As the USB Power Banks are becoming more and more popular in a world in movement, it is important you know how to make power banks last longer.
Power banks are a great accessory, so you can always bring your own spare power, instead of having to chase power outlets continually. Hence, you probably like to get the most out of your Power bank!
The three most important determinants in an external USB PowerBank is the battery cells, portability, and the safety circuit.
If you have gotten a fairly cheap PowerBank from a fairly unknown brand, you can be pretty sure they also use fairly cheap and unknown battery cells, and perhaps also saving on the electronics. You can always trust brands like oriamo, Anker etc
In this case, you are most likely already doomed, as cheap/poor battery cells will just degrade quite fast and will not last long, most of it doesn’t stay longer than before they start showing you signs.
If you bought a high-quality USB Power Bank from reputable makers such as oriamo, you can also expect they care more on using good battery cell quality, safety peculiarities and performance.
Apperently, this makes the products a bit more expensive, but it will give you the desired base for good performance and you are sure of a lasting power bank.
However, like all other battery related goods, there are some important pros and cons in order to extend the power bank lifetime and performance.
These are important, no matter the quality or brand, because the battery cells are made of active chemicals/gasses with limited lifetime.
If not handled correctly, the Li-Ion / Li-Polymer battery cells will steadily degrade/collapse much faster.
Here are three things you need to keep in mind to guarantee the best possible lifetime and performance:
– Use your USB Power Bank frequently! At least one full cycle every 3 month – even if you are in a new environment with power supply, do not forsake you quality power bank. Use it, drain its battery and recharge it.
If you buy a new Power Bank and bring it on holiday for a week or so, and then afterwards just keep it for many weeks or months, perhaps even with drained power.
You can be sure it can no longergive you the assigned mAh.Note that this doesnt depend on the brand of the power bank or the quality, but a normal behaviour, such Powerbanks are not covered by any warranty.
– Never store your USB PowerBank in a exhausted state (store it about 50% charged for longer periods)
– Do not expose your Power Bank for high humidity conditions and heat / direct sunshine. This has caused me one of my precious power banks. I took my power bank to the beach and forgot to remove it from my pocket before entering into the beach! The rest is story for another day!
These are the three most important guides to follow to ensure good performance and lifetime of PowerBanks and good battery cells.
Good USB PowerBanks, actually have a built-in safety function, which ensures the batteries are not fully depleted even when it is seen as empty. This way it will not take damage if not restored promptly, but obviously, you should still recharge it within a few days.
If you plan to store a PowerBank for more extended periods, then you should keep it 50-70% charged. This is normally and the best storage state for battery cells.
USB Powerbank Durability and Lifetime
If you do not follow these basic guide, you will experience that lifetime and performance will gradually deteriorate faster for most types of mobile batteries (Li-ion / Li-Polymer), including cheap Power banks and even the best PowerBank in market.
As the total lifetime of batteries highly depend on the operating conditions and how you keep it, it is also hard to give a clear answer on how long they can last. In good and perfect conditions, a good USB Power Bank could last a few years. High-quality cells can normally still give you +50% capacity after ~200-300 cycles.