The casing is made of a combination of hard anodized aluminium and Policatal (POM C).
Policatal (POM C) is a light and extremely durable polymer resistant to mechanical damage.
The aluminium alloy used in ACCU THERMO is light, durable and resistant to corrosion in sea water.
Additionally, the aluminium elements of ACCU THERMO have been covered with a protective layer of a hard anode. It makes the battery even more resistant to wear and mechanical damage.
All graphics and inscriptions on the casing are laser-engraved, which makes them easy to read, as well as highly durable.
 The ACCU THERMO 24 casing is secured with two O-rings.