Li batteries at 48vdc
After much deliberation and questions, I'll likely be purchasing the 48v Lithium battery pack instead of 4-12v. I liked the idea of 12v batteries for weight and ease of handling, but the possible cel...
Forum Discussion
MrWizard wrote:
As mentioned above
What is the out put amps of the charger
Vrs
The output amps of solar approx 14amps?
IIRC you did not track amp hrs, only going by voltage, the AGMs
May not have been reaching true full charge
All I'm saying is there is more than one factor at play
The new lithium battery is going to accept more amp hours than the old AGMs,
Thereby appearing to take longer to reach full charge on solar
Lifepo4 charging needs monitoring of the amps as much as the voltage. Full -even though you don't need to be full very often, is determined by the amp acceptance rate @ a specific voltage. Using voltage only will get into the "knees" of the charge/discharge voltage graph -causing slow but sure deterioration of your cells.
Floating -in the Lead Acid sense of things is also a cell killer....
Best overall action with LifePo4 is >-charge>-discharge>-charge>-discharge.
For LIFEPO4 to work and give long, stable service you need to forget the Lead Acid battery routines.....
