I just wanted to pass along a realization I discovered.
Originally I use to strip down the Heng long tanks and cut out the battery compartment to give me a nice open space to work with. I could then custom fit my batteries and run all the wiring.
Worked great, until it came time to change a battery. THen it was a lot of work.
Now I keep the battery compartment intact and work around it. I move all the switch topside, plug holes and trim the old mounting posts flush with the floor allowing me to flip the board and add heat sinks. This leaves easy access for a battery swap if required. With using more expensive batteries, I started realizing I had a lot of capital sunk into batteries in ten tanks. Realistically I am only ever running three in a given day, so I decided it would make more sense to allow for the easy exchange of batteries between tanks. Keeping the stock compartment intact allows this to happen.
Just thought I would pass on this to others who might be starting to accumulate a big tank collection.
Here is an interior shot of my latest Tiger, Lots of changes but the battery compartment is kept. This Tank ia fully equipped with the DBC and sound card.
This picture does not show the battery wiring in place. What I do is run a standard plug with extended wires through the hole in the battery compartment. This then screws into the terminal wiring marked Batt. This allows you to easily swap batteries out in the field, just by turning the tank over.
IMO and with some hindsight, I think Heng Long had it right in the first place