>(a battery means a collection of cells)

That makes things a lot easier when thinking about it, thanks!


Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373

On Mon, May 2, 2016 at 10:17 AM, Chuck McCown <[email protected]> wrote:

> Short answer is yes.
>
> Looks like your load is about 5.2 amps.
> Your battery is really a single 24 volt battery with 12 aH of capacity.
>
> It lasts 2.333 hours.
>
> 12 amp hours/2.333 hours = 5.14 amps
>
> If you have 8 batts (really meaning 4 batteries consisting of two 24 volt
> 12 aH battery each (a battery means a collection of cells))
> that is 48 aH @ 24 volts total.
>
> 48/5.14=9.32 hours.
>
> Or, doing it using the preferred watt hour method:
> 24 volts x 5.2 amps = 125 watt load.
> Your batts are 12Vx12aH or 144 Watt Hours each.
> So you have 288 Watt Hours of battery.
>
> 288/125=2.3 hours of run time.
>
> If you have 8 of these 144 watt hour batterys, you have a total of 1152
> watt hours of storage.  (1.152 kWh or about 14 cents worth of power in my
> neighborhood).
>
> 1152/125=9.216 hours of run time.
>
> *From:* Josh Luthman <[email protected]>
> *Sent:* Monday, May 02, 2016 8:00 AM
> *To:* [email protected]
> *Subject:* [AFMUG] Additional run time through batteries
>
> I have a 24v site that uses two 12v 12ah batteries.  I get about 2h 20m of
> run time.
>
> Does it stand to reason if I get eight batteries my run time would be 8+
> hours?  Is sizing linear?
>
> Josh Luthman
> Office: 937-552-2340
> Direct: 937-552-2343
> 1100 Wayne St
> Suite 1337
> Troy, OH 45373
>

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