GP Ultra AA Review: Lots of power and great value
Verdict
Excellent value and available in a wide-range of pack sizes, the GP Ultra AA batteries proved to be high capacity in my tests, and are suitable for high- and low-drain applications. There are some batteries that had higher capacities from my initial drain tests, but the overall flexibility and toll of the GP Ultra AA makes them the current all-time choice.
Pros
- Low price
- High capacity
- Available in broad range of pack sizes
Cons
- Higher bleed batteries bachelor
Availability
- United kingdom RRP: £8.99
Fundamental Features
- Battery type AA alkaline metal batteries (non-rechargeable)
Introduction
The GP Ultra AA series of batteries are designed for all types of use, from high power devices to lower-drain items. Available in a wide range of pack sizes, these batteries can often be plant online at very competitive prices. According to the company, batteries have a shelf life of up to 10 years.
To test these batteries, I bought a set from Amazon and then ran them through a battery testing device to measure total chapters.
Performance
- High overall chapters
- Good high-drain performance
- High risdual capacity
According to GP, these batteries have a service life of xix.5-hours, based on a 10-Ohm discharge resistance. This makes the batteries designed for use in power-hungry devices.
Starting voltage is quoted at 1.6V, although that'due south within thirty days of manufacture. I tested the batteries that I bought at a starting voltage of 1.55V, which is to a higher place the i.5V minimum that you'd wait from alkaline metal batteries. Voltage continues to drop while the batteries are in employ, with GP quoting an cease-bespeak voltage of 0.9V.
To requite a fair comparison between batteries, I measure out their capacity in mAh using the Ansmann Energy Ninety-3000 battery tester to run a drain test on four batteries plucked randomly from the package that I bought. Draining at 600mA (+/- 20%) I institute that the initial drain resulted in an boilerplate of 1302.25mAh, ending with the batteries at 0.94V. This is the tertiary-highest initial capacity that I've seen in my tests.
Afterward leaving the batteries to rest for a few hours and cool down, I re-ran the test to see if in that location was any charge left. Hither, I got an boilerplate of 378.25mAh, giving a total capacity for these batteries of 1680.5mAh – the highest of all element of group i batteries that I tested.
What this shows is that the GP Ultra AA are very skilful for high-bleed applications, such every bit remote command devices and torches, equally the initial examination shows. The second bleed test to get the total capacity is very high, and so these AA batteries can power low-bleed devices, such as remote controls for a long time.
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Should y'all purchase it?
If you desire skillful-value batteries that are suitable for all jobs, so these are the AA batteries to purchase.
If you just desire high-bleed performance, then in that location are AA batteries that will yield a higher initial chapters in my bleed tests.
Final Thoughts
A combination of loftier capacity, plus a low price makes the GP Ultra a winning combination in my tests, and the best set of AA batteries that you can currently purchase. They'll work well in both high- and low-discharge environments giving you flexibility.
How we examination
Different other sites, nosotros test every alkaline bombardment we review thoroughly over an extended period of time. We utilise standard tests to compare features properly. We'll always tell you what we find. We never, ever, accept money to review a product.
Notice out more about how we test in our ethics policy.
We employ an Ansmann Energy Ninety 3000 to drain batteries, so that nosotros can exam capacity in mAh. Afterwards the first run, we allow the batteries to cool and and so retest to give us a 2nd reading.
We measure out the initial voltage of the batteries, checking that the starting voltage is at least 1.5V.
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Source: https://www.trustedreviews.com/reviews/gp-ultra-aa
Posted by: kennedydoevall.blogspot.com
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