Wired... Clearly, these cheaper batteries are not nearly as good as the more expensive ones. Ok, but what about the total energy? If I integrate these three curves, I get the following stored energies:
- DG (Dollar Store) = 2983 Joules (0.829 Watt*hours).
- Energizer = 10,798 Joules (3.00 Watt*hours)
- Duracell = 9,398 Joules (2.61 Watt*hours)
It seems that maybe the Duracell and Energizer are essentially the same. Yes, the Energizer has a higher stored energy, but it also has that small jump in the current that may or may not be real. Other than that current hiccup, the curves for those two batteries look quite similar.
Are They Worth It?
Yes, the better batteries have more energy. But how much do they cost? First, for the DG batteries. I thought these were a great deal since they cost $4 for a pack of twenty. That is 20 cents per battery. You can’t beat that with a stick. What about the energy per dollar? Really, you are paying for energy – right?
