Review: Coocheer 7,500mAh Rugged Power Bank

Coocheer 7,500mAh Rugged Power Bank











  • Waterproof, Shockproof and Dustproof
  • 2 Charging Ports
  • Has a Lanyard Hole that can be used to connect a Carabiner


  • Can't be submerged into water without being damaged
  • It's bulk and quite heavy

Power banks that are shock and waterproof are basically more helpful to use than power banks that aren’t. Since most of the time, we’re always worried about what will happen to our electronics when water gets on them or when they drop.

Rugged power banks are able to absolve that worry since they can take withstand the harmful things that would normally affect, well, normal devices.

Most think that these kinds of power banks are best used for when you’re taking a hike or going camping. However, they’re just as helpful for everyday use. Although they can be bigger and heavier.

This is the Cocheer 7,500mAh power bank that’s shock, water and dustproof. Let’s see how it fairs with its build and tech quality in detail, though.

RAVPower Rugged 10,050mAh Power Bank


Power Capacity:

The Coocher power banks use normal Lithium-Ion batteries. So during charging it’s going to lose about the average amount of power capacity when the conversion of energy from the power bank to your device is happening.

This is because there are inefficiencies that arise during charging that include the battery and the charging cable. As a result, the power bank does well enough to get about 5,250mAh of Output power capacity that you can actually use, so it does a 70% efficient transfer of power.

With a 5,250mAh amount of power that you can actually use, this power capacity is very useful to charge most smartphones because it can charge lots of smartphones about 2.5 times.

To be honest, to get the best experience with this portable charger is best to use smartphones most of the time because you’ll get multiple uses from it before the charger is going to need recharging.

With that said, the Coocheer charger is actually still good to charge tablets like iPads but it’s important to know that they most likely won’t be able to charge to their full power capacities.

The iPad Mini 4 will be able to charge to its full power by using the entire power capacity of the power bank and the iPad Mini 2 will get close at about 85% of power.

Charging full-Sized tablets will result in them charging to half their power.

DevicesCoocheer 7,500mAh Rugged Power Bank
(Output Capacity = 5,250mAh)
Phone CapacityCoocheer 7,500mAh Rugged Power Bank Left Over Capacity after One Charge

# of Full Charges for the Device
iPhone SE5,250mAh1,624mAh3,626mAh Left Over

3.2 Full Charges
iPhone 65,250mAh1,810mAh3,440mAh Left Over

2.9 Full Charges
iPhone 6 Plus5,250mAh2,915mAh2,335mAh Left Over

1.8 Full Charges
iPhone 6s5,250mAh1,715mAh3,535mAh Left Over

3.0 Full Charges
iPhone 6s Plus5,250mAh2,750mAh2,500mAh Left Over

1.9 Full Charges
Samsung Galaxy S65,250mAh 2,550mAh2,700mAh Left Over

2.0 Full Charges
Samsung Galaxy S6 Edge5,250mAh2,600mAh2,650mAh Left Over

2.0 Full Charges
Samsung Galaxy S75,250mAh3,000mAh2,250mAh Left Over

1.7 Full Charges
Samsung Galaxy S7 Edge5,250mAh3,600mAh1,650mAh Left Over

1.4 Full Charges
Samsung Galaxy S8+5,250mAh3,500mAh1750mAh Left Over

1.5 Full Charges

Output Charging:

For a rugged power bank, we give the Cocheer charger credit because it has 2 charging ports and even though we don’t like the way that each of the charging ports has it’s own fixed charging speed, having the ability to charge 2 devices at once while your in the wild frontier can be very helpful.

5V/2.1A Charging Port:

This charging port is going to be the most helpful to charge any device at the fastest charging speed. So if you’re only charging a single device with this power bank, then use this charging port because it gives out the most power.

With that said, this isn’t Quick Charge and this power bank doesn’t even feature Quick Charge tech so it won’t be able to charge your Quick Charge smartphones at their max charging speeds.

With that said, it’s going to do a pretty good job at delivering noticeable speeds and this is very helpful for when you want to charge tablets.

