Archive for the ‘Ask me Anything Solar’ Category

An 800va Inverter, 250w solar panel and 200AH Battery

Poster on Nairaland asked this question.

Re: Solar Energy, A Complement To FTA by BasedOnB1:34pm

Hello everyone, i need some quick advice here please.

I have a 800 VA sukam inverter, a 250 W panel, and a 30 amps PWM controller. My current 150 AH battery is long due for replacement, so i am thinking of replacing it with a new 200 AH. My concern is that the panel may take too long to charge the battery full, even though i don’t intend to discharge it to more than 50%. Am i just better off with a smaller battery, say a 150 AH or 100 AH?

I also need recommendations on reliable battery brands to buy (preferably from experience), i kinda believe the so called ‘telecom’ batteries are solid, even if they are more expensive.

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Battery Discharging – Less can be More

Re: Solar Energy, A Complement To FTA by pranil(m): 2:06pm On Jun 20

Reprobate:
so on luminous india site, they stated that the 220ah 12v flooded batt will last about 4hrs on 500w load , and 29hrs on 100watt load.
am a lil confused, assume I connect the following, which will last longer?

A. 2x 12v 220ah batt to a 1.5kva 24v inverter to power a 500w load

B. 1 X 12v 220ah batt to a 1.5kva 24v inverter to power a 500w load.

Can you correct B above ( 1 x12 V ) cannot be connected to 24 V inverter . Read On…