging time of approximately four hours. However, you find the charging time affected by the voltage rating of the charger, its amperage, and the cell type.

The output power of an 18650 battery cell ranges between 1800 and 3500 milli-Amp-hours (mAh). You can furnish the 18650 battery holder PCBs from plastic material or metal.

18650 battery holder PCB

18650 battery holder PCB

What Battery Types Do You Use In An 18650 Battery Holder PCB?

When using the 18650 battery holder PCB, you have two available cell-type options. You can use protected or unprotected 18650 battery cells for your battery holder PCB.

Protected 18650 Batteries

You find it protected 18650 batteries with electronic circuitry within the cell’s structure for offering certain protections.

With this battery cell, you protect your battery from overcharging, over-discharging, overheating, over-current and short-circuiting.

Consequently, using the 18650 battery in your holder PCB is unlikely to result in damage from the previous events.

Therefore, the protected 18650 battery cell offers you a safe option for use in your electronic devices.

Protected 18650 batteries

Protected 18650 Batteries

Unprotected 18650 Batteries

The 18650 battery type lacks protective circuitry and is consequently cheaper compared to a protected 18650 battery.

Furthermore, the lack of an electronic circuit in its structure allows you to have a larger current carrying capacity.

However, these batteries are prone to overcharging, overheating, and short-circuiting due to lacking a protective circuit.

Using these batteries is risky. However, you can reduce the chance of damage by externally controlling the load.

Unprotected 18650 batteries

Unprotected 18650 Batteries

What Is The Output Power Of An 18650 Battery Holder PCB?

The nominal voltage of a standard 18650 battery cell you employ in a battery holder PCB is about 3.7 volts.

However, you can find some 18650 battery holder PCBs with cells topping 4.5 volts.

Additionally, these batteries have current capacities rated in milli-Ampere-hours, such as 1800 mAh, 2000 mAh, 2200 mAh, 2500mAh, and 2600 mAh.

You can also find battery cells with higher ratings between 3400 and 3600 mAh.

Does An 18650 Battery Holder PCB Allow Recharging?

You can recharge an 18650 battery cell and consequently provide a charging circuit for the battery holder PCB.

The charging capability of the 18650 battery holder PCB is due to the battery cells being lithium-ion cells.

You find 18650 battery holder PCBs commonly charged via a USB interface with different configurations allowing for different charging speeds.

You have different recharge cycles for the 18650 battery holder PCB that is also dependent on the design.

Over time, you experience degradation of the batteries in an 18650 battery holder PCB due to the recharging cycle.

The recharging cycle causes the degradation of the electrochemical properties of the battery and oxidation.

However, many 18650 battery holder PCBs design allows you to recharge many times over its useful lifetime.

Good charging procedures are also essential in determining how long you will enjoy using your 18650 battery holder PCB.

Many devices employing the 18650 battery holder PCB indicate the battery levels alerting you when your battery is low.

Efficient charging involves charging the battery when low on voltage but not too low and full.

18650 battery holder PCB

18650 battery holder PCB

What Chemically Constitutes The Batteries In An 18650 Battery Holder PCB?

The 18650 battery is a lithium-ion cell which essentially means a cell containing ionized particles of lithium.

Consequently, while you find different constitutions of the cell, they all have lithium ions present in their structure.

Common chemical composition of the 18650 batteries in an 18650 battery holder PCB include:

  • Lithium Iron Phosphate is also known as LFP or Li-phosphate.
  • Lithium Manganese Oxide or LMO or Li-manganese has a high amp draw.
  • Lithium Manganese Nickel or NMC with a high amp rating
  • Lithium Nickel Cobalt Aluminum Oxide, also known as Li-aluminum.
  • Lithium Nickel Cobalt Oxide or NCO.
  • Lithium Cobalt Oxide is also known as LCO or Li-cobalt.

Where Do You Employ An 18650 Battery Holder PCB?

You find the 18650 battery holder PCB employed in many electronic devices requiring stored energy to support its functions.

The ability to use these battery holders stems from recharging 18650 batteries and their impressive capacities.

Common devices employing 18650 battery holder PCBs include laptops, vaping devices, flashlights, power tools, robots, solar grids.

More recently, the 18650 battery holder PCB is finding application in electric vehicles such as the Tesla.

Why Should You Use An 18650 Battery Holder PCB?

Several factors make the 18650 battery holder PCB a valuable part of any electronic device. Common outstanding highlights of the 18650 battery holder PCB include:

Good Safety Standard

When using protected 18650 batteries for your 18650 battery holder PCB, you find it offers safe performance.

