20700 Battery vs. 18650 Pros And Cons, And Best Buy

Lithium batteries are the engine that drives your device. To get the best performance, an excellent and powerful lithium battery is crucial. You might be familiar with 18650 batteries as they are commonly used, aren't they While looking for the batteries, you might have come across 20700 removable batteries. They look similar to 18650 batteries, but they are not the same.

This guide is all about 20700 vs. 18650 batteries, to help you get the right information, pros, and cons, and choose the best for your device.

What are the pros and cons of a 20700 battery and 18650

The 20700 battery and 18650 are trendy in the market because of its significant applications. But over time we found that there are some pros and cons of these batteries. Let's get the detailed description of batteries:-

20700 Battery Pros:-

Battery Density-  The 20700 battery has a better power density of up to 300 Wh/kg, which is almost 20% more than any other lithium-ion battery available in the market. The power density plays a significant role in 20700 batteries, keeping it long-lasting for years.

Cheaper batteries- 20700 batteries are less expensive in the market. They typically range between 155USD/kWh- 175USD/kWh.  The pricing of 20700 batteries makes it affordable for everyone to use it over time.

3.2V 20A Low Temp LiFePO4 Battery Cell -40℃ 3C discharge capacity≥70% Charging temperature：-20~45℃ Discharging temperature: -40~+55℃ pass acupuncture test -40℃ maximum discharge rate：3C

READ MORE

Better Performance-  The 20700 batteries are lighter than any other battery. The reduction in battery weight and density increase battery performance. It works for miles when used in any electronic equipment.

20700 Battery Cons:-

Physical size-  It is a significant con of 20700 batteries. These batteries have a fixed size, which will not suit almost 99% of today's equipment. It means that you have to create a device for these batteries to use.

Battery life- Another concern about 20700 batteries is that it has lesser battery life due to over-discharging of lithium-ions, which decade its lattice.

18650 Battery Pros:-

Large Capacity- The lithium battery typically has a capacity between 1200mah and 3600mah. In contrast, the battery generally has a capacity of just about 800. When combined into the 18650 lithium battery package, 5000mah can be easily split in the 18650 lithium battery pack.

Long Life- The lithium battery of 18650 is long-lived. In regular usage, the cycle life can be over 500 times, more than twice that of an ordinary battery.

High-Security Performance- Lithium battery 18650 has high performance, no fire, no burns; RoHS-certified, non-toxic, non-polluting; safe execution of all types, cycle count more than 500 times. Both the poles of the 18650  batteries are isolated to avoid battery short circuits. Therefore, the short circuit probability has been reduced to the extreme. A protective plate may be inserted to prevent overcharge and over-discharge of the battery, increasing the device's life.

18650 Battery Cons:-

Aging-  Over the times and usage, the capacity of 18650 batteries steadily declines, and the temperature also decreases.

Intolerance of overcharge and over-discharge- The overcharge of 18650 batteries, which are overly embedded and can no longer be released, can permanently lead to batteries' short lives. During over-discharge, the battery releases lithium ions which collapse the lattice and shorten life.

Low Temperature High Energy Density Rugged Laptop Polymer Battery Battery specification: 11.1V 7800mAh -40℃ 0.2C discharge capacity ≥80% Dustproof, resistance to dropping, anti - corrosion, anti - electromagnetic interference

READ MORE

Inflexible- Since the basic shape and the dimensions have been set, the versatility of the 18650 battery is difficult. It is also, of course, an advantage to replace your battery.

What are the differences of the 20700 battery and 18650

Both batteries are specialized and differentiated based on their usage. Let's get to know the 20700 and 18650 info first of all what exactly are they:-

20700 Battery- These rechargeable batteries are high lithium-ion cell batteries,  usually specified or grouped by size. These are highly rated rechargeable batteries equipped with a hi-drain capability and a capacity from 3000mAh to 5000mAh. It is also intended for use in electric cars, scooters or skateboards, cordless power tools, personalized designs, and battery packs. A rechargeable 20700 battery has a nominal 3.7-volt voltage and a maximum 4.2-volt voltage.

18650 Battery- 18650 are rechargeable lithium-ion batteries with a standardized market size of 3.6 and 3.7 volts and capacity between 1200 mAh and 3600 mAh. Two forms exist; Protected and Unprotected. It is a very common source of battery for flashlights. The charge time for a 18650 battery varies according to the type of charger and battery. Average charging time is typically four hours for a 18650 battery.

Some of the basic differences discussed below:-

A 20700 battery has larger batteries. As such, it has a greater capacity and a higher rate of discharge than a 18650 battery. The 20700 battery has a diameter of 21 mm and a length of 70 mm. In contrast, the 18650 battery has a diameter of 18 mm and a length of 65 mm. A 20700 battery also has a capacity for power tool batteries of between 3000mAh and 4000mAh. In comparison, a 18650 battery has a capacity of between 1200mAh and 3600mAh. The 20700 battery has a better run time than a 18650 battery because of these battery capacities.

How do you buy a good 20700 battery or 18650

Different types of lithium batteries have different characteristics. Here are 4 key points to buy a good 20700 or 18650 battery:-

Voltage-  The voltage is a source of power that plays a significant role in buying a 18650 or 20700 battery. You should always check the voltage rating on the battery to ensure you don't buy a fake Battery.

Charge rate- The charge rate of 18650 or 20700 battery differs. The charge rate decides the energy consumption while charging a battery. It would be best if you always considered buying a battery which has a better charge rate.

Service life- Always keep in mind that you choose a brand that offers a better service life of the battery to ensure that you don't reinvest in a few months or years.

Safety-  Mostly, batteries catch fire with over usage or because of temperature heating to ensure your and battery safety always select a battery which has a secured wrap covered on it.

Conclusion

That’s all on 20700 battery vs. 18650. We hope that our guide has enlightened you enough to help you decide which one to buy - either 20700 or 18650 battery.