Afternoon ladies and gentlemen!
I realise this topic has been done to death, so I both apologise and thank you for any help. I’ve scoured the forums and can’t find much covering my specific situation.
I am looking to add spot lights to my T5.1. My van has standard halogen lamps so the lights time out after ~10 minutes with doors closed. I’ve swapped the bulbs for LED and am aware this time can be increased in the computer, but on the off chance I accidentally drain the battery I’d prefer to have the option to run from an external power source. I’m also wanting to maintain the normal operation when not connected to the power pack (on/off/doors).
This will be used occasionally when me and the little lad go camping, so I’m not interested in a leisure battery at present and am looking to power this from a portable power pack. I’m now aware (I think) of the wiring configuration so have attached a doodle of how I think the wiring could work. I was thinking that this could maybe be connected via USB or a cigarette lighter type fitting via a 12v connection from the power pack.
I’d appreciate if anybody can chime in to confirm I’m headed in the right direction, and if not offer any insight into how I could/should do it differently.
I see that @Dellmassive has been very active on this subject and seems very knowledgeable so I would be very grateful of any insight you could add.
Thanks again!

I realise this topic has been done to death, so I both apologise and thank you for any help. I’ve scoured the forums and can’t find much covering my specific situation.
I am looking to add spot lights to my T5.1. My van has standard halogen lamps so the lights time out after ~10 minutes with doors closed. I’ve swapped the bulbs for LED and am aware this time can be increased in the computer, but on the off chance I accidentally drain the battery I’d prefer to have the option to run from an external power source. I’m also wanting to maintain the normal operation when not connected to the power pack (on/off/doors).
This will be used occasionally when me and the little lad go camping, so I’m not interested in a leisure battery at present and am looking to power this from a portable power pack. I’m now aware (I think) of the wiring configuration so have attached a doodle of how I think the wiring could work. I was thinking that this could maybe be connected via USB or a cigarette lighter type fitting via a 12v connection from the power pack.
I’d appreciate if anybody can chime in to confirm I’m headed in the right direction, and if not offer any insight into how I could/should do it differently.
I see that @Dellmassive has been very active on this subject and seems very knowledgeable so I would be very grateful of any insight you could add.
Thanks again!
