Glossary

Gel batteries

- Batteries where the electrolyte (mix of water and sulphuric acid) is absorbed in a gel. As they are entirely maintenancefree and rarely produce gas, Gel batteries can be fitted anywhere. Extra gas extraction is not necessary. Gel batteries are highly suitable for lighting and as onboard service batteries, and can be charged very quickly thanks to their special construction. A Gel battery is very suitable for (deep) cycle usage

Gas voltage

- The voltage level at which a battery starts producing gas. At at an ambient temperature of 20 ºC, the gas voltage is 2.4 V per cell or 14.4 V for a 12 V battery and 28.8 V for a 24 V one.

Galvanic Isolation

- A situation where two circuits are electrically connected without their grounding or earth coming in contact. Galvanic isolation is best achieved by means of a transformer.

GMDSS

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