Noob Questions Batteries

PurpleSnow

PurpleSnow

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Good day

I just bought a cheap solar system one 10w 0.6A 18v panel so far with the 12v controller
12v/24v, 10A current, max PV 50V, 130w 12v, 260w 24v.
Can I run a 12v agm 100ah battery on the system to have it running for longer periods or should I stick with the 7ah gate batt.
 
PurpleSnow said:
Good day

I just bought a cheap solar system one 10w 0.6A 18v panel so far with the 12v controller
12v/24v, 10A current, max PV 50V, 130w 12v, 260w 24v.
Can I run a 12v agm 100ah battery on the system to have it running for longer periods or should I stick with the 7ah gate batt.
Click to expand...
What are you running on the system?
The panel on the 100Ah battery is the most useless thing you will ever do, whatever you are running will probably draw more than the 0.6A you will be putting in.
 
Last edited:
PurpleSnow said:
Good day

I just bought a cheap solar system one 10w 0.6A 18v panel so far with the 12v controller
12v/24v, 10A current, max PV 50V, 130w 12v, 260w 24v.
Can I run a 12v agm 100ah battery on the system to have it running for longer periods or should I stick with the 7ah gate batt.
Click to expand...
I am so confused. Can't figure out what you are saying or asking.
So a 0.6A 18V panel, you should be able to charge one AAA battery with that if you are lucky
 
PurpleSnow said:
Good day

I just bought a cheap solar system one 10w 0.6A 18v panel so far with the 12v controller
12v/24v, 10A current, max PV 50V, 130w 12v, 260w 24v.
Can I run a 12v agm 100ah battery on the system to have it running for longer periods or should I stick with the 7ah gate batt.
Click to expand...
it will only take about 111.11 hours of full sun to charge that battery full.
 
Koosvanwyk said:
I am so confused. Can't figure out what you are saying or asking.
So a 0.6A 18V panel, you should be able to charge one AAA battery with that if you are lucky
Click to expand...
He bought a 10W panel for a 130W solar charger for his 100Ah battery. He should get a 150W panel or 2. 10A solar charger (with 150W panels) will take 10 hours to charge 100Ah, well 5 hours as you only supposed to use half capacity. If his load is more than 150W then there is a problem.
 
You can use a 100Ah battery, but I'd suggest getting a larger panel to supply it.
Recharging a 100Ah will take too long with that 10w panel. Get a 100-130w panel.

What are you running on it? Small pond pump?
 
Panels are not that expensive expensive, anything under 100W is useless for a 100Ah battery, even the 100W is not adequate but it's a good start.
 
TheChamp said:
Panels are not that expensive expensive, anything under 100W is useless for a 100Ah battery, even the 100W is not adequate but it's a good start.
Click to expand...
His dinky pwm won't support more. So my suggestion is go with what you can use.

Otherwise, its replace panel, replace the pwm controller (mppt is similar price), replace the battery. You've just replaced the entire system...

Sure, its cheap and nasty, but thats the price point.
 
itareanlnotani said:
His dinky pwm won't support more. So my suggestion is go with what you can use.

Otherwise, its replace panel, replace the pwm controller (mppt is similar price), replace the battery. You've just replaced the entire system...

Sure, its cheap and nasty, but thats the price point.
Click to expand...
It's sad because I am sure he could have got a bigger PWM with a R50 extra on top of the price he paid. Asking for advice before buying is always a winner.
 
Nowhere does it mention a PWM charger but yes MPPT type is the way to go to get the most out of the solar. Also, better to go LFP straight away instead of LA so the battery doesn’t get damaged from undercharging.
 
Thanx for all the comments guys. will 1st start testing with the 7ah gate batt and see how it runs.
Only want to use it for some LED lights during load shedding.
Will buy a large inverter for the fridge and tvs later on.
 
PurpleSnow said:
Thanx for all the comments guys. will 1st start testing with the 7ah gate batt and see how it runs.
Only want to use it for some LED lights during load shedding.
Will buy a large inverter for the fridge and tvs later on.
Click to expand...
Yeah, 100Ah is overkill for this application. Consider buying a Lithium gate motor battery then. In total, how many watts are the LED's?

Later on with the large inverter, get a lithium battery.

Moral of the story, LA sucks.
 
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