Hi guys,
I'm going to be going travelling in a campervan in a couple of days, and as I'm planning on using a laptop quite a bit I'm thinking of getting a solar panel and battery package like this one, (
http://www.australiandirect.com.au/b...age/PackSol120) which includes this battery (
http://www.australiandirect.com.au/b...ttery/OZOCB120).
I'm hoping you can help confirm a couple of things I'm unsure about.
1) The discharge timings for the battery are:
C1 66, C3 80, C5 88, C10 98, C20 107, C100 122
Am I reading that as the battery would provide 107Ah @12V when discharged in 20 hours - so that would be the case when drawing about 65watts (pre-inverter) from the battery? (107Ah * 12V / 20hours). btw I realise only drawing the battery down to 50% is recommended, but just wanted to check the maths on the provided figures.
2) Does the voltage produced by a deep cycle batteries vary much or are they pretty stable - i.e. is it safe to plug things that are expecting 12 volts into them, or do you need to run them through a regulator. I'm going to get a charger for my macbook that plugs into a cars cigarette lighter socket, to avoid having to use an inverter to charge it, but was wondering if that was going to be ok.
3) How much power would you expect a solar panel rated at 120watts to actually provide on days with reasonable sunlight, and how efficient is the charging process for a deep cycle battery?
4) Does anyone have any experience of buying from Australian Direct ?
tia
Dan