Charge settings for 48V NiFe battery banks

WDHaskins
WDHaskins Registered Users Posts: 5 ✭✭
in Off Grid Solar & Battery Systems #1
All: Would appreciate your guidance on what you are using and your experience. We have two 48V NiFe battery banks, in parallel, each of 39 NiFe 1000 aH batteries with total capacity of 2150 aH. Would like to know what others are using for bulk, absorption, and float voltages and times on bulk and absorption. We've been told we want to reach 64.35 V charge voltage during the day. Higher or lower? We have 30.7 kV solar panels charging, can use grid or generator charge as well, but we don't given battery inefficiency. What floor on discharge do you set? Thoughts?

And THANKS!
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  • Saggys
    Saggys Solar Expert Posts: 189 ✭✭✭
    #2
    Have you consulted your battery manufacturer recommendations? 
    Otherwise you could go to Iron Edisons website and down load their manual as they have charging parameters listed.
    I have a 200 amp hour 48 volt NIFE battery bank that gets charged to 1.55 volts per cell for 4 hours, then floats at 1.45 volts per cell.
    This seems to be working for us but we have very modest loading on our system.
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