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Subject Topic: Truma heater battery usage Post Reply Post New Topic
PersonJake Drummond
22/1/2015 at 6:36pm
 Location: Fifeshire
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Our Truma heater is rated with a 1.1ah current draw. I have 2 x 80ah batteries fitted, reading over 13v when off charge according to the LED readout.
How long should the batteries allow the Truma to run?

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Personnavver
22/1/2015 at 7:42pm
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Assuming fully charged and nothing else using power,

(80 + 80) / 1.1 / 2 = 72 hours.

However, you probably will use other things and the batteries won't be fully charged and low temperature will reduce it. But it's a useful guide.


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