The new rechargeable CORE battery (£30) is designed for the TIKKA2 and ZIPKA2 line of headlamps. It is easily inserted into the headlamp in a few seconds in the place of the standard AAA batteries. The Lithium Ion Polymer technology guarantees a lifetime that is equivalent to 900 regular batteries which saves you money and makes an efficient contribution to limiting toxic waste in the environment. A zipka headlamp, opened out to show where the CORE unit clips into place A standard USB connection allows the CORE battery to be recharged almost anywhere: from a wall plug, a car's cigarette lighter/12V outlet, a solar panel, a portable energy source, a computer, etc. and an LED battery charge indicator shows the precise energy level remaining in the CORE battery at any time. What makes CORE really special, however, is the customisable discharge of the battery using the Petzl OS software that can be downloaded for free from the petzl website. This allows you to tailor the battery l...