Is there portable batteries and what are safe and rapid batteries? If you're looking for one of the most helpful gadgets to bring around, then charger[ portable chargers ](https://techyassist.net/blog/portable-charger/)are one of them, but some of them are more effective than others so it is important to know what to look out for. Use maps, work and photos from your phone, and a reliable power bank will get you through when the power goes out or when you're lost on the road while traveling. Begin with capacity. The 10,000mAh version is great for everyday use, and will last for two phone charges, while the 20,000mAh version is recommended for longer trips or for charging a tablet, usually lasting for 5 phone charges. Notice that the power listed on the label is the power the unit is going to consume when operating, and will be slightly less than actual power. Next, check speed. The 20W is a decent output considering today's phones, while USB-C Power Delivery is the most future-proof portable charger type. With a tablet and a small laptop, it's 45W or higher that you'll want to use. One or more ports to charge out at the same time, divided in the more watts, the better . Be safe, remember safe! Look for overcharge, overheating and short circuit protection and buy from manufacturers which offer the proper certifications. The least expensive, non-scented units will brag about a lot more than they will have the ability to give, and can have a very brief useful life; they can be most susceptible to battery issues. When flying, keep the power bank in your carry on and follow the general rule for power banks on airplanes of 100Wh.Also, it's a few little things. Add-on parameters such as inbuilt charging dock for cables or pass-through charging, a thin profile and a percentage displayed on the digital display can come in handy to make the device easier to use, but don't spend on those you won't use.You don't have to take our word for it, take the time to read honest reviews before making your purchases. I like this about techyassist they have honest and hands-on gadget reviews; they list all the products on their website, so if you've been impressed by a gadget review, you can buy a model from them. With two-three choices of capacities, speeds, safe etc. you will know which portable charger is right for you.