Basically I would try to save the batteries and sell this guy what he
really needs: a better system.
Obviously there is no LVD, and so this whole sad story of 8 v out of
48v, and frozen electrolyte (more like just water).
He needs a real inverter/ charger and put all his loads on AC or at
least
Larry, et al.
Yes, good point< I should have mentioned the batteries are only
1 1/2 years old. There are many of the first time homeowner mistakes
going on here...not a good site for winter sun due to tree shade,
batteries in cold environment, didn't mention a recently sporadically
w
Hi Bill,
You did not mention the age but I would bet that the batteries have more of a
problem from being deficit charged since the owner has no alternative charge
source. So many DIY systems are poorly designed and usually underpowered. We
see T-105’s murdered in just 2-3 years. Top that off w
I think the point here is it will cost more to try to nurse the batteries
back to health than to replace them, and the chance of success is low.
This is where you have the heart transplant talk: "We can replace your
heart, and the operation has a 95% success rate for 5 years, but you have
to reall
For a flat roof, 35° rack mounted large array in snow country what have
people done for snow removal other than hand shovel it out?
We thought of a dark roof material to start, & we cant snow blow as there
will be sidewalks & people below on all 4 sides.
We are trying think this out in advance!
Well unfortunately he delt with a bad/ingorant installer OR a CHEAP owner. Off
grid without any additional charging source. Got what he paid for.. not
much. If you have a mind too and he IS willing to pay you remove the batteries
thaw and charge for a week or so connected to the grid. Monito
Regarding thawing frozen batteries be real careful they can take an incredibly
long time to thaw .
Lotta lead there to get up to temperature it is not in a hurry
Just my .02 !
Bob
> On Dec 3, 2015, at 1:54 PM, Dan Fink wrote:
>
> Yes, you MUST thaw them completely first before trying anythin
Yes, you MUST thaw them completely first before trying anything, Sorry, I
thought that went without saying.
Good point on the cost-benefit analysis, but when the cost of
transportation of a new battery bank and removal of the old exceeds the
retail price by 2 - 10x, it's worth trying. If the client
My experience with frozen batteries has ranges from plates being pushed around
and consequently shorting to literally the size of the battery being broken
open.
The first rule is never try to charge a frozen battery the battery needs to be
thawed first before even attempting to charge I have sto
Hi bill
8 X golf cart around $1000.
1 day of your time screwing around, $600
Possibility of fix low
Doesn't pencil out
Jay
Peltz power.
> On Dec 3, 2015, at 6:00 AM, Feather River Solar Electric
> wrote:
>
> Hey Folks,
>
> I came across an off-gridder yesterday whom was gett
Bill,
Not to be another Echo here but... Yes, make sure you thaw them completely
before charging There is significant risk of explosion when attempting
charging frozen batteries. When under charge, or load I would be wearing full
protective gear... Full Face Mask, Rubber Apron, Elbow len
I would echo Mark's comment.
Some years ago I worked on a bank of 2V Telco batteries that had gotten frozen.
Granted, they were not frozen solid, but after thawing and putting them back on
charge they recovered. Hard to say how much capacity was lost, but the last
time I checked in on them (la
>>> Completely thaw them before attempting to charge them. <<
Date: Thu, December
This chart from Trojan is very customer good education. Battery electrolyte
is very close to water at low SOC.
http://www.trojanbattery.com/pdf/WP_DeepCycleBatteryStorage_0512.pdf
Also, note that many MPPT charge controllers won't "wake up" and start
charging, even on a sunny day, if battery volta
Hey Folks,
I came across an off-gridder yesterday whom was getting zero
support from the dealer he had purchased his small system from, self
installed, batteries in a lightly insulated box outside. When I
inspected the electrolyte levels I discovered it was frozen in some
cells, the
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