Test of Tesco (UK) Long Life/Extra Long Life

There are 2 types of own brand Alkaline in Tesco right now,

Extra Long Life @ £2.50 4pk

and Long Life @ £1.50 4pk

Tesco Long Life Alkaline AA
500mA 1468mAh
1A 1020mAh

Tesco Extra Long Life Alkaline AA
500mA 1525mAh + 6.79272%
1A 1086mAh + 6.47059%


Tesco Long Life Alkaline AAA
200mA 822mAh
500mA 537mAh

Tesco Extra Long Life Alkaline AAA
200mA 821mAh - 0.121655%
500mA 574mAh + 6.89013%

So spend 66.6% more and you only get an extra 6.5% ish life (with the exception of the AAA Extra at 200mA, might test that again)

All my results on my funny looking site, all batteries bought in the UK.

Interesting. Yeah, kinda figured most “extra” anythings don’t justify the higher prices, but never put it to an actual test.