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jkb
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Registered: Nov 2007
Location: United Kingdom
Posts: 78 [View]

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mobile power supply

thinking about getting a radio for the van, battery is in a compartment that is bolted down and did nt fancy that idea anyway. looking for advice on powering an hf set. have seen something that looks like a rechargeable power supply. would that be any good ? looking for advice from you knowledgable chaps ! ! regards john 2e0msd

Posted: 10-03-09 19:33
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scarecrow243
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Registered: Jun 2006
Location: United Kingdom
Posts: 246 [View]

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mobile power

Hi John useing the vechicle battery is not a good idea as you have to have the engine running to stop the battery going flat i personally use a lorry battery thats 650ahrs this will run a 100watt radio for days without going flat, dave,mi0hgn

Posted: 10-03-09 20:35
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vhf man
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Registered: Jan 2003
Location: United Kingdom
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WOW Dave do you need a truck to carry it around:confused:
hope your well
Keith M1VHT

Posted: 10-03-09 21:12
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scarecrow243
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Registered: Jun 2006
Location: United Kingdom
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mobile power

Hi Keith no just a very strong back,it fits behind the drivers seat of a fiesta,dave

Posted: 10-03-09 21:43
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g8jvw
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Registered: Mar 2008
Location: Wolverhampton
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Thats a big battery in a fiesta. The 630 Ah 2V cells we use are the better part of 45Kg each. I had a 24V set in the back of a Vivaro van and it felt as if I was driving up hill all day!

Posted: 10-03-09 21:56
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scarecrow243
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Registered: Jun 2006
Location: United Kingdom
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mobile power

Steve this one wont tip over its to blooming heavey its a foot and a half in length and 10 inches high and 10 inches wide it came of a 7 1/2 ton lorry, dave

Posted: 10-03-09 22:07
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M3WHN
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Registered: Nov 2007
Location: Witheld
Posts: 143 [View]

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Maybe buy a second battery and install it in the boot. As long as you have a recharger at home then you should be having no problems.

Posted: 10-03-09 22:21
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M3WHN
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Registered: Nov 2007
Location: Witheld
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Well you could go one better and use a wind generator. But the idea in my head is worthy of a Monty Python animation.

Posted: 10-03-09 23:44
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benvue
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Registered: Apr 2007
Location: Afghanistan
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Mobile Power Supply

I use a rechargeable car battery, with a charger in the garage. The battery sits in a plastic tray in the boot, secured with bungee rubbers. Supply to radio via crocodile clipped leads. With the Yaeus FT-857, on HFVHF using ATAS antenna, a charge will last at least for a full day. Fast charge overnight is sufficient.
No problems with RF in the engine management system.

benvue

Posted: 11-03-09 10:24
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johnmck66
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Registered: Feb 2008
Location: United Kingdom
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Mobile Battery

I flattened my battery waffling on 20mtrs outside a clients premises one lunchtime.
I decided I did not want that to happen again.
I then put a second car battery in the boot, secured it, and then fused it appropriately , wired the radio direct, and then fitted a relay to switch the alternator output to charge the second battery, when the car is running.
Bingo! no more embarrassment of asking for a jump start.

Posted: 11-03-09 11:38
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