Quality AA Alkaline powerlife batteries from Philips. The alkaline-technology provides extra power for battery-operated sex toys running.
Alkaline-batteries are six times better than the previously used zinc-carbon batteries. The batteries stay fresh for up to 5 years.
All batteries experience a certain loss of energy when not in use. Philips guarantees that their Alkaline powerlife battery maintains 80 % of their original energy in the period up to their last use by date.