I have had a much different experience with older batteries.
1. check the SG and volts under load like at night. And see if there are any
weak ones. Since you have 2v cells you can afford to lose a few.
2. If they all check out more or less equal, and i’m guessing that they are
using lots
Hey Will,
At the risk of being overly simplistic and obvious, have you kept good
specific gravity records over the years? Are they showing lowered or uneven
readings? I've often been able to get some more life out of flooded
batteries by raising the charge and equalize voltages, particularly if
Hi Will,
I'd keep inching the start voltage down and see if it helps. Sometimes old
batteries just operate at a lower voltage and will sag more under load but
they will still carry the load OK
Of course you can:
1. Do all of your high power stuff when the sun is out.
2. Disable the generator
Wrenches, Will
This is a hack trick but it can work as long as you don't have failed
cells, bring the static voltage up to 26 by adding just one battery, this
might be easier on the logistics issue. By doing this you will in the end
sacrifice the additional Battery but increasing the static
Hello Wrenches,
I installed my off-grid system in 2008. It’s 24 V using 2 V industrial FLA
batteries. As you can imagine after 15 years the capacity of my battery bank is
significantly less than it used to be.
For logistic reasons, I won’t be able to replace them till around June of next
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