You have no risk of overheating, overcharging, over-discharging, over-current, or short-circuiting when using such cells.

Additionally, the 18650 battery holder PCB employs RoHS-certified material in its constitution, which is environmentally friendly.

Large Capacity

The 18650 cells you employ in an 18650 battery holder PCB have a large current drawing power.

You find this battery holder PCBs carrying several 18650 cells with a capacity ranging between 1800 mAh and 3600 mAh.

High Voltage Rating

Standard 18650 cells you employ in an 18650 battery holder PCB have a nominal voltage rating of 3.6 volts.

However, you can also find working voltages reaching 4.2 volts allowing you increased load support.

Long Life Span

An 18650 battery holder PCB can offer you a long service life two times that of regular battery cell types.

Using an 18650 battery holder PCB, you can achieve thousands of recharge cycles without battery degradation.

Multiple Applications

The 18650 battery holder PCB finds use in several devices requiring stored energy.

These include electronic devices such as laptops, robots, power tools, telecommunication equipment, and even electric vehicles.

Others

Other factors that make using an 18650 battery holder PCB favorable include:

  • Lack of memory effect with the 18650 battery cells.
  • The capability to present the battery holder PCB using joint configurations of both series and parallel,
  • You experience reduced internal resistance with an 18650 battery holder PCB which extends battery usage.

What Are Some Of The Features Of An 18650 Battery Holder PCB?

When acquiring an 18650 battery holder PCB, you find the following features essential:

  • The battery holder PCB should have a high energy density.
  • The working temperature should be low to prevent overheating.
  • The 18650 cells need to have a nominal voltage value of at least 3.6 volts.
  • You should have enough output power and capacity ranging from 1800 – 3600 mAh for each cell.
  • The 18650 battery holder PCB should be capable of shock-absorbing, especially from falls.
  • The battery pack should not be subject to electromagnetic interference.
  • Your 18650 battery holder PCB should be anti-corrosive.

Can You Use An 18650 Battery Holder PCB With AA Batteries?

You can determine whether you can use AA batteries with your 18650 battery holder PCB by making the following comparison.

Size

While the 18650 battery cell measures 18 by 65 millimeters, the AA battery cell measures between 13.5-14.5 and 49-51 millimeters.

Consequently, you note the 18650 cells are larger than AA battery cells, with the latter typically requiring loaded compartments.

Capacity

Standard 18650 cells have current outputs ranging between 1200 and 3600 mAh, with AA batteries managing between 800 and 2850 mAh.

When comparing similar cells of 18650 and AA type, you find the 18650 cell has a larger capacity.

Furthermore, the energy density of 18650 cells exceeds AA cells offering more than ten times the discharge rate.

Voltage

You find standard AA batteries with nominal voltage values ranging between 1.2 and 1.5 volts.

Contrarily, the nominal voltage of a standard 18650 battery cell is 3.6 volts, offering you more load capacity.

While you can configure some 18650 battery holder PCBs to accommodate AA batteries by furnishing loaded compartments, their use is unnecessary.

The AA batteries have many inferior properties in comparison to the 18650 battery holder PCB.

How Do You Connect The Batteries In An 18650 Battery Holder PCB?

You can connect battery cells in an 18650 battery holder PCB in three ways as follows:

Series Connection

In a series connection, you connect the negative terminal of the first battery to the positive terminal of the second cell.

With this configuration, you achieve a total voltage amounting to the sum of individual batteries’ voltage.

However, the system’s total capacity in Ampere-hours remains the same as that of a single cell.

Series connection

Series connection

Parallel Connection

You connect the cells’ positive terminals and the negative terminals in a parallel connection.

In this configuration, the total voltage of the system is the same as that of an individual cell. Contrarily, the system’s total capacity in Ampere-hours amounts to the sum of individual cell’s capacities.

Parallel connection

Combined Series And Parallel Connection

A combined connection involves the use of both series and parallel configuration in a single system. You can have various variants of a combined connection, such as one series, two parallel, and two parallel.
Combined parallel and series connection

What Should You Consider When Designing An 18650 Battery Holder PCB?

When designing an 18650 battery holder PCB, you consider the following factors:

Output And Voltage Requirements

It is necessary to consider the desired current output and voltage rating of your 18650 battery holder PCB during design.

The voltage or current rating you want will influence the connection type of your battery holder.

Area Of Application

The 18650 battery holder PCB finds use in several different applications, requiring different configurations and output requirements.

