solar panels

Submitted: Saturday, Nov 18, 2006 at 14:14
ThreadID: 39555 Views:3200 Replies:5 FollowUps:3
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i need info on solar panels please. on the car i have dual battery system which runs waeco fridge and also charges cameras, batteries, laptop ect through an inverter.The offroad camper has a large truck battery which is mainly used for flouro lighting only.The camper batt lasts 9 to 10 days without charging car lasts3 to 4 days.When i charge the laptop it fairly thirsty on power however. ok. i want to know what size and type of panel suits my needs.or would i be better of with a sine wave genny bearing in mind im not super rich.Any info much appreciated.
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Reply By: Derek from Affordable Batteries & Radiators - Saturday, Nov 18, 2006 at 16:04

Saturday, Nov 18, 2006 at 16:04
Hi pjp

The average solar kit you need would be 100W. This would give you around 5 amps while it is in full sun. Cost around $1200.00

You could get a 1000W inverter and a good 20 amp charger for around $1500.00. This would give you up to 20 amps while you are running it.

2 hours per day would give you what the panel would but some parks won't allow even the Honda Eu series.

Solar may be the way to go. (Provided there is sun !)

Regards Derek.
AnswerID: 205619

Follow Up By: Member - Julie P (VIC) - Saturday, Nov 18, 2006 at 16:43

Saturday, Nov 18, 2006 at 16:43
G'day - we have just purchased 2 x 40 watt solar panels in a fold up configuration for ease of carrying - we were advised that this would be suitable for running a Bushman fridge, 1 amp lighting and a lot else - by charging our 75 amp battery - we used if for most of the week recently at the Grampians - sunny every day - and it kept everything running very smoothly - we purchased a Suntech from a place in Simock Street Somerville (Vic) - price just under $1000 - which included regulator, wiring and a heavy canvas bag to carry it it - they are on the internet via google - and they are very helpful people.
I am not up with the technicalities but my husband was very pleased with our purchase.
jules
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FollowupID: 465595

Reply By: kimprado - Saturday, Nov 18, 2006 at 18:26

Saturday, Nov 18, 2006 at 18:26
PJP,

I have the same set up as the last respondant described. It will run a fridge and associated lighting without any problems providing the sun is out.

Make sure you have an Anderson plug fitted in the engine bay for ease of use. I cover the plug with Gaffa tape to keep it clean whislt driving.

Regards

Kim
AnswerID: 205635

Follow Up By: Derek from Affordable Batteries & Radiators - Sunday, Nov 19, 2006 at 12:47

Sunday, Nov 19, 2006 at 12:47
Hi Kim

Anderson plugs are great.

Why don't you use a cover rather than the tape, I would think the tape would leave a sticky residue for dust to stick to.



Regards

Derek.
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FollowupID: 465689

Reply By: pelbo - Sunday, Nov 19, 2006 at 13:15

Sunday, Nov 19, 2006 at 13:15
I have been using a 115Watt solar panel, which cost me $795 inc GST and a Morningstar 10amp regulator, which cost me $110, to run a single battery system in my Pathfinder running a 40 litre Engel Fridge, for over a year now. Fridge is kept as -1 degree.

Why on earth would someone suggest you need a 1000watt inverter? Good grief! It would flatten your battery in about 3 hours!.

To run all the gear you run now, you could get away with a 150watt pure sine wave inverter. If you want to run a few more items, such as TV and satellite decoder at the same time as you run your laptop, a 300watt would do it easy!
AnswerID: 205749

Follow Up By: Chris & Debbie - Sunday, Nov 19, 2006 at 16:19

Sunday, Nov 19, 2006 at 16:19
I think he may have been talking about a inverter type generator. and then run a 20amp battery charger off that.

Chris
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FollowupID: 465706

Reply By: kimprado - Sunday, Nov 19, 2006 at 15:15

Sunday, Nov 19, 2006 at 15:15
Derek,

Thanks for that. I was'nt aware covers are available.

Regards

Kim
AnswerID: 205769

Reply By: longJohn - Sunday, Nov 19, 2006 at 21:46

Sunday, Nov 19, 2006 at 21:46
If you thinking of going solar, yeah do it, its a must. I put a 70watt panel permanently mounted on the roof of my hi top troopie, and I bought and a fitted a PL20 plasmatronics regulator, (300 dollars) which is the bees knees in solar regulator, a bit overkill but very nice. It has digital memory and data logging so it tells you batt volts, charging current, load current, total power in for the day, total power out for the day, and even told you all the details for up to 30 days back. Using a 80AmpHour second battery, I can park in one place for three days and never have to start the engine, and the fridge still holds -4 deg even in summer.

I even found a strange situation two months ago. Went to fraser, had a great time, nothing went wrong, drove home, then a week later had the denco turbo fitted. Guy said the power cable on the alternator was almost burnt off. When I fixed it, found that it was so bad, it could not have been charging the battery during the fraser trip. It seems the solar cell was keeping both batteries charged while driving and during the whole trip, and since the diesel engine does not use much electrical power to run, and we did no night driving, it didnt get a flat battery!

Dont get a sine wave genny, get solar and fit it all permanent, and you will be able to plug in the fridge and forget it. The regulator I explained above even has a low voltage alarm when the battery is going flat. Ive only heard the alarm once, and that was when a battery terminal came loose.
AnswerID: 205821

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