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Subject Topic: battery experts!
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via mobile 13/7/2021 at 4:21pm
 Location: Hatfield Peverel Essex
 Outfit: Ace Supreme Twinstar Disco 3
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Just a word of caution with all these batteries being added-- they must secured and, importantly, sealed from the habitation area.
If not properly sealed there is a risk of explosion from the hydrogen given off when on charge.
DaveS1


13/7/2021 at 5:16pm
 Location: NE England
 Outfit: Citroen Dispatch Campervan plus tents
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Just a note from someone who has a simple set up - we have run our 12v compressor fridge for 3 days off the leisure battery backed by 150w solar in summer. Could likely have gone longer. Only other drain on it was minimal led lighting, usb device charging & occasional tap use.   We have also used the diesel heater on shorter winter trips. Nothing 240v Never got close to flattening the leisure battery. As well as by the solar it is also topped up when driving.

Fortunately it just works as a lot of the advice makes my head hurt!


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via mobile 13/7/2021 at 9:18pm
 Location: derbyshire
 Outfit: Seat Exeo Opus Camper
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To Spiritburner. How big is your leisure battery (amp hours) and which compressor fridge do you use. The OP was asking what size leisure battery he would have to buy to run his fridge in a similar situation to yourself.


14/7/2021 at 12:20am
 Location: NE England
 Outfit: Citroen Dispatch Campervan plus tents
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Fridge is a Dometic CRX50. Battery - 110ah.

Post last edited on 14/07/2021 00:34:51


via mobile 14/7/2021 at 8:01am
 Location: derbyshire
 Outfit: Seat Exeo Opus Camper
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Thanks very much, that should help a lot


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14/7/2021 at 2:06pm
 Location: Nottingham
 Outfit: Coachman VIP 520
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Quote: Originally posted by Derbian on 13/7/2021
Forgot to say. Try looking at Tanya batteries for ideas on make/price they’ve got a good reputation and lots of useful info on the website.



I have had a bad experience with Tayna batteries. My battery failed within the warranty period. This was identified by the dealer carrying out my annual service. They would not accept the evidence from the dealer and I had to jump through hoops to get them to replace it. Also, you have to pay a courier for the return. After extracting more proof of its failure from a friendly local battery supplier, they agreed to collect it and did send me a replacement. Sometimes, it does pay to shop locally.


via mobile 14/8/2021 at 9:45pm
 Location: Yorkshire
 Outfit: None Entered
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Quote: Originally posted by hankakampa on 11/7/2021
Quote: Originally posted by Capt Lightning on 11/7/2021
Thanks for that info. (do you mean a domestic fridge, or a Dometic one? - no matter)

I appreciate the point about warranty, unless perhaps the dealer offers a 12S socket as an option. Then you would have charging facility when the engine was running and you were on the move.

I would be cautious of using an inverter from the starter battery and using that to charge the leisure battery. You might flatten the starter battery.



Its the brand Dometic fridge - not a home fridge although plugged into the mains I suppose it could be used as a fridge in the house.

It has 2 cables, a 240V with 3 pin plug and a 12v with cigarette lighter style plug.
In the camper is a 240v socket that can supply 300w - it comes from the leisure battery already fitted by the manufacturer.

I don't want to run it from the leisure battery - preferring to use that to run the lighting and charge devices, so that the engine battery remains untouched.

So I want to buy a small battery to run the fridge from, that solar can charge that small battery at the campsite and the camper can also charge it anytime else if the the solar won't charge it for example on a dull day.
Hope that better explains the scenario.





Have you seen the Jackery Explorer portable power stations and solar panels? Not cheap but they seem to do exactly what you want, in a more simple way.



via mobile 21/8/2021 at 11:34am
 Location: 
 Outfit: None Entered
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Unfortunately the battery requirements will be large, about 200Ah. This calles for a high rated connector. The 12S supplimental towing plug and socket will not carry this maximum charge current. High rated connector are available known as Anderson Connectors. Use a high capacity fused/circuit breaker protected circuit appropriately rated. There maybe a cutoff relay/switch fitted as well.


via mobile 11/9/2021 at 11:15pm
 Location: west yorks
 Outfit: Caravanett
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Shackbob.               Please explain in simple terms I'm thick



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