24v to 12v jump pack

pluto10107 · Jan 4, 2013

Any chance someone can show me how to rewire this jump pack from 24v to 12v (it goes through a switch and a fuse before it leaves the pack)?

Thanks

Sintra · Jan 4, 2013

Connect it in parallel as opposed to series?

Jay Sparks · Jan 4, 2013

^^^^^^ AS above and welcome to the forum.

Jay

telectrix · Jan 4, 2013

connecting the batteries in parallel would work as 12V, but the problem then would be that your charger is 24V and will knacker the batteries unless you replace it with a 12V charger. this may also entail modifications to the charging module in the unit as well.

Sintra · Jan 4, 2013

telectrix said:
connecting the batteries in parallel would work as 12V, but the problem then would be that your charger is 24V and will knacker the batteries unless you replace it with a 12V charger. this may also entail modifications to the charging module in the unit as well.

I'm glad someone knows what they're on about.

ayjay · Jan 4, 2013

that thing at the bottom left-- a solanoid?-24 volt windings?

lister101 · Jan 4, 2013

Basically you need to achieve this;
(sorry about the drawing). Which wires you use to make the connections is your choice & depends on length but please ensure that they are the same csa otherwise hey will overheat & posible catch fire in high current applications.
As previously mentioned you will need a 12V charger as a 24V charger would overcharge both batteries & buckle them beyond beliefe!

......Andy ;~)

pluto10107 · Jan 4, 2013

ayjay said:
that thing at the bottom left-- a solanoid?-24 volt windings?

It's the on/off switch (it's activated by a key the otherside)

pluto10107 · Jan 4, 2013

lister101 said:
Basically you need to achieve this;
(sorry about the drawing). Which wires you use to make the connections is your choice & depends on length but please ensure that they are the same csa otherwise hey will overheat & posible catch fire in high current applications.
As previously mentioned you will need a 12V charger as a 24V charger would overcharge both batteries & buckle them beyond beliefe!
View attachment 16473

......Andy ;~)