A complete loss in confidence in anyone associated with the installation and maintenance!
I have f**ked up massively with the batteries. Basically I have not checked them in a while as I have not been living in the house for nearly a year. I moved back in just before xmas and noticed that the genny was coming on more than it should. After checking the batteries I have seen that the acid level was way low. Actually below the plates. I have had to put in about 700 ml of water just to get the level over the plates. I know this is a monumental f**k up. I'm charging the batteries as we speak. Last night was the first time They were charged with the new levels. When I woke this morning the bats were way down so I have put thew genny back on and will keep charging them. what I need to know is
a. Do you think the bats will come back.
b. do you think they are completely f**ked.
c. If they are f**ked can they in some way be fixed.
niel wrote: »
plates should never be exposed to the air and even if they work somewhat now, they are diminished in capacity and are inevitably going to need replacing sometime soon. mine went about 3 or 4 months babying them before i replaced them. maybe a sealed agm battery would've been better as they need less maintenance.
Even the so-called "dry charged" (where you add acid when you need them) have a shelf life of 18 months at most. They are not totally dry - they are actually filled with acid, the plates formed and charged, then the acid is dumped out.
These are some typical (minimum - maximum) typical expectations for batteries if used in deep cycle service. There are so many variables, such as depth of discharge, maintenance, temperature, how often and how deep cycled, etc. that it is almost impossible to give a fixed number.
Starting: 3-12 months
Marine: 1-6 years
Golf cart: 2-7 years
AGM deep cycle: 4-7 years
Gelled deep cycle: 2-5 years
Deep cycle (L-16 type etc): 4-8 years
Rolls-Surrette premium deep cycle: 7-15 years
Industrial deep cycle (Crown and Rolls 4KS series): 10-20+ years
Telephone (float): 2-20 years. These are usually special purpose "float service", but often appear on the surplus market as "deep cycle". They can vary considerably, depending on age, usage, care, and type.
NiFe (alkaline): 5-35 years
NiCad: 1-20 years
BilljustBill wrote: »
As a spin on the exposed plates information, I have a question.
If the battery has never had acid, but was stored with some of the caps being left off, would the battery be rated as new or considered to have a shorter lifespan when acid is put in and it becomes active?