RE: WHAT IS THE BEST POWER PANEL FOR FIELD BOX?
Like Kmot says,
The Hobbico Quick Field Charger MKII.
I charges all of your batteries, including LiPo's, and has an adjustable charge rate.
It auto selects the number of cells.
Plus it allows you to charge two different battery types at the same timel
And you can't beat it for around $50.00.
Ken