08-07-2017, 10:47 AM
Probably the best battery one could get is from the solar city guys or someplace else, the tesla powerwall lithium ion.
One 14 kWh Powerwall battery
$5,500
Supporting hardware
$700
Price for Powerwall equipment
$6,200
The good thing about Li ion tech is you can abuse the crap out of them and they will still last a long time. Getting chinese batteries you are taking a risk as the battery is only as good as the power management system. If it doesn't charge correctly or the circuits are cheap the battery loads will never balance out the cells making the battery pretty much useless over time.
I think you're better off going with the outback battery if you can't afford lithium tech, paying a bit more. If you are still on the grid, you could just pay the minimum, and when the batteries get down to 20-25% the grid or a generator could switch on to keep the batteries topped up. You might think that is excessive to recharge the batteries after only using 20%, but, doing this can make a battery last 5-10+++X long as dropping down to say 50%. The lower you take a battery ... The more you abuse any type of battery, you shorten it's life considerably.
There are other factors such as charge rate, maintenance, age, etc...etc but most new people will kill the life of batteries by running them down too far.
Batteries are expensive and you want them to Last for as long as possible.
http://www.mpoweruk.com/life.htm
One 14 kWh Powerwall battery
$5,500
Supporting hardware
$700
Price for Powerwall equipment
$6,200
The good thing about Li ion tech is you can abuse the crap out of them and they will still last a long time. Getting chinese batteries you are taking a risk as the battery is only as good as the power management system. If it doesn't charge correctly or the circuits are cheap the battery loads will never balance out the cells making the battery pretty much useless over time.
I think you're better off going with the outback battery if you can't afford lithium tech, paying a bit more. If you are still on the grid, you could just pay the minimum, and when the batteries get down to 20-25% the grid or a generator could switch on to keep the batteries topped up. You might think that is excessive to recharge the batteries after only using 20%, but, doing this can make a battery last 5-10+++X long as dropping down to say 50%. The lower you take a battery ... The more you abuse any type of battery, you shorten it's life considerably.
There are other factors such as charge rate, maintenance, age, etc...etc but most new people will kill the life of batteries by running them down too far.
Batteries are expensive and you want them to Last for as long as possible.
http://www.mpoweruk.com/life.htm