As a designer, you need to evaluate the key parameters necessary for a given application.

Mounting Technique

You attach the 18650 battery holder PCB to a mainboard or furnish it as an independent board for a precise function.

While you find some battery holder PCBs molded into the device, you typically attach such boards via socket mounting and soldering.

Standards And Regulations

Standards and product regulations are an important aspect of designing 18650 battery holder PCBs.

When designing the 18650 battery holder PCB, you consider the industry standards and prevailing product regulations to ensure approval.

Material

You directly attach many 18650 battery holders’ PCBs using wither wave or reflow soldering depending on mounting technique.

The temperatures required for these soldering processes are high, and you need to employ material with high working temperatures.

Contact Type

There are different contact types available for cells in an 18650 battery holder PCB, including fixed contacts, flexible contacts, or both.

When designing the 18650 battery holder PCB, determining which contacts you are going to use is essential.

Fixed contracts are less costly but hampered by their failing electrical connectivity. However, you achieve better connections when you combine fixed contacts with flexible contacts.

Flexible contacts accommodate the changing cell size when the cell discharges or its chemical constituents expand.

You can also have multiple contacts for the positive and negative terminals allowing adjustments without loss of electrical connection.

What Affects The Longevity Of An 18650 Battery Holder PCB?

A single cell of a standard 18650 battery can go over five hundred recharge cycles before exhibiting signs of decline.

Consequently, you can achieve a much longer cycle for an 18650 battery holder PCB with multiple such cells.

A charge cycle involves charging the battery and raising its voltage to about 4.2 volts before discharging around 2.5 volts.

An aging battery faces a reduction in its capacity, eventually with a considerable performance drop.

The following factors affect the longevity of your 18650 battery holder PCB:

18650 battery holder PCB

18650 battery holder PCB

Temperature

You find using the 18650 battery holder PCB outside the 0C to 45o C range increases its rate of aging.

Using the battery cells below 0C and above 45o C, especially when charging, negatively affects its performance.

Additionally, overexerting your battery holder PCB such that you observe a rise in internal temperatures beyond 40 o C is damaging.

Simultaneously charging your device at low voltage while maintaining active use can increase internal temperature.

Discharging/ Charging

You can enhance the longevity of your 18650 battery holder PCB by preventing discharge below 3 volts.

Additionally, unplugging your charger when your cell’s voltage value exceeds 4 volts or indicates full works to enhance performance.

Consequently, maintaining the voltage of the 18650 battery holder PCB cells to between 3 and 4.1 volts is appropriate.

You find the stress on the battery pack at this range is minimal, allowing you an extended service life.

Charger Care

It will help if you unplug your charger upon indicating or confirming a full charge to prevent stress on the battery.

Furthermore, where you have a separate charging case for your battery holder PCB, ensure you remove the batteries upon charge completion.

Removing the battery ensures your charger does not constantly charge the cells whenever it notices a voltage drop.

You find keeping the charger in a constant state of “on,” and “off” charging negatively hampers its life.

Charge Before Use

You should charge your 8650 battery holder PCB cells to use and not store.

Having charged batteries with no usage stresses the battery, and you’d rather store batteries in a discharged condition.

Rate Of Charging

You find many different chargers with different rates of charging reaching up to 6A in the market.

Especially when purchasing a secondary charger, ensure the charging rate matches that of the original charger.

Using a charger with a fast-charging rate on your 18650 battery holder PCB is detrimental to your cell’s life.

You find a charging rate between 0.5A and 2A is sufficient for your 18650 battery holder PCB.

What Battery Size Do You Use In An 18650 Battery Holder PCB?

An 18650 battery holder PCB holds battery cells of the 18650 type, describing the cell size. Consequently, you determine an 18650 cell is a lithium-ion battery measuring 18 by 65 millimeters.

The zero at the end designates the battery as a cylindrical cell.

What Voltage Are Parameters Useful When Designing An 18650 Battery Holder PCB?

When designing an 18650 battery holder PCB, the following voltage parameters are essential:

Working/Rated Voltage

The working voltage of a standard 18650 battery cell is 3.6 volts.

You note the value is equivalent to three standard AA battery cells connected in series.

Limit Charge Voltage

The limit charge voltage refers to the maximum voltage value you can achieve on charging an 18650 battery cell.

The charging process of an 18650 battery cell involves raising the voltage from 3.6 volts to 4.2 volts.

Consequently, you find the maximum limit voltage for an 18650 cell is 4.2 volts.

