...And there was light. There was still nothing, but at least we could see it a whole lot better...


Ruggidised Batteries

    • LexBatt Special Edition
    • LexBatt Special Edition

The L*xBatt Range of Ruggidised Batteries

Machined from solid Delrin engineering plastic and 6061-T4 aluminium, these batteries are watertight and ultra tough.  

The cable entry is designed not to allow any ingress of water in to your batteries, even if the cable itself is damaged!

At ArcEye we view the cable as a consumable part of these batteries and have designed the battery to allow for the replace-ability of the wire.

These ruggedised battery packs come in both 14.8v for ArcEye lamps and 7.2v versions, as replacement batteries for other suitable lamps.


  • 14.8v or 7.2v
  • 115 Watt hours
  • 12 high quality Li-ion 18650 cells with protection circuits

Our largest capacity battery pack.

It is ideally suited for extended expedition use where charging may be inconvenient


The LmxBatt

  • 14.8v or 7.2v
  • 63 Watt hours
  • 8 high quality Li-ion 18650 cells with protection circuits


  • 14.8v or 7.2v
  • 38 Watt hours
  • 4 high quality Li-ion 18650 cells with protection circuits
    • Passing of Nicky Johnson of Aillwee Cave
    • Feb 21 9:20PM
    • Nicky Johnson of Aillwee Cave Visitor Centre and long time member of SUI passed away on Tuesday following a short illness. Nicky was well known to cavers all over Ireland and further afield and will be greatly missed. A funeral service will be held on on Friday February 22 at 11 am in Christ Church, …

      Continue reading "Passing of Nicky Johnson of Aillwee Cave"

    • SUI Newsletter – Underground 93
    • Feb 4 12:46PM
    • The latest SUI newsletter is now available to members! It can be accessed here. Members will receive access details via email.
    • SUI Online Library Update
    • Jan 16 4:03PM
    • As part of the move to a more secure, GDPR compliant membership area for the SUI, the Library functions of the old site were unfortunately lost. The SUI has begun the process of developing a new digital library feature for the website, with useful search features and a more accessible interface. Unfortunately the process will …

      Continue reading "SUI Online Library Update"

    • SUI Committee 2018/19 Elected
    • Nov 9 '18 10:22AM
    • During the SUI AGM hosted at this years SUICRO event the committee for 2018/2019 was elected. Chairperson – Aoife McGuirk Treasurer – Tim O’Connell Honorary and International Secretary – Chris Chapman Membership Secretary – Shane Diffley Training Officer – Artur Lach Public Relations Officer – Adam Prior Northern Conservation Officer – Stephen Sheehan Southern Conservation …

      Continue reading "SUI Committee 2018/19 Elected"

    • Underground 93 – Request for Submissions
    • Nov 7 '18 12:54PM
    • The Deadline for submissions to the next issue of Underground is 11th of January 2019.  Any article related to caving in Ireland (or abroad!) is welcome, be they personal, exploratory, scientific or club exploits and adventures! Please email any articles to undergroundeditor@caving.ie