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Motorhome Solar Power System Issue
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<blockquote data-quote="PabloP" data-source="post: 240656" data-attributes="member: 4430"><p>You got me there Condor, too late at night. At about 4am this morning my sub-conscious woke me up and said "richard cranium", it was 150a at 12v, not 240. So I did some quick maths in my head and worked out that 150 x 12 = 1800watts. If the inverter was running at about 40> 50% efficiency then that would relate to a 1000W microwave, which is not unusual.</p><p></p><p>So here I am writing this at 6am as I could not get back to sleep (DH).</p><p></p><p>I was thinking that if the microwave was being used at night, or when there was no opportunity to recharge the batteries, then over time this would result in battery deterioration more quickly than would be normal. Plus I was wondering if there was a diesel heating system, running at night (hot water, stove, room heater), like we both know about, as they really chew the juice during the glo-plug starting phase and a lesser amount when up and running.</p><p></p><p>So one or more batteries may be losing the ability to hold a charge and drawing the others down overnight. As a quick fix perhaps run the vehicle motor while using the microwave, will offset the drain a bit and see what impact this has on the morning voltage/charge remaining.</p><p></p><p>I will leave it up to you to work this one out.</p><p></p><p>Rob.</p></blockquote><p></p>
[QUOTE="PabloP, post: 240656, member: 4430"] You got me there Condor, too late at night. At about 4am this morning my sub-conscious woke me up and said "richard cranium", it was 150a at 12v, not 240. So I did some quick maths in my head and worked out that 150 x 12 = 1800watts. If the inverter was running at about 40> 50% efficiency then that would relate to a 1000W microwave, which is not unusual. So here I am writing this at 6am as I could not get back to sleep (DH). I was thinking that if the microwave was being used at night, or when there was no opportunity to recharge the batteries, then over time this would result in battery deterioration more quickly than would be normal. Plus I was wondering if there was a diesel heating system, running at night (hot water, stove, room heater), like we both know about, as they really chew the juice during the glo-plug starting phase and a lesser amount when up and running. So one or more batteries may be losing the ability to hold a charge and drawing the others down overnight. As a quick fix perhaps run the vehicle motor while using the microwave, will offset the drain a bit and see what impact this has on the morning voltage/charge remaining. I will leave it up to you to work this one out. Rob. [/QUOTE]
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Outdoor & Recreation
Campers, Vans & 4WD's
Motorhome Solar Power System Issue
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