What's with battery charger
manufacturers??? Do they really not know how to charge a battery
(voltage, amps, states of charges etc.)? Or is it that they are secretly in bed
with the battery manufacturers to help drive sales?
It has been cloudy and rainy here for days with more days forecast
so I haven't been getting really any solar
. So that leaves my expense engine
to wear out using my fully programed alternator regulator
. But that is kind of crazy to run a 54HP engine
to supply a 1KW (1.3 HP) load. So it makes more more sense to run my 3.5KW generator
to do this.
But that means the batteries
are charged by the "smart" battery charger
. I don't really know what is so "smart" about it. It has 4 different charging
programs, none that really match my battery recommendations. It isn't like suddenly out of nowhere battery specs changed.
The unit will supply my FLA at 14.4V during absorption even though the batteries
are suppose to be charged at 14.8V. But hey that's OK they will still get charged it will just take longer right? Not a freakin chance! Because also in the battery charger people's mind the batteries should be fully charged when acceptance gets down to 10 amps. Where this 10 amps comes from who knows as it has nothing to do with the size on one's battery bank, it's just 10 amps is good for everyone.
So now the charger goes into float at a lower voltage and a amp level that leaves the batteries at around 95% state of charge.In the past I didn't really care all that much as I know sometime in the next couple days the sun would come out and the solar
would take care of it. But that's beyond the current
8 day forecast
Then there is the practical. I'm currently in Florida
and it is hot and muggy and if the current
here makes the boat
point out of the wind
there's not even any breeze through the boat
. Not a problem because I spent the money
on a diesel generator
and can run the air conditioner in the afternoon for a few hours. The uses about 1.5KW of my 3.5KW capacity, but hey the batteries will charge at the same time right. No they wouldn't because the stupid "smart" charger thinks the batteries are fully charged.
So I start looking for a different charger to see if it is worth spending money
on a new one. A full replacement for my current charger/inverter is going to be at least $1500 to get something that can be programmed fully. That seemed a lot just to justify for a $550 set of batteries. So I look at a smaller stand alone charger to just take care of the last 10%or so of charging
. Well that's over $600 as compared to a standard "smart" charger that is less than $200.
So in the end I decide that it is crazy to worry about fully charging the batteries if the sun doesn't shine! The cost to do so is more that the cost of the batteries and if the batteries lose a year of expected life itis only $75 and it isn't like they just die suddenly.
Now I understand why so many people complain about their batteries. It isn't the batteries at all, it's the chargers!!!!
Thanks for reading my rant