They should be made of lead and ensure secure fit. Problems can arise when a spontaneous disconnect the cable from the failure of the design of contacts, creating unnecessary resistance to the current, for example when installing steel or contact with their oxidation. However, and expensive batteries when they are improperly installed and operating, as well as bad service does not serve you for a long time. But this is a topic for another notes. Here I would like to talk about batteries, the company Vetus, as an example of standard quality.

All batteries Vetus company designed specifically for use on board ship. Minimal self-discharge differ and able to start the engine after a long winter. Unlike automobile batteries, ship often used with the engine off (provided the work of pumps, lights, ventilation, etc. marine equipment), and therefore more likely to be deeply discharged. Vetus Batteries are designed so that they can operate continuously under heavy loads, and then another and start the engine. An important characteristic of these batteries – they do not need to add electrolyte, as get on board and filled with enough for a lifetime. Therefore, their body is sealed, except for small holes for ventilation.

Not also requires cleaning the terminals and then there is no need batteries to operate. Other useful features of batteries Vetus: they are lighter and smaller than conventional battery charged and ready to sell the work. Maintenance-free batteries, lead-calcium type – Universal When installing on-board 2 separate batteries for engine starting and lighting, both have a shorter battery life.