18650 batteries — Where to buy in Portugal 

Today, many equipment, such as cameras, bicycle lights, drones, walkie talkies or flashlights, are powered by 18650 batteries, a model with more capacity and durability than common lithium batteries. Because they are present in so many everyday devices, they are increasingly sought after and many people want to know where to buy 18650 batteries in Portugal.

Aquário Eletrónica has several models of 18650 batteries, as well as chargers and other accessories that will allow for even more practical and efficient use. But first, we look at 18650 batteries, their features and advantages.

What is a 18650 battery or cell?

A 18650 battery or cell is a type of cell that is 18 mm in diameter by 65 mm in length. Although there may be slight variations, it is precisely these measurements that give the name to these lithium-ion cells, which have also become the standard model for rechargeable batteries. 

18650 batteries have a capacity ranging from 1800mAh to about 3500mAh and are considered “"high-power batteries"”, as they are designed to generate high voltage and output current, thus meeting the power requirements of portable devices. 

As they are rechargeable, they are amore sustainable and economical alternative to traditional batteries.. Furthermore, reliability, runtimes and the ability to be reloaded hundreds of times are also arguments in its favor. 

Its dimensions are what name the stacks 18650

 

Benefits of 18650 batteries

As mentioned, the piles 18650 are more powerful and durable when compared to more common batteries. They are very similar to AA batteries, but slightly larger. With larger dimensions, there are also more advantages: 

• They are lightweight; 

• They have greater capacity; 

• They are more resistant to discharge. Despite this, full discharge should not be a recurring practice, as in the long run it will damage the battery and negatively affect its overall performance;

• They withstand multiple charging cycles. 

To take advantage of these advantages and make the most of the lifespan of your 18640 batteries, you should follow some good storage practices, namely: 

• Store your batteries in a dry space at room temperature;

• Avoid situations that could subject batteries to extreme heat or cold; 

• Do not store batteries in a pocket or compartment that also contains metal items such as keys or coins, as this may cause accidental discharge. 

• If you are going to leave your 18650 batteries idle for a long time, charge them to 50% instead of 100% and remove them from the slide. 

How to choose 18650 stacks?

To choose the most suitable 18650 battery, it is important that you consider a number of factors.

1. To know the power of the device i feed;

2. Consider the maximum length that the stack must have to fit into the equipment without forcing it. As mentioned, all these stacks are 65 mm long, but minor changes may occur.

Check out some options for 18650 batteries available at Aquário Eletrónica: 

Stack 18650 Samsung 

 

Samsung Stack 18650

 

A 18650 Samsung battery is a reliable and safe option for your devices. With a capacity of 1500 Mah and a voltage of 3.63 V, it is a model that also impresses with its charging time: between 2h30 and 3h. However, opting for the fast charging option will have your battery ready in about 40 minutes. It is an economical device, with a cumulative discount if you buy 6, 10 or more than 25 units.

• Weight: maximum 47 grams

• Capacity: 1500 mAh

• Model: Inr18650-15l

• Default charging current: 750 Ma

• Charging method: Cc-cv (Constant Voltage With Limited Current)

 

Stack 18650 Panasonic 

Stack 18650 Panasonic

 

If you need a model with more capacity, then Panasonic Stack 18650 may be what you are looking for. This device offers 2900 mAh and 3.7 V of voltage.

Load 18650 batteries

But what about when the battery runs out? With 18650 batteries you don't need to run to a supermarket to get your energy back and a few hours should be enough to get the charge back.

Actually, the charging time varies depending on the charger and battery, so the most advisable thing is to consult the information of the equipment you are using or talk to the seller.

To do this, you should invest in a 18650 battery charger. If you use a charger that is not suitable for this type of battery, you can permanently damage the equipment or, in extreme cases, cause an explosion.

Battery charger 18650 XTAR 

Lithium Battery Charger 18650

If you're going to invest in 18650 batteries and want to make the most of their benefits, you'll also need a charger. One of the most practical, efficient and economical alternatives is 18650 XTAR battery charger. Supports two batteries simultaneously, is compatible with nickel-metal hydride (NiMH), lithium-ion and nickel-cadmium batteries (NiCd) and is a charger suitable for household needs and batteries. 

18650 battery charger

Stack Loader 18650

Another excellent option is Lithium Battery Charger 18650. Economical, but highly efficient, it is a device that will meet your needs.

If you want to know the charge level of your 18650 battery, use a multimeter. Just set it to DC (direct current) and put the red wire on the positive pole and the black lead on the negative. Batteries with a charge of 3.7 V volts normally stop working when they reach 3.4 V. If your battery has this value or lower, you should charge or replace it.

If you still have questions about 18650 batteries and batteries, do not hesitate to contact contact us. Our team of technical professionals will be happy to answer your questions and help you choose the best option.