Bright Ideas for Energy Saving: Solar Power Banks (Part 1)
Free and environmentally friendly, there's everything to like about solar power.
And if there’s one place where a solar power's perfect for, it’s got to be sunny Singapore. For one, it’s a tropical country with constant sunlight and long hours of sun. So for us who usually complain about the hot sun, here’s a bright spot (pun intended) in all of it!
The best of both worlds.
You’ve probably heard of solar panels, but do you know that a 2-in-1 option - the solar powerbank - exists? Unlike a solar panel where the solar energy has to be used immediately, a solar powerbank (like a typical power bank) stores the energy so you have flexibility to use it anytime. Most can also be charged using a wall socket.
Besides, as a multifunctional device, it's more portable than having to pack both a solar panel and powerbank. In an emergency, having one less item to worry about is always a good thing!
Some may argue that a solar powerbank may not absorb as much sunlight as a Solar panels, and it also expends energy to kickstart. However, the solution doesn't have to be either/or!
By combining a solar panel with a solar powerbank, you’ll acquire a faster rate of charging (given dual input sources) while retaining the flexibility to use the latter like a normal powerbank on a day-to-day basis.
Why do I need one?
In places like Singapore with plenty of rail corridors and parks to explore, hikers and cyclists can rest assured not just knowing they have off-grid power available, but are able to store and prioritise energy usage!
Singapore’s small urban landscape also means we may not have open spaces to lay large panels out like they do in the US or Europe. For those preparing for emergencies, smaller, portable options like the foldable solar powerbank are a great alternative.
What should I look out for in a solar powerbank?
So what would be the key considerations when buying one?
Foremost, you'll want a multi-panel option like the 6-panel Anchor Solar Powerbank as it absorbs more sunlight, versus a single-panel model. You'll also want to look out for mono-crystalline options with high absorption efficiency (~22-23%).
This means that models such as the Anchor take only about 4 hours under direct sunlight to store enough energy to charge 50% of a typical phone. Quite substantial for an item that's small enough to fit into your pocket!
Secondly, despite the number of panels, solar powerbanks can be lightweight (under 600g!) and foldable - portable and perfect for your trips and travels. A non-detachable option is also preferred as there’s a risk of losing either component when on the go
Finally, you’ll also want a set with the right capacity. We’d recommend a 20,000 Mah powerbank - enough for 4-5 charges for small devices like tablets/phones while not too bulky compared to higher capacity models.
Anytime Power. For Today.
Whether you enjoy outdoor activities (such as trekking, hiking, cycling, boating or fishing), are preparing for emergencies, or simply wish to save on electricity (especially given recent tariff hikes), a solar bank is definitely an item for the now and the future.
(Stay tuned for Part 2 coming up soon!)