Are you dreading a battery failure for your drinking computer? Don't panic! With external laptop batteries, you can keep working or playing, no matter where you are. But which one to choose? We tell you everything in this guide to the best external laptop batteries.
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Our selection
"A useful accessory for optimizing the performance of a battery, Core External Battery 20 100 mAh 2 USB 4.8A Ports is very powerful and features…"
"A compact battery with a small footprint, Anker Power Core 10000 Redux USB-C Power Delivery 18W is a powerful external accessory and a great troubleshooting…"
"Equipment representing an AC power solution, Krisdonia130W/60000mAh Power Bank is a mini portable electric generator compatible with many electronic devices."
"Litionite Raiden 160W/41600mAh Power Bank is a compact, ergonomic, easy to carry and above all powerful model."
A useful accessory for optimizing the performance of a battery, Core External Battery 20 100 mAh 2 USB 4.8A Ports is very powerful and features state-of-the-art technology.
54,93 £ on FnacEmbedding exclusive technologies dedicated to a fast charge, Core External Battery 20 100 mAh 2 USB Ports 4.8A integrate Power IQ and Voltage Boost. This allows it to gain optimal charging speed, up to 2.4A per port, or 4.8A through its two USB ports. It represents the most powerful output among the products present on the market.
This external Lithium-ion battery has a high performance, with a possibility of recharging 7 times an iPhone 6, 5 times a Samsung Galaxy S6 or 2 times an iPad Air. This performance is achieved after 10 hours of charging on a 2A charger or 20 hours on a 1A charger. In addition to this, it has a Multi ProtectAnker security system for more device protection.
A compact battery with a small footprint, Anker Power Core 10000 Redux USB-C Power Delivery 18W is a powerful external accessory and a great troubleshooting solution.
31,99 £ on AmazonAnker Power Core 10000 Redux USB-C Power Delivery 18W allows 2 recharges for an iPhone XS or an iPad mini 5. With 3 charging modes, it also has 3 ports including a USB-A port with Power IQ technology, a USB-C Power Delivery 18W port and a trickle charging mode, dedicated to charging low power devices.
In addition, Anker Power Core 10000 Redux USB-C Power Delivery 18W allows simultaneous charging of two ports at once after a three and a half hour charge via a USB-C Power Delivery charger. A high-end product, it has a smooth, matte exterior design and is equipped with cool blue LEDs to indicate the battery level. Its compatibility with many devices gives it an extra edge.
Equipment representing an AC power solution, Krisdonia130W/60000mAh Power Bank is a mini portable electric generator compatible with many electronic devices.
208 £ on AmazonKrisdonia 130W/60000mAh Power Bank has a maximum powerful output of 220V/130W. It easily fits with laptops, TVs, phones or other devices under 130W. It embeds PassThrough technology allowing it to charge connected devices simultaneously. Otherwise, the mini Power Station also integrates a fast charge option with an indicator on LED display to monitor the charge level.
Krisdonia 130W/60000mAh Power Bank has a high capacity in relation to its compact shape and light weight. Its 222Wh/60,000mAh Li-Polymer cells provide optimal power, and the European and UK adapters for AC output are added benefits. Otherwise, it has charge control support and protection against discharges, overcurrents, short circuits and high temperatures.
Litionite Raiden 160W/41600mAh Power Bank is a compact, ergonomic, easy to carry and above all powerful model.
160 £ on AmazonAny specific needs?
The best external laptop battery in 2021
The best entry-level external laptop battery
The best high-end external laptop battery
A device with great compatibility
Your guide :
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| TOP OF THE LINE | CHEAP | TOP OF THE LINE | EXCELLENT | |
In accordance with our commitment, this buying guide does not contain any sponsored products. |
8/10 |
7/10 |
9/10 |
8/10 |
| OUR SELECTION |
Anker NO PowerCore
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Anker PowerCore 10000 Redux
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Krisdonia
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Litionite Raiden
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A useful accessory for optimizing the performance of a battery, Core External Battery 20 100 mAh 2 USB 4.8A Ports is very powerful and features state-of-the-art technology.
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A compact battery with a small footprint, Anker Power Core 10000 Redux USB-C Power Delivery 18W is a powerful external accessory and a great troubleshooting solution.
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Equipment representing an AC power solution, Krisdonia130W/60000mAh Power Bank is a mini portable electric generator compatible with many electronic devices.
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Litionite Raiden 160W/41600mAh Power Bank is a compact, ergonomic, easy to carry and above all powerful model.
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Battery type
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Lithium
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Lithium-polymer
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Lithium-ion
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Capacity
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22500 mAh
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10000 mAh
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60000 mAh
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41600 mAh
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Rechargeable with an external solar panel
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yes
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yes
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Dimensions and weight
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81 x 81 x 156 mm and 759 g
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220 x 151 x 40 mm and 1800 g
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20.5 x 17 x 4.5 cm and 1600 g
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Charging speed
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The compactness of an external battery for laptop is an important criterion when you want to invest in it. Therefore, choose a model that is less than 10 cm in length and can be easily slipped into your bag. Opt also for lighter models but be aware that heavy batteries are generally of good quality.
