Deep Cycle

In Articles, Technical by Glyn DemmerLeave a Comment

Okay so I have had so many queries about deep cycle batteries, even more so now that people are installing home inverters with the spate of load shedding, so as a layman lets look at what is the ultra marathon style battery!

Unlike the cold cranking option fitted to your car which is designed to give a large quick current to start the car and would then require recharging (with a single start your alternator would be required to recharge this battery by driving or running the engine for at least 15-3-0 minutes) your deep cycle battery however delivers a long steady stream of power, thus it’s great to run your fridge or lights over an extended period, this type of battery should remain charged and can be recharged over a few years. When fitting a dual battery system with a deep cycle battery one should fit a battery monitor and ensure that the correct amperage cables are used.

Well the average deep cycle battery stores around 3 times more power than a cold cranking battery and delivers around 50 % of its power before needing to be recharged. However look for the ‘antimony” style batteries with thicker plates and a slightly different chemical composition, they are longer lasting and do deliver a charge to at least 75% of the rated capacity.

A battery does however need looking after do not discharge it completely and when recharging rather select a slower charge option ,bear in mind that they are expensive and need TLC to keep them going!


About the Author

Glyn Demmer

My first 4x4 was a Nissan Hardbody thereafter I started travelling all over the country. In 1992 we held a big 4x4 day with hundreds of Nissan families, and then the 4x4 bug really bit. A friend Monty Brett and I started running 4x4 courses at the Hennops Off-road Trail just outside of Johannesburg. At first we offered day-and-a-half courses that started on Friday afternoon and finished on Saturday afternoon. Hannes Grobler the Rally Ace regularly assisted, and we reached a nice balance between our two styles and our skills.

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