For caving, the lamp needs to be totally waterproof. We achieve this protection by a tough waterproof battery case, while the battery packs themselves are not waterproof. This keeps the battery packs simple: You'll probably use several battery packs and this way, we keep the cost of the battery packs low as you don't have to pay for waterproofing a number of times. The battery case is machined from a solid block of aircraft grade aluminium: It is lightweight, yet strong as steel. By protecting the batteries from mechanical damage, it ensures safe operation of the high capacity Lithium batteries.
The battery case lid has an o-ring seal, making it watertight.
Steel cable for battery box lid
The cable can be slipped very easily over one kurly knob and is inclusive in each lamp set where the "speleo" battery case is a part of.
