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Old 23 August 2005, 17:58   #11
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Originally Posted by stedj
just back from scotland i got one of thows battery pack booster starter £35 halfords my batterys on the blink and ive a 115 hp 2 stoke loads of power turned the engine no probs about 10 times on one charge and still charged my camp light
I presume you mean you started the engine 10 times - not just turned over 10 revolutions.

it sounds just what im looking for - thanks
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Old 24 August 2005, 05:47   #12
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yes the boat battery went flat and wouldnt turn over the engine ,put the jump start onand spun the engine nice and fast .started/ bobs ur uncle done this 10 times
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Old 24 August 2005, 05:57   #13
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Is this the one you have
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Old 24 August 2005, 08:14   #14
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I've been toying with the idea of fitting on of these:

http://www.force4.co.uk/ProductDetai...6-6db22b05e5e4

In short it isolates your battery before it goes flat if you leave anything on.

Any thoughts?
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Old 24 August 2005, 08:28   #15
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Quote:
Originally Posted by Michael S
I've been toying with the idea of fitting on of these:

http://www.force4.co.uk/ProductDetai...6-6db22b05e5e4

In short it isolates your battery before it goes flat if you leave anything on.

Any thoughts?
It all depends on how it reaches the trigger voltage (11.9v) if it reaches it quickly the battery will recover to a reasonable voltage but if the drain has taken a long time the battery will simply stay at the trigger voltage
When we tested this type of device some years ago we really couldn’t find one that justified the cost. Things might have changed but I really think that the fundamental principle of operation is flawed, far better to have twin batteries and a split charge system Des
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Old 24 August 2005, 09:36   #16
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Quote:
Originally Posted by Michael S
I've been toying with the idea of fitting on of these:

http://www.force4.co.uk/ProductDetai...6-6db22b05e5e4

In short it isolates your battery before it goes flat if you leave anything on.

Any thoughts?

They fitted an equivalent to some small 12v commercial vehicles-as well as them being very common for 24v Leyland/Daf trucks. I'd like to bet it'd be half the price from a commercial vehicle spares outlet...
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Old 24 August 2005, 12:03   #17
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Quote:
Originally Posted by roycruse
Is this the one you have
thats the one
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Old 24 August 2005, 19:34   #18
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Des,

I agree completely that two batteries would be way better but I just don't have the room. My battery is in my single jocky which also houses my aux. fuel tank. Thanks for your comments. Finding someone who had tested the thing was exactly what I was after.

Nos4r2,

They do make a commercial vehicle version and you're right it was cheaper, but less so than I expected and they claimed the marine version was different. You're probably right and there's no difference.

Cheers

Mike
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Old 25 August 2005, 09:36   #19
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Quote:
Originally Posted by Michael S
Des,


They do make a commercial vehicle version and you're right it was cheaper, but less so than I expected and they claimed the marine version was different. You're probably right and there's no difference.

Cheers

Mike

The commercial one probably has a higher shutoff point-you're unlikely to be able to start a truck with 23.8v from cold-and bloody great solenoids to isolate tail lifts etc. You'd probably have to waterproof the switch too-but they look a hell of a lot prettier (black rocker switch)and have a flashing LED as part of the rocker switch to tell you if it's tripped.

Course, if you want to get something a whole load cheaper there's always this... http://www.sailgb.com/p/battery_guard_c8310/

I suspect if you were to cut the cables and route your accessory wiring through it then it'd do the job-as long as you havn't got 15 amps running through it continuously.
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