john_morris_uk
Well-known member
I’ve read lots about solar but I’ve no experience and I’d like some advice please. This is for our daughters Pandora 700 so think small! The boat will be on a swinging mooring so no shore power.
One 1Ah battery supply’s everything.
Charging is going to be from a Tohatsu 6hp sail drive so only a few amps. The plan is to supplement thus with a solar panel.
Drain is:
VHF radio. 1amp on max volume on receive but mostly 0.3 amps. Transmit time is negligible.
Instruments 0.05 amps
LED lights all round. (If everything was turned on still less than an amp.
Edit: She says she wants to have at least one (if not two) phone charging sockets.
No autopilot atm but I can’t imagine her being without one for ever.
Calculations suggest 30 watt panel might be enough. Let’s call it 50 watts? The boat will sit on its mooring most of the week most of the time. It would be good for her to arrive and find the battery at or near 100%
MPPT Controller?
Any suggestions or any ideas?
Edited again to correct a couple of figures.
One 1Ah battery supply’s everything.
Charging is going to be from a Tohatsu 6hp sail drive so only a few amps. The plan is to supplement thus with a solar panel.
Drain is:
VHF radio. 1amp on max volume on receive but mostly 0.3 amps. Transmit time is negligible.
Instruments 0.05 amps
LED lights all round. (If everything was turned on still less than an amp.
Edit: She says she wants to have at least one (if not two) phone charging sockets.
No autopilot atm but I can’t imagine her being without one for ever.
Calculations suggest 30 watt panel might be enough. Let’s call it 50 watts? The boat will sit on its mooring most of the week most of the time. It would be good for her to arrive and find the battery at or near 100%
MPPT Controller?
Any suggestions or any ideas?
Edited again to correct a couple of figures.
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