thesmithy said:
what do GPX5000 batteries need for charge time on a setup like yours , or for comparison sake , what is the charging time if you are plugged in to a 70ZZ battery on the average 4WD ? ( assuming its the second battery in a dual battery setup)
The panels put out 4.58amps in good light....so doing the maths you would get around 5 to say 6 good hrs of light. So around 30 amp/hrs in a normal 8 hrs.
For the detector batteries........300w inverter drawing 1.25amp/hrs would run your 240volt charger no problems.....charging your batterys in no time compared to trying to charge them with a normal 12 volt battery on your vehicle.
Solar panels must be connected to a battery.....then connect the accessories to the battery.......just make sure that the panel input is equal or greater than the draw on the battery.
Connecting straight to 2nd battery will take a very long time especially if vehicle is not running. Battery will only discharge to the same voltage as the battery you want to charge. Eg. 12.3 to 12.3.
Use an inverter they are $99.00 for a 300watt...........my batterys for the laptop-phone -detector charge in less than 15 minutes with the inverter.
Cheers
Thesmithy
awesome .
what amp hour rating is the battery that you have on your 80 w solar panels and is that a NmH battery or SLA ?
I was going to aim for a 1000 watt inverter if a 120 - 180 watt solar is enough to run it on a 110Z lead acid battery . but maybe i dont even need that much ?
I would have two detector batteries swapping out every second day , a 7 amp hour 12 volt battery for an accessory to be charged each day , laptop and phone every couple of days and a second 110Z battery for the boat trolling motor to be charged up to once a day which i was thinking i would swap out with the one on the solar panels
or maybe i should use a mini generator to charge the boat battery ? . doing more homework on that .
edited . change of plans . I have the space for a 250 w solar panel , which i think a 30 amp charge controller will be a safe match for with a bit of extra duty cycle up its sleeve so why not use it.
if i get 15 amps x 8 hours then 120 A/hrs correct less efficiency losses based on no cloud and a sun that sits directly above me all day
a tilting hinge on the solar panel mount wont hurt
thankyou kindly