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INIU B1-B5 Review

This portable charger has a large display and a USB-C port but we weren't too impressed with its performance in our capacity test
INIU B1-B5
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Price:   $28 List | $27.99 at Amazon
Pros:  Large display, USB-C port, fast charging capable
Cons:  Large, poor performance in our recharge test
Manufacturer:   INIU
By David Wise and Austin Palmer  ⋅  Jan 19, 2021
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39
OVERALL
SCORE


RANKED
#15 of 16
  • Portability - 40% 3
  • Capacity - 30% 3
  • Added Convenience - 20% 6
  • Recharge Time - 10% 6

Our Verdict

Overall, we weren't particularly thrilled with the performance of the INIU BI-B5. While it does have some unique features, like a large display, integrated flashlight, and compatibility with some of the newest fast-charging standards, it delivered mediocre results in our resistive load capacity test and is a bit large and clunky to carry around.

Compare to Similar Products

 
INIU B1-B5
This Product
INIU B1-B5
Awards  Editors' Choice Award  Editors' Choice Award Best Buy Award 
Price $28 List
$27.99 at Amazon
$36 List$22 List$20 List
$16.19 at Amazon
$20 List
$19.99 at Amazon
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Pros Large display, USB-C port, fast charging capableRecharges quickly, great capacity, highly convenientInexpensive, super easy to carry in a pocket, short recharge timeTiny, inexpensive, extremely portableGreat value, USB-C/microUSB charging input, dual outputs
Cons Large, poor performance in our recharge testCould fit a little better in a pocketNo integrated cables, can only charge a single device at a timeNo added features, low discharge rateTakes a long time to recharge, not the highest power output
Bottom Line This portable charger has a large display and a USB-C port but we weren't too impressed with its performance in our capacity testThe best of the best, this is our favorite when it comes to portable battery packsIf you want a bare-bones portable charging solution without breaking the bank, this is the battery for youIf you want the most portable battery possible, then this petite power pack should be your first choiceIf you are searching for a great value, then we strongly recommend checking out this set of power packs
Rating Categories INIU B1-B5 Jackery Bolt 6000 Anker PowerCore 5000 Anker PowerCore+ mi... 2-Pack Miady 10000
Portability (40%)
3.0
8.0
9.0
10.0
7.0
Capacity (30%)
3.0
7.0
6.0
5.0
6.0
Added Convenience (20%)
6.0
7.0
3.0
3.0
5.0
Recharge Time (10%)
6.0
9.0
10.0
6.0
4.0
Specs INIU B1-B5 Jackery Bolt 6000 Anker PowerCore 5000 Anker PowerCore+ mi... 2-Pack Miady 10000
Output 1 Power Delivery (USB-C):
5V / 3A
9V / 2A
12V / 1.5A
5V / 2.4A 5V / 2A 5V / 1A 5V / 2.1A
Output 2 USB-A
4.5V / 5A
5V / 4.5A
9V / 2A
12V / 1.5A
Built in micro
5V / 2.1A
N/A N/A 5V / 2.1A
Output 3 USB-A
4.5V / 5A
5V / 4.5A
9V / 2A
12V / 1.5A
Built in lightning
5V / 2.4A
N/A N/A N/A
Output 4 N/A N/A N/A N/A N/A
Input USB-C:
5V / 3A
9V / 2A
12V / 1.5A
5V / 2A 5V / 2A 5V / 1A Micro USB/USB-C: 5V/2A
Dimensions 5.25" x 2.5" x 1" 4.25" x 1.9" x .83" 4.2" x 1.3" 3.75" x 0.9" 5.49"x2.64"x0.63"
Measured Weight 12.25 oz 5.67 oz 4.71 oz 2.88 oz 7.69 oz
Measured Charge Time 360 min. 195 min. 150 min. 280 min. 405 min.
Model BI-B5 Bolt 6000 A1109 A1104 TPB21C
Capacity 20000 mAh 6000 mAh 5000 mAh 3350 mAh 10000 mAh

Our Analysis and Test Results

The INIU BI-B5 does have a unique feature in that it includes a separate USB-powered flashlight if you need even more illumination than what the along with the integrated LED can provide.

Performance Comparison


This battery includes a few extra convenience features.
This battery includes a few extra convenience features.
Credit: Laura Casner

Portability


Our first series of tests for these chargers focused on how portable they are. We based scores on the size and weight of each charger, as well as how comfortable they are to carry around in a pocket. The INIU BI-B5 is one of the larger and heavier chargers of the group, earning it a below-average score.


This INIU BI-B5 measures in at 5.25" x 2.5" x 1". It tips the scales at just over 12 ounces, making it considerably heavier than average.


Overall, we don't think this charger is comfortable to carry around in a pocket. It's about the same size as three smartphones stacked up and is definitely noticeable in the front or back pocket of a typical pair of pants. It is particularly uncomfortable to sit down while the INIU BI-B5 is in a back pocket.

We like the large digital display on this portable charger.
We like the large digital display on this portable charger.
Credit: Laura Casner

Capacity


Next, we looked at the charging capacity of each portable charger, using both a resistive dummy load and by looking at the number of device charges we could get out of each power pack compared to the manufacturer's claims. Unfortunately, the INIU BI-B5 again scored quite below average.


The INIU BI-B5 is rated as having a 20,000 mAh capacity but we got considerably less than that in our test. We set the dummy load to a 2.4 amp draw and the INIU BI-B5 was completely depleted after 2 hours and 22 minutes. This meant it only provided 5699 mAh or 28% of its rated capacity.

However, this battery did much better in our device charging tests. We were able to completely charge a Samsung Galaxy S8 5 times, outperforming the claims of 4 charges made by other 20,000 mAh battery packs.

The included accessories with this battery.
The included accessories with this battery.
Credit: Laura Casner

Added Convenience


Our next metric focused on any other features these chargers might have that make them more convenient to use, such as if you can charge multiple devices simultaneously, if there is a flashlight, and if there are any integrated cables/plugs. We also looked at the warranty period for each charger. The INIU BI-B5 did quite well, earning a score just above-average.


This portable power pack can charge up to three devices at once with its pair of USB-A ports and a single USB-C port. It has a built-in flashlight, as well as a USB-powered brighter light. It also has a large digital readout that shows the battery level and a 3-year warranty.

This battery includes an additional LED light.
This battery includes an additional LED light.
Credit: Laura Casner

However, this charger doesn't have any integrated cables or power plugs for recharging.

This battery can charge multiple devices at the same time.
This battery can charge multiple devices at the same time.
Credit: Laura Casner

Recharge Time


Our last metric scored each charger on how long it took to recharge, comparing the manufacturer's claims with our measured results. The INIU BI-B5 again did alright, earning a score just above average.


This battery took around 360 minutes using the included USB-A to C cable plugged into a typical charger, which aligns quite well with the manufacturer's claims. They state that the INIU BI-B5 should take around 6 hours to charge with an 18-watt power adapter, 10 hours with a 2 amp charger, and 20 hours with a 1 amp charger.

All in all, we weren't overly impressed with the performance of this...
All in all, we weren't overly impressed with the performance of this portable charger.
Credit: Laura Casner

Value


While this is one of the lower-cost power packs out there, there are other models that performed considerably better and we would recommend those to anyone shopping on a budget.

Conclusion


While the INIU BI-B5 does have some interesting and unique features, its overall performance makes us reticent to recommend it and we found other portable chargers that we vastly preferred.

David Wise and Austin Palmer