Upon achieving this value, you end the charging process; otherwise, you exert stress on the battery due to overcharging.

Discharge Cutoff Voltage

The discharge cutoff voltage is the minimum voltage that supports functions beyond which further discharging is damaging.

An 18650 battery cell has a discharge cutoff voltage of 2.75 volts below, which is over-discharging.

 How Much Does An 18650 Battery Holder PCB Cost?

The cost of acquiring an 18650 battery holder PCB depends on factors several factors. These include the cell capacity, voltage rating, output, and brand.

18650 battery holder PCBs accommodating cells with high output attract higher costs. Similarly, big brands and well-known brands cost much higher due to their efficiency and technological advantage.

You can also have 18650 battery holder PCBs with different cell configurations resulting in different output and voltages depending on the application.

Complex configurations involving several 18650 cells will attract much higher costs.

Furthermore, you have 18650 battery holder PCBs employing protected cells which are much more expensive.

However, you find 18650 battery holder PCBs costing anywhere from tens of dollars to hundreds of dollars.

What Is The Difference Between Amp Hours And Watt-Hours In Relation To An 18650 Battery Holder PCB?

When designing an 18650 battery holder PCB, there are several technical parameters you consider.

The amp-hour and watt-hour are two quantities useful in determining the performance of your 18650 battery holder PCB.

Amp-hours describe how much current output you can obtain from an 18650 battery holder PCB and the duration in hours.

A standard 18650 cell rated 2.6 amp hours draws 2.6 amps an hour or a single amp in 2.6 hours.

The amp hours quantification determines how much current you can draw from an 18650 cell. You find 18650 battery holder PCBs that draw more current in an hour have a reduced capacity due to heat loss.

Watt-hours refers to how many hours you can utilize power output from an 18650 battery holder PCB.

A cell with 10 watt-hours rating consumes ten watts for an hour or five watts for two hours.

Note that you cannot draw more power than is available since you achieve maximum load capacity.

Using the relationship between volts and amperes is equivalent to watts. You can convert watt-hours into amp hours.

Can You Use Different Cell Capacities In An 18650 Battery Holder PCB?

You can use cells with different capacities in your 18650 battery holder PCB though having similar cell capacities is better.

You find 18650 battery cells furnished with different capacities, allowing for cheaper cells with reduced capacity.

A single 18650 battery cell can hold a large percentage of its charge even after hundreds of cycles.

Provided you employ 18650 cells, having different capacities will not necessarily hamper performance.

Why Is It Important To Use An 18650 Battery Holder PCB?

You find the 18650 battery holder PCB important in several ways, most importantly maintaining voltage levels above 2.5 volts.

The composition of the 18650 cells in a battery holder PCB consists of lithium-ion, which is highly volatile.

Consequently, using the18650 battery holder PCB to discharge below 2.5 volts can cause permanent damage via ionic decomposition.

You find the 18650 battery holder PCB also important in the following ways:

The 18650 battery holder PCB protects the cells from short circuits by cutting off the current supply.

Similarly, the battery holder PCB reacts in the same way in case of an overcurrent.

Additionally, this particular battery holder PCB is important in preventing overcharging, automatically halting charging once you attain voltage capacity.

Overcharging causes internal stress in the cells, which results in temperature rise and at the worse explosion.

How Should You Store An 18650 Battery Holder PCB?

18650 battery holder PCB

18650 batteru holder PCB

When storing an 18650 battery holder PCB, you particularly consider temperature and humidity.

While you can store the 18650 battery holder PCB at room temperature, you have to avoid areas with direct sunlight.

Additionally, you need to avoid storage conditions with high temperatures exceeding 65 oC, which internally exerts stress on the cells.

Contrarily, when charging, maintain the temperatures between 20 and 25 oC.

Charging an 18650 battery holder PCB at higher temperatures can cause overcharging. On the other hand, charging at lower temperatures results in low voltage uptake, negatively affecting the pack’s performance capability.

You should also avoid storing and using the 18650 battery holder PCB in humid conditions. Water molecules are electrically passive and can affect the electrical performance of the cells in the battery pack.

When not in use, remove the 18650 cells in a PCB pack and store them in a cool and dry environment.

For an extended state of dormancy, charge the cells to about forty percent and store them in cool and dry conditions.

At Venture, we held you design all types of battery PCBs.

Whether you need battery charger PCB or battery protection PCB, Venture offer perfect solution for you.

Contact us today for all your 18650 battery holder PCBs.

Scroll to Top