Staying power: rechargeable batteries tested

Posted on 15 August 2014

Which rechargeable AA batteries last longest? We charged them up, loaded them into identical Mini Maglites, turned on the lights and waited to see how long they took to run flat.

Milliamp hours (mAh) is a unit of measurement for electric power over time. Put simply, it tells us the amount of energy stored inside the battery – the higher the number, the better the battery’s lifespan.

Screen Shot 2014-08-15 at 7.39.07 AM

Torch test winner

GP Professional

Getaway Rechargeable Batteries - MvZ-2

mAh: 2500

Torch test results: 5 hours, 33 mins

Cost per battery: R34,98

 

Best value

Energizer

Getaway Rechargeable Batteries - MvZ-1

mAh: 1400

Torch test results: 3 hours, 50 mins

Cost per battery: R23,47

 

 

Uniross

Getaway Rechargeable Batteries - MvZ-3

mAh: 2100

Torch test results: 3 hours, 39 mins

Cost per battery: R35

 

Duracell

251075_BB_01_FB.EPS_1000

 

mAh: 2450

Torch test results: 4 hours

Cost per battery: R32,49

 

Logik

511351

mAh: 1200

Torch test results: 3 hours, 17 mins

Cost per battery: R34,99

 

Super Power

Getaway Rechargeable Batteries - MvZ-4

mAh: 2500

Torch test results: 4 hours, 26 mins

Cost per battery: R22,49

Although these batteries should have won the Best Value award, we found them to be irregularly shaped, with some not fitting the Maglite torch.






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