5V/1.0A Charing port:

This 1 Amp charging port should only be used when you’re charging 2 devices at once because it delivers a very slow charging speed. So when you are charging 2 devices at once, just know that whatever device that you do connect to this charging port will be charging slowly and that the 2.1 Amp port is going to be the most helpful port for faster charging.

Input Charging:

The recharging is slow because the power bank has a recharging rate of 5V/1.0A and as long as you’re using a 1 Amp wall charger or higher, it’s going to recharge to its full power within 6-7 hours.

Similar Waterproof Power Bank


Size and Weight:

The Coocheer power bank isn’t exactly large but it is bulky.

It has a length of 4.5 inches, a width of 2.6 inches and a thickness of 1 inch. The weight of the power bank is 9.3 ounces. So you can hold it in your hand but we find that the weight and the thickness make is uncomfortable to hold after a while.

So it’s going to be best to just latch the charger onto your backpack, which is thankfully possible with this rugged power bank. Let’s go over the functional components.

Functional Components:

The charging ports can be found under a waterproof flap that covers them. Under the charging ports is where you’ll find the 2 USB charging Output ports and the Micro-USB Input port all packed together quite closely.

Out in the open is the flashlight that is found right next to the waterproof flap, the power button is on the long side of the charger and there are 4 Blue LED power capacity indicators on top of the power bank. You need to press the power button to begin charging, and the power button also turns on the flashlight when you hold the power button down.

At the top of the power bank is where there’s a Lanyard hole that is perfect to use a carabiner or rope on so you can connect the charger to your backpack and not have to hold it.

EasyAcc 20,000mAh Rugged Power Bank


Structure and Material:

Of course, the main attractions of this power bank is just how well it’s built.

It’s a shockproof, waterproof and dustproof kind of power bank. This is because there’s a very thick rubber outer shell and also the center of the power bank is made of Aluminum, and as a result, if you drop the power bank and it won’t get damaged.

Also, it’s waterproof when you cover the charging ports with the charging flap. With that said, Coocheer doesn’t specify just how waterproof it. It can withstand water that gets on it or if water is splashed on it. However, the power bank cannot withstand immersion in water.


It makes use of the necessary safety technologies that make charging safe like Over-Charge, Short-Circuit, and Over-Current protection, as well as other safety technologies.

Griffin Survivor 10,050mAh Rugged Power Bank


For the most part, we think that this CooCheer power bank is very reliable for those times when you’re deep in the wild and even those times when you’re not in the wild. We say that because it’s vital for our electronics to be safe and that can be done with this charger.

No matter if you drop it or get water on it, it’ll still function the same way and that is only starting to be the case with some smartphones these days. The other parts of the Coocheer power bank aren’t that great but the use of 2 charging ports is very helpful when you need to charge 2 devices at once.

Similar Rugged Power Bank



The power capacity goes through a normal conversion rate, but it’s still able to provide lots of power to most smartphones to charge about 2 times or more. We like that the CooCheer rugged power bank makes use of 2 charging ports even though they each of have their own set charging speeds.


It’s actually quite small, but can be quite heavy. The main problem with its size is that it’s bulky. With that said, it’s very nice to use because it has a flashlight and it has a Lanyard Hole that you can use a Carabiner on and connect to your backpack.


The best part of the power bank is just how well it’s built because it can take falls and water too. However, it should not be immersed in water because that can cause damage.


Even though it’s larger and heavier than most normal power bank, we think that the Coocheer power bank can still reliable in a wild outdoor setting as much as a normal everyday one.

All Rugged/Waterproof Power Bank Reviews

Specs of the Coocheer 7,500mAh Rugged Power Bank:

  • Capacity:            Advertised: 7,500mAh            Output Capacity: 5,250mAh
  • Output:

Port 1: 5V/2.1A

Port 2: 5V/1.0A

  • Input:      5V/1.0A Via Micro-USB Input Port
  • LED Power Indicators: 4 LED Dotted Power Capacity Indicators
  • Size: 4.5 x 2.6 x 1 inches
  • Weight: 9.3 Ounces


The Coocheer power bank does quite well in all of its areas, and even though it doesn’t go exceeding expectations, it meets them just at the line and that means a lot.

The power capacity is enough to use a few times over, it has 2 charging ports, and the build quality can take whatever you throw at it.