Blimey! Where on earth do you put them all? I suspect (and haven't tried) that I might get another two safely fitted in mine, making the grand total of 28 Ah. Or prehaps you fly an electric Antares...
Lead in the tail (useful trim of CG), NiMH packs in the wings and some leads in the mid-fuselage. If you go Lithium or NiMH, you can get a much better energy/weight ratio. Need specialist chargers, though. The solar panels aren't bad and give enough power run the nav. computer in bright sunlight or top up another system in flight.
Your panel is rather full?
Somewhat.
I think it might fit on top of the coaming next to the FLARM without obstructing any view out.
I'm intrigued to find out how glider pilots maintain attitude in clouds. Presumably they don't have enough battery power to run a gyro for an AI?
People have been fitting blind-flying instruments in gliders since, oh at least pre-WWII. T&S to start with, then AHs. You needed a *big* battery to run one of the ex-mil jobs and it wouldn't last that long. The RC Allen 14V horizons were the weapon of choice until fairly recently as the current drain wasn't too appalling.
There is a magnetic compass, made by Bohli. It's gimballed on three axes and can be used as a blind-flying reference. If you're pretty good at that sort of thing... Cool not to need any power, though.
Quite a few of us have fitted one of
these (They do an even cheaper D-6 now) as it it's less than a new mechanical one and only about 1,000x better. Can leave it on all day, too.
I learnt to fly gliders in cloud by trial and error using a T&S when I was 16. On my own. I
had read the book on how to do it, just in case you think I was being irresponsible at that age. I only came out upside-down once, too.