Charging spare battery in the Car boot
- Thread starter Gordon_374324516
- Start date
Damian
Moderator
If you have the 12v supply, no problem, connect it up to the battery.
Take the usual precautions, battery in a dedicated battery box, secured so it cannot move around, vent tube located where it can discharge to the atmosphere outside the car.
Take the usual precautions, battery in a dedicated battery box, secured so it cannot move around, vent tube located where it can discharge to the atmosphere outside the car.
Hello Gordon,
I do sometimes charge a spare battery in the boot of my car, and just as Damain says its is secured and vented.
Just in case you are not aware, there are some other essential safety precautions.
You say you have a 12v Socket in the boot of your car. Do not use it if it is a cigarette lighter type. They are very unreliable at maintaining a good electrical contact, and under sustained heavy currents (such as charging a battery) they can melt.
I use a specially made up lead that plugs into the 12S socket and the cable passes through the soft seal of my boot lid. This uses the normal charging circuit for the caravan and ensures the battery is only charged when the engine is running, and it will not try to discharge the battery when trying to start the car.
Both the positive and the negative leads are fused (10A).
I do sometimes charge a spare battery in the boot of my car, and just as Damain says its is secured and vented.
Just in case you are not aware, there are some other essential safety precautions.
You say you have a 12v Socket in the boot of your car. Do not use it if it is a cigarette lighter type. They are very unreliable at maintaining a good electrical contact, and under sustained heavy currents (such as charging a battery) they can melt.
I use a specially made up lead that plugs into the 12S socket and the cable passes through the soft seal of my boot lid. This uses the normal charging circuit for the caravan and ensures the battery is only charged when the engine is running, and it will not try to discharge the battery when trying to start the car.
Both the positive and the negative leads are fused (10A).
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