Nice drawing.

You can run both chargers off that PS if you're SURE it's rated at 10amps or more. 15 will be just fine.

I know the Accuel is only a 50w charger so that's not a problem.

I run 2 Accuel chargers off a single 10 amps supply with no issues.

I don't have a drawing but it's really easy to explain.

All you need to do is eliminate the deans plugs. That's just more connections which equal more resistance.

Get some 10-12awg wire and some bullet connectors. Male and female.

Wire up the males to go into the PS leave a few inches of wire and then make a split for the + and the - terminals. So you will have 2 positive female plugs and 2 negative female plugs.

Then put male bullet connectors on each of the charger input leads. You will have a total of 4 obviously. 1 positive and 1 negative for each charger.
Then simply plug them into the female output eads coming out of the power supply and your good.
This way you can run just a single charger if you want or both together.

Hope this helped.