Hi experts, let it be known that I am not an Electritian and have very base knowledge about this stuff. Hence the problem.
I am trying to build a field charger for my drone batteries. I have 2x sealed lead acid batteries in parallel. 12V 7Ah each. I want to charge with my charger with input voltage 11-18v at 5A.
The problem is that shortly after I start the charger the voltage of the pb batteries drops to 10.? and the charger stops.
I need a way to keep the voltage up around 12v and amp draw around 5. No ventilation possible so needs to be a cool solution.
I can solder and get most bits readily.
I am trying to build a field charger for my drone batteries. I have 2x sealed lead acid batteries in parallel. 12V 7Ah each. I want to charge with my charger with input voltage 11-18v at 5A.
The problem is that shortly after I start the charger the voltage of the pb batteries drops to 10.? and the charger stops.
I need a way to keep the voltage up around 12v and amp draw around 5. No ventilation possible so needs to be a cool solution.
I can solder and get most bits readily.