Tip Led lighting went dim, but still work

[dennybuck]

New (used) trailer and the interior LED lighting suddenly went dim on me, the other DC seems OK, Radio,fans etc, I did charge the battery overnight and it has a solid 12dv at the terminals

 

[TheLooks]

12 v is a discharged battery.

How To Maintain Batteries - Deep Cycle Battery Store

THE BASICS ON BATTERIES *Important Items Highlighted/Colored First things first. A 12-volt battery is not a 12-volt battery. Twelve volts is just a nominal, convenient term used to distinguish one battery from another. A fully-charged 12-volt battery, allowed to “rest” for a few hours (or days) with

deepcyclebatterystore.com

 

[dennybuck]

Great info on the battery thanks, I rechecked with my meter and it really at 12.9v, so that seems ok, I can take a 12v led light and touch the terminals and it turns on brightly. maybe its the amperage distribution

 

[TheLooks]

I would be checking grounds.