which is most battery efficient

Submitted: Saturday, Apr 25, 2009 at 21:51
ThreadID: 68214 Views:1881 Replies:2 FollowUps:2
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Hi everyone,
hoping someone can help.Which is most battery efficient,240AC running through inverter or DC direct from 12volt battery, need to run Engal plus other small stuff, battery is AUX cheers Maureen and John
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Reply By: Member - Allan B (QLD) - Saturday, Apr 25, 2009 at 22:05

Saturday, Apr 25, 2009 at 22:05
Whenever you pass electrical power through a device whether it be an inverter, transformer or just a plain wire, there is a loss of energy to be tolerated. Therefore it is always best to be as direct as possible.

So, to directly answer the question ...... Run the Engel direct from 12 volt.

Is that direct enough?


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AnswerID: 361556

Follow Up By: Member - Kiwi Kia - Sunday, Apr 26, 2009 at 07:12

Sunday, Apr 26, 2009 at 07:12
And for a little bit more efficiency on 12 volt, where possible use big fat wires.
FollowupID: 629325

Follow Up By: Axel [ the real one ] - Sunday, Apr 26, 2009 at 10:02

Sunday, Apr 26, 2009 at 10:02
Big fat wires ?? Should read thick [as in lots of copper strands] not thick as in insulation.
FollowupID: 629355

Reply By: Bob of KAOS - Tuesday, Apr 28, 2009 at 23:17

Tuesday, Apr 28, 2009 at 23:17
M and J

Interesting question.

I have already demonstrated my lack of knowledge re Engels but here goes again.

The compressor in the Engel actually runs on 240V AC. The Engel contains an inverter that supplies this current.

From a US site:

"Power Inverters

Never use a commercial inverter or converter to operate your Freezer Fridge on AC, as these devices do not hold the required constant frequency. These electrical supplies generate high ripples or surge voltages that could result in damage to your Freezer Fridge."


AnswerID: 362162

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