GP Ultra AAA Review: High capacity
Verdict
Decent overall chapters shows that the GP Ultra AAA could exist suitable for less demanding tasks, but fluctuating results in my high-drain tests results in a low average capacity for more enervating jobs. Price-wise, they're decent, but other batteries performed better in my tests.
Pros
- Skillful value
- High overall capacity
Cons
- Low high-bleed result
- Big variance in tested batteries
Availability
- UK RRP: £eight.99
Central Features
- Bombardment blazon These are AAA alkaline (not-rechargeable) batteries.
Introduction
The GP Ultra AA batteries are some of the best I've tested, so I had high hopes for the GP Ultra AAA'southward performance. Overall, total capacity in my tests was good, only the initial high-bleed test didn't evangelize the results I'd hoped for.
These batteries are available in a wide range of pack sizes and compete well on toll against both the large names and upkeep brands. To test these batteries, I bought a pack from Amazon and then ran them through my bombardment tester.
Functioning
- High-drain test was a piddling disappointing
- Overall chapters is excellent
GP quotes the performance of the Ultra AAA equally a service life of 18.5 hours, based on a xx-ohm discharge resistance, quoting a starting voltage of 1.6V down to an end-signal of 0.9V. These figures are quoted within 30 days of manufacture, so with a shelf-life of 10 years, await some variation in packs that you lot purchase.
I measured the starting voltage of the batteries that I bought at 1.52V, which is above the 1.5V threshold that I'd expect for alkaline batteries.
To test capacity, I used an Ansmann Energy Ninety-3000 tester, which runs a battery drain at 600mA (+/- 20%), catastrophe at a voltage of 0.94V. This is a relatively high bleed. Afterward the initial test, I plant the batteries had an initial capacity of just 364mAh – that's about 200mAh less than the Amazon Nuts Alkali metal AAA.
Looking at the results, there was a slap-up bargain of fluctuation in each of the batteries tested, with the highest returning a capacity of 523mAh and the lowest 243mAh.
I then left the batteries for a few hours to cool down, thereafter re-running the test to run across if at that place was any current remaining. Here, I recorded the GP Ultra AAA with 234mAh, giving a full capacity of 598mAh. That's actually the highest total capacity of whatever of the AAA batteries I've tested.
My results would suggest that these batteries are better for low-drain devices, such every bit remote controls, rather than higher-drain usage in such items as a torch.
Latest deals
You lot can purchase the GP Ultra AAA in pack sizes of between four batteries (effectually 88p per battery) up to a 40-pack (effectually 35p per battery). I've listed the 20-pack hither (around 45p per bombardment), since information technology'due south a good remainder between the total number of batteries and price.
Should y'all purchase information technology?
If you want branded batteries for depression-drain use, such as remote controls, then these have a high-chapters in my tests.
If you want more than flexible batteries, at that place are AAA batteries that have similar overall capacity but that performed better in our loftier-bleed examination.
Concluding Thoughts
Overall price and chapters are very adept, just the GP Ultra AAA didn't perform specially well in my high-drain tests. On balance, the Amazon Basics Alkaline AAA are a better option, with similar overall chapters but much amend high-bleed results.
How nosotros test
Unlike other sites, we test every alkaline metal bombardment we review thoroughly over an extended menstruation of time. We use standard tests to compare features properly. We'll always tell you what we find. Nosotros never, e'er, accept money to review a production.
Find out more about how we test in our ideals policy.
We use an Ansmann Energy XC 3000 to drain batteries, and then that we tin can test capacity in mAh. After the kickoff run, we permit the batteries to cool and so retest to give the states a 2d reading.
We measure the initial voltage of the batteries, checking that the starting voltage is at least ane.5V.
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