Already present on the accessory market, the external battery has quickly become a must-have for users of smartphones, tablets and even cameras in order to anticipate any potential failure. In order to best meet the needs of users, there are all sizes, powers but also options (with led screen or solar energy).
The best value for money
Anker PowerCore II 10000 mAh external battery, ultra compact with USB port. Available only in black.
THE +
- Ultra compact format.
- Good autonomy: 10,000 mah.
- Neat finish.
- Fast charge and fast recharge.
- Robust.
- Very good ergonomics.
THE –
- No USB-C
- A USB-A output.
With this Anker PowerCore II there is a very good capacity / volume ratio for a price of less than 30 euros. Its size allows it to slip easily into your bag and have it with you wherever you go, which is very practical for your holidays, festivals or other outdoor activities.
With such a capacity you will be able to recharge your smartphone 2.5 times on average and this, with charging and fast recharging because it will take about 4h30 to recharge this small competition battery.
The most solar
External battery, solar charger and waterproof from Xnuoyo brand. With an autonomy of 20,000 mah.
THE +
- Convenient for charging when it’s sunny
- All Terrain.
- Robust.
- Waterproof.
- Equipped with a flashlight.
- Shockproof.
THE –
- Higher price
- Bulky.
Here is a foolproof external battery, It is also very practical for your travels, it is an optimal fallback solution if you have forgotten adapters for your chargers. This Xnuoyo, with a capacity of 20,000 mAh, also has 4 LEDs for optimal lighting. Once the battery is full and after a few days in full sun, it will allow you to recharge your devices thanks to its USB-A ports.
The most versatile
With a capacity of 26,800 mAh, the Todamay has 3 USB inputs and 2 outputs and an LCD screen.
THE +
- Allows charging of all types of phones (iOS, Android).
- An authentic LCD screen that indicates the charge level.
- Very good capacity: 26800 mAh.
- Polished surface, anti-scratch.
- Affordable price.
- Unique design.
THE –
- Weighs a certain weight
- A bit long recharging time.
With its magnificent LCD screen, this external battery from Todamay with a capacity of 26,800 mAh has everything to seduce you. It is possible that the lightning is not available on the external batteries, here, the problem is solved by offering you no less than 3 USB inputs and 2 outputs, you even have the choice between micro USB and USB-C! This battery is therefore ideal for everyday life, travel or even for travel.
The most imposing in CAPACITY
The Anker PowerCore II, a real monster in capacity with its 26,800H.
THE +
- High capacity of 26,800MAH
- 3 charging ports.
- Optimal output intensity.
- Good ergonomics.
- Two USB-A ports, 1 USB-C port
- Allows recharging any type of device with at least 2 charging cycles.
THE –
- Higher price.
- Heavier set.
With its fast charge and colossal capacity, the Anker PowerCore II is a real monster of autonomy. It is ideal for those who want to charge devices other than smartphones. The battery fully charges after 6 hours, making this AnkerPower Core II a foolproof travel companion!
The most wireless
The Samsung Powerbank Induction of 10,000 maH, equipped with a USB-C input and wireless charging. Available in 2 colors: gold and silver.
THE +
- A very elegant design.
- Quick charge.
- Wireless charging available.
- Silent.
- One of the best Qi certified references.
- Can charge 2 devices at the same time.
THE –
- Have Qi-compatible devices to take advantage of Fast Charge
- Fast charge efficient but sometimes capricious.
The Samsung Powerbank Induction 10,000 mAh is the type of external battery that you can take anywhere thanks to its practical design and recharges in just 220 minutes! And thanks to its OVP protection, you also avoid surges. Powerful and stylish, its wireless charging and Fast charge mode are real assets.
How to choose the best external battery in 2020? ?
Whether you are on vacation, traveling or having a night out with friends, don’t be stressed out about seeing the last 10 percent of the battery of your portable devices thanks to the external battery. And in this sense, it is important to select the best external battery according to its capacity therefore depends in particular on the duration of the planned trips.
For example with a capacity of 5000 mAh maximum, you can use it as a backup battery, easily transportable in a bag. For longer trips: between 5,000 and 10,000 mAh will suffice and for an external travel battery, aim instead between 10,000 to 20,000 mAh. If you plan to travel around the world, you may need 20,000mAh or more.
Nomadic by nature, the ideal external battery is small and light. But this criterion does not have the same importance for all users: fundamental if you plan to carry your accessory daily in your pocket, it weighs less if the back-up battery is intended to remain in the car. On average, the weight of external batteries varies between 80 and 500 grams.
Did you know ? Ideally, an external battery should have a higher capacity than the devices to be recharged. Indeed, a backup battery never delivers all of the energy it contains: converting the voltage to the USB cable, then to the device to be recharged, leads to energy loss.
This is why it is also important to look at the charging times as this varies from one battery model to another. It will likely take several hours to charge your battery to 100% and with plenty of ports, it offers the ability to charge multiple devices at once. The number of possible connections is also an essential criterion for selecting the right external battery. While some models can charge two devices at the same time, others can accommodate six: technology freaks will appreciate!
For an external battery to work with the intended device (s), its output port must have the same voltage as the original chargers. This voltage is expressed in volts (V). Input and output power must be a minimum of 15W for USB-C ports and 8W for USB-A ports and micro-USB. On the other hand, the intensity influences the charging speed of an external battery. And it is besides the PCB which regulates the voltage and which acts as protection for your battery. This avoids any risk of overloading.
In addition, you should know that some devices are more greedy than others. In particular those of the Apple brand are sometimes very greedy for whom medium or large capacity external batteries will be considered. The iPhone 11 for example has a capacity of 3100 mAh and the iPad Pro 9 720 and the Macbook Pro 13 ” are around 5000 mAH. This is why, to avoid ending up with a backup battery in place because of the self-discharge phenomenon, it is important to have a charge indicator in order to know when to recharge your accessory.
Like all products of this type, external batteries do not last forever. To be able to keep them as long as possible, certain precautions are necessary. After purchasing an external battery, it is essential to follow the instructions for first recharging indicated by the manufacturer in the user manual. The optimal charging time may differ depending on the make and power of the model chosen. The number of charge and discharge cycles over time also has a big impact on the life of an external battery.
Contrary to popular belief, fast charging does not affect battery life. On the other hand, it is better to avoid letting the accessory empty itself completely, otherwise it will permanently reduce its autonomy. It is best to recharge your external battery when it is at its lowest level, but still contains enough power to operate.Finally, leaving your external battery on when not in use can also affect its performance: it then runs the risk of self-discharging and therefore of requiring more frequent charges. For a battery that lasts as long as possible, it is essential to press the “off” button, more and more frequent on the latest models, after each use.
It is absolutely necessary to avoid using an external battery while charging, even to save time. It is better to wait until the accessory is fully charged before plugging in your smartphone or any other peripheral: waiting fully contributes to preserving the original capacities and therefore to extending its battery life.