Batteries

Example

My battery bank consists of 2 volt cells 12 in series for 24 volts. But at 1625 amp hours. The amp hour rating of each battery.

But this string is paralleled with an identical 2nd string
For 3200 amp hours at 24 volts.

MEXICOWANDERER wrote:
Example

My battery bank consists of 2 volt cells 12 in series for 24 volts. But at 1625 amp hours. The amp hour rating of each battery.

But this string is paralleled with an identical 2nd string
For 3200 amp hours at 24 volts.

Wow, that is quite the battery bank. How many watts of solar do you have?

I believe Mex is using this panel;


JUST KIDDING MEX

We need Mex's LAT/LON so we can see his panels via Google Earth!

2oldman wrote:

wa8yxm wrote:
10 amps it will last a bit over 21 hours but if you draw 20 amps. no they won't make it to 10.

And we all know those rating are figuring a draw down to what.. something unusable that nobody should ever do?

450ah is essentially 225, in the real world.

50% is great when life is routine. However I would not hesitate to go lower if needed to keep the heat or some other system running in less favorable conditions.

Yes for the OP 430 is the number to use for your operating estimates.

time2roll wrote:
Yes for the OP 430 is the number to use for your operating estimates.

With a total battery bank of 430 AH @ 12 VDC discharging to 50% gives you 215 AH @ 12 VDC as the normally accepted usable figure for long battery life.

Sure, you can discharge deeper/use more AH, but will certainly shorten battery life. A cold night and you need the heater-- go for it.

One warning of going too low in a motor home (not so much with a trailer) is you might need to "Jump start" the generator... Just so you know.

And one advantage of the GC-2 DEEP CYCLE is a single "OH C##P" level discharge or even 2 or 3 spaced out over time won't kill 'em right away.

Where as the MARINE/deep cycle (Really starting batteries) Are less likely to recover and standard starting batteries... Toast the 1st time