The best battery in South Africa – MyBroadband Test

The Advertising Standards Authority of South Africa recently instructed Duracell to withdraw advertising stating its batteries “last up to 10-times longer”, as the claim was unsubstantiated.

The ruling raised the question as to how long Duracell batteries last compared to “standard” batteries, and which batteries last the longest.

While putting batteries in a torch and leaving it on until they run flat is a valid test, MyBroadband selected a more robust testing methodology – a computerised battery analyser (CBA).

The CBA uses a PC to accurately test batteries, providing a detailed analysis of the results.


Test setup

For the test, we used the CBA HR, which is designed to test small cells and batteries.

The CBA HR is capable of testing batteries at load currents from 1mA to 1,000mA, (10 watt maximum), in increments of 1mA.

We put a high load on the batteries being tested, and tested the time it took for a 1.5V AA battery to drop below 1.1V, at a discharge rate of 500mA.

The 1.1V limit – when a battery is considered “flat” – was selected based on the suggested test limit for 1.5V alkaline batteries.

We purchased new batteries from all the prominent brands, and put them to the test using our CBA HR test bench.

Battery-Test

Battery Test

Batteries


The results

The results showed that the Energizer Max battery lasted the longest in the test, while an Eveready Gold battery had the shortest life span.

It should be noted that the consistent 500mA discharge rate is considered very high, and lower discharge rates or different testing conditions may yield different results.

The table below shows the discharge rate, in minutes, of the AA batteries we tested.

AA Battery Test
Battery Price per battery Time on 500mA
Eveready Gold R10.00 00:04:13
Philips Long Life R6.00 00:06:03
Duracell Plus Power R19.00 00:50:01
Eveready Platinum R16.00 00:52:03
Eveready Platinum Plus R17.00 00:54:56
Duracell Ultra Power R20.00 01:03:08
Philips Ultra R12.25 01:05:01
Energizer Max R17.50 01:07:10

The best bang for your buck

The table below shows “minutes per rand”, which provides an indication of the value which consumers receive from the batteries.

AA Battery Test
Battery Price per battery Time on 500mA Minutes per rand
Eveready Gold R10.00 00:04:13 00:00:25
Philips Long Life R6.00 00:06:03 00:01:00
Duracell Plus Power R19.00 00:50:01 00:02:38
Duracell Ultra Power R20.00 01:03:08 00:03:09
Eveready Platinum Plus R17.00 00:54:56 00:03:14
Eveready Platinum R16.00 00:52:03 00:03:15
Energizer Max R17.50 01:07:10 00:03:50
Philips Ultra R12.25 01:05:01 00:05:18

Result charts

The charts below show the test data for each of the AA batteries tested.

Eveready Gold – 4 minutes 13 seconds

Eveready Powerplus Gold


Philips Long Life – 6 minutes 3 seconds

Philips Long Life


Duracell Plus Power – 50 minutes 1 second

Duracell-Plus-Power


Eveready Platinum – 52 minutes 3 seconds

Eveready Platinum


Eveready Platinum Plus – 54 minutes 56 seconds

Eveready-Platinum-Plus


Duracell Ultra Power – 1 hour 3 minutes 8 seconds

Duracell-Ultra-Power


Philips Ultra – 1 hour 5 minutes 1 second

Philips-Ultra


Energizer Max – 1 hour 7 minutes 10 seconds

Energizer-Max


Now read: Duracell can’t say its batteries last “10-times longer” in South Africa

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The best battery in South Africa – MyBroadband Test