| Characteristic | Battery life in mAh |
|---|---|
| Energizer Ultimate Lithium | 3,312 |
| VARTA Professional Lithium | 2,912 |
| VARTA High Energy Alkaline | 2,328 |
| Costco Kirkland Signature | 2,302 |
| Ikea Alkalisk* | 2,269 |
| Morrisons Extra Long Life | 2,257 |
| Energizer HiGHTECH | 2,229 |
| Duracell Plus Power | 2,214 |
| Duracell PROCELL | 2,148 |
| Sanyo Advanced Alkaline | 2,141 |
| Duracell Ultra Power | 2,137 |
| Asda Long Life Super Alkaline | 2,117 |
| Kodak Xtralife | 2,106 |
| Superdrug Longer Life | 2,104 |
| Toshiba Super Alkaline | 2,103 |
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Release date
June 2015
More information
Region
United Kingdom
Survey time period
2015
Supplementary notes
Milliamp hour (mAh) is a unit for measuring electric power over time, commonly used to describe the amount of energy stored in a battery. All batteries were tested under controlled conditions at a drainage rate of 200 mA until a cut-off point of 0.8 volts. All batteries had expiration dates well into the future.
While the two Lithium batteries that were tested took the top two spots with more than 2,900 mAh, the Alkaline batteries tested ranged between and 2328 and 1491 mAh. Comparatively, none of the sixteen Zinc batteries tested held a charge in excess of 669 mAh.
Although the Lithium batteries had the longest battery life, the fact that they are usually more expensive than Alkaline batteries meant that they were not the most cost effective of the batteries tested. That honor went to the Ikea Alkalisk, which provided the longest battery life per pound spent.
* Listed as "Alkalisk" on Ikea website; sold in stores as "Ikea Alkaline".
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