General jump start
- Thread starter MICKYH
- Start date
Currently reading:
General jump start
Jump starting should not cause any problems.
Connect the postive (red) lead first, directly to the post on the battery.
Connect the negative (black) lead last. This should be connected to the engine block or gearbox casing, not the battery.
Leave the pack connected for five to ten minutes before attempting to start the engine.
Make sure pack and leads can't foul fans or belts even if they move due to vibration when the engine starts.
Disconnect negative lead first.
If using an other vehicle don't let the bodies touch. Connect to "dead" vehicle first.
Connect the postive (red) lead first, directly to the post on the battery.
Connect the negative (black) lead last. This should be connected to the engine block or gearbox casing, not the battery.
Leave the pack connected for five to ten minutes before attempting to start the engine.
Make sure pack and leads can't foul fans or belts even if they move due to vibration when the engine starts.
Disconnect negative lead first.
If using an other vehicle don't let the bodies touch. Connect to "dead" vehicle first.
Hi
It should be fine :
Ignition off.. battery pack off
RED clip to battery positive
BLACK clip to engine metalwork
Battery pack on
Ignition on
Once running :
power pack Off
Black clip off
RED clip off
Let us know how it goes
We can tell you how to test it is charging ok too
It should be fine :
Ignition off.. battery pack off
RED clip to battery positive
BLACK clip to engine metalwork
Battery pack on
Ignition on
Once running :
power pack Off
Black clip off
RED clip off
Let us know how it goes
We can tell you how to test it is charging ok too
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Hi
Under the bonnet near the main fuse box (right hand side as you look at it) there is a positive jump start terminal. It's underneath a little hinged plastic cap with a circled plus symbol. There is also a chassis/earth point on the front right of the slam panel. These two points are specifically provided so that you don't need to access the battery. See page 165 of the owner's manual, if you don't have a copy you can find it online.
Under the bonnet near the main fuse box (right hand side as you look at it) there is a positive jump start terminal. It's underneath a little hinged plastic cap with a circled plus symbol. There is also a chassis/earth point on the front right of the slam panel. These two points are specifically provided so that you don't need to access the battery. See page 165 of the owner's manual, if you don't have a copy you can find it online.
Communicator
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I am sorry, but with a motorhome it may not be that simple. It may depend on the relative state of charge of the starter and habitation batteries.
Problems seem more likely to arise, when another vehicle is used as the power source. If the split charge relay becomes operated, large currents may flow from the habitation batteries, which if they are true leisure batteries, designed for low currents may not like it, and their lives may be shortened. Also the habitation fuse from the starter battery may blow, causing future habitation battery charging problems.
I suggest as a precaution that either the above fuse (50A) is removed, or the habitation battery negative is disconnected, prior to jump starting, particularly when another vehicle is involved.
The late Allan Evans who used to post on this forum, and on outandaboutlive, advised against jump starting without precautions. His advice was based on his practical experience, of faulting and repairing faulty MH habitation electrics. For further reading I suggest searching on "aandncaravanservices" website.
Problems seem more likely to arise, when another vehicle is used as the power source. If the split charge relay becomes operated, large currents may flow from the habitation batteries, which if they are true leisure batteries, designed for low currents may not like it, and their lives may be shortened. Also the habitation fuse from the starter battery may blow, causing future habitation battery charging problems.
I suggest as a precaution that either the above fuse (50A) is removed, or the habitation battery negative is disconnected, prior to jump starting, particularly when another vehicle is involved.
The late Allan Evans who used to post on this forum, and on outandaboutlive, advised against jump starting without precautions. His advice was based on his practical experience, of faulting and repairing faulty MH habitation electrics. For further reading I suggest searching on "aandncaravanservices" website.
