This is a compact battery with good capacity and a good charging speed (test results are included at the end of the review) and it has a short built in cable. This is a type of battery I like carrying in my purse: slim size and fairly big capacity.
♦ size: 5" x 2.5" x 0.5"
♦ weight: 4.85 oz
♦ number of ports: 2 (one vis built-in cable, one generic)
♦ flashlight: no
♦ pass through charging: yes (i.e. the battery can charge while being charged itself)
♦ cable: 11" charging cable
The power pack has a bright charging level indicator which can be turned on with a push and goes off quickly.
To see how well different chargers and external batteries charge my mobile devices I use a Nexus phone and an iPadMini to test each of them. I do my tests with the devices charged to the same level, running the same applications and using the same cables to keep everything the same. This allows me to compare them to each other in a fair way. I use the current monitor to see what current is delivered to each device which tells me how well each external battery is working.
In these tests OLALA battery did quite well for both devices, especially the phone. For the phone both the built-in cable and included charging cable showed optimal performance.
I tested to see if the battery supports pass-through charging (i.e. whether the battery can charge mobile devices while it is being charged). Yes, it can charge while being charged.
I also checked whether the enclosed cable is a data cable or a charging cable. This makes a big difference when charging Android devices. In a charging cables the two data connections are shorted together (rendering the cable useless for data transfer), but this fools devices to see the cable as an AC power connection and thus the battery accept a higher current for charging. Most of the time external batteries come with a charging cable, but every now I run across a manufacturer that encloses data cables with external batteries. It is not easy to tell what cable you got unless you have a current monitor. I always include this test in my reviews so people can improve the performance of the battery by switching to a charging cable. Good news in this case - OLALA package includes a charging cable.
Samsung Nexus phone:
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charging cable : 1.03A/5.01V (excellent)
built-in cable: 8% upcharge in 10 minutes (excellent)
(for comparison the best charging monitor result for this phone is 1.00A/5V)
iPad Mini tablet:
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my own cable: 1.25A/5.06V (good)
(for comparison the best charging monitor result for this tablet is 1.70A/5V)
To summarize: compact, fast charging, good capacity. I like it!
You can find it on Amazon by following this link.
Ali Julia review ★★★★★
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