Posted September 27, 20159 yr Hi all, Curious about the suitability of these batteries for renewable energy. You can google them to find the very basic spec sheet, but there is no cycle life info for it. It appears to be the same kind of tech used by the Excis FMF type battery. Seems to be an AGM type battery with silver-calcium plates. What kind of cycle life is to be expected?
September 28, 20159 yr What I've learned over the past few months is that if cycle life is not specified, the batteries are usually not designed to be cycled, but rather for standby applications such as in UPS systems.
September 28, 20159 yr Author That's what I suspect too. It looks like best case they will do 1000 cycles if you cycle 20% DoD, which isn't brilliant. Only reason I am asking, I can get those 4 batteries for 8k. They are 5 months old and I know the seller well, they have not been mistreated. For my use case, a 20% DoD is actually fine. So it's really a bang-for-buck thing, but so far I really have the feeling that 1) it's better for the seller if he sells them to someone who will use them for backup purposes, and 2) it only really makes sense for me if I can get them for 6k or less... :-)
February 22, 20196 yr Do you know what the c-rating of these batteries are? I used them for 4 years on my solar system, but now they are packing up and I must replace them with another brand. Rudi system
February 25, 20196 yr They're stand by batteries. Not meant for cycling every day, asin a solar system First National Batteries manufacture them if you want to get more technical info.
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.