Sunlight Yes it does It says 70 Ma balancing and monitoring 25 Micro amps . So it does balance and it self uses 25 Micro amps for the monitoring of the balancing. Confusing? Not really its a term of efficiency that they try to explain. Hope this helps and clears the confusion

Sunlight No recommended to do. I have tried and had no problem doing so, but did not load up beyond the capacity off one unit, so I do not know if both units will no fight each other

Sunlight No this one is only down voltage conversions. You will need a boost voltage converter. Hope this helps

Sunlight One set is one radio ia n box

Sunlight The camera is USB powered and there for 5 Volts.

Sunlight The 7 Volt out put will be up to a input voltage of approx 1.4 volts above the output voltage providing you have the current to drive the 7 volts and 15 amps. You need to use larger heatsinks fan on 15 amp continues load. Hope this helps

Sunlight These are blocks of battery holders and can be added to with another one like lego. They can be modified with side cutters or a saw .these blocks hold the batteries together one on the top and one on the bottom of the battery to make it a battery pack of 4s5p or 5s4p. They are designed for that way , but you can add more to that configuration by purchasing different configurations of your choice. I hope this clarifies your question