The amount of electricity that external batteries can store varies from one model to another. This speed of the battery must be in relation to the needs of the laptop because the more programs or heavy software you use, the more energy the computer consumes. So choose an external battery of 20,000mAh (about 450g) that will provide good performance. By the way, 20,000mAh can charge an iPhone XS and a Samsung Galaxy S10 5 times; about 3 times a Huawei P30 and more than 2 times an iPad mini 5. However, if you want to submit multiple charges through the battery, opt for the 50,000 mAh models that weigh a good pound.
End caps are often provided with most external batteries allowing their compatibility with many types of portable devices. Make sure that these tips fit most of your devices, but be aware that external batteries are not necessarily compatible with all machines. Windows PC models, for example, are not always compatible with Mac laptops. So choose a battery that fits your computer.
The
energy flow provided by an external battery works the same way as a bottle filled with water that you pour into another container, but here we're talking about amperage. Choose 1A if your computer is not too power hungry and choose 2.1A for a fast charge. The higher the amperage, the shorter the charging time for your computer. Some batteries even offer a choice or adjustment of this charging speed.
Most batteries today are made of lithium. Even at similar capacities, Li-ion and Li-polymer batteries are not the same quality. If you're looking for a more durable external battery with a high capacity, look to lithium-polymer (Li-po) models, which offer more compactness but are more expensive than lithium-ion (Li-ion).
As used batteries contain heavy metals such as zinc and nickel, which are extremely polluting for the environment, it is not recommended to throw them in the garbage. In fact, these metals can be recycled and reused by industries. Copper, cobalt and lead, for example, can be reused to make new batteries, while nickel can be used for car bodies and cutlery. As for zinc, this metal can be used for roofing.
You can dispose of your used batteries in stores that sell batteries or in the store where you bought them, in supermarkets, DIY stores and electronics stores where you will find containers for recycling, in waste disposal centers. Town halls, administrations and other public places also have collection points for your used batteries. Finally, you can send your used external batteries to AboutBatteries. To do so, you just have to go to their website to contact them.
The optimum operating temperature for an external battery is between 20 and 25 °C. Above 40°C, your battery may be seriously damaged. And in extreme cases of 75 to 80 °C, there is a serious risk of explosion!
An external laptop battery is an external charger that powers your computer, tablet or smartphone without the need for a mains power source. This is convenient when you are on the go. These devices are easy to carry even if some models are quite large. With an external battery, you can give your phone, tablet, laptop or connected watch extra power to last a long time without power from an electrical outlet.
In conclusion, the external battery prevails in many ways over the additional battery because of its versatility, its great autonomy, and its possibility of recharging on solar panel for some models. However, if you are out of electrical coverage for a few days, opt for the additional battery which is more compact and ultra convenient.
In conclusion, the external battery prevails in many ways over the additional battery because of its versatility, its great autonomy, and its possibility of recharging on solar panel for some models. However, if you are out of electrical coverage for a few days, opt for the additional battery which is more compact and ultra convenient.
Remember to properly maintain your external laptop battery.
To maintain the quality of your external battery longer, always keep it full daily and do not wait until it is completely flat before plugging it into the mains. Keep your battery clean without using corrosive chemicals (acetone, vinegar etc.) for cleaning as these may damage the components of your battery. Also, do not store your battery in an area where it is intensely cold or too hot, as this will greatly reduce the life expectancy of your battery. Finally, only charge your battery with the charger provided by the manufacturer.
Clean your external laptop battery properly.
Cleaning an external battery is fairly simple. Just dust it with a microfiber brush or a dust vacuum. If stains persist, use a cotton swab soaked in a non-aggressive product like isopropyl alcohol.
Store the external battery in a suitable place.
If
you're not going to use your external battery for a long time, charge it to 100% before storing it. Then, put it in a dry place at room temperature between 20 and 25° to avoid damaging the electronic components. Then, put it away from the risk of mechanical shock in order not to deform its cells and cause an internal short-circuit or fire.
The recharging threshold of external batteries.
It
is not recommended to discharge your battery completely to keep its performance level, let your battery discharge up to 10% before recharging it once to reach 100%. It is also not advisable to start charging the battery as soon as it drops to 40%.
What to do if the external laptop battery overheats.
An
external battery has a voltage regulator. When this is damaged due to power surges or other causes, the battery will take all the charge it is given and then overheat. In such a case, immediately disconnect the battery and isolate it from all sources of electricity before cooling it down, then seek technical advice. Note that some external batteries already have a system that protects them against overcurrent, short circuit, overvoltage, undervoltage and overheating.
The best external laptop battery depends on your needs and budget. Read our buying guide for the best products out there.
No.
Avoid leaving a battery on charge for too long to increase its longevity. Ideally, you should unplug it once it reaches 100%.
Yes
, you can, but to avoid rapid deterioration of your battery's cells, let it recharge without using it
.
Lithium batteries have a lifespan of between 500 to 1000 recharge cycles. However, be aware that the better you care for them, the longer they will last.
No.
These ratings are not always reliable. Keep in mind that you will always need an external battery with a much higher capacity than your laptop.
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