Quote:
Originally Posted by swootton
You are reading page 11 under initial charge current limit. Go to page 6 in the chart at the bottom which lists "Maximum Permissable Current(Amps)"
You will see "All bolt or recpetacle" lists 6CA which is 6 time the Ah rating of the battery. In our case 17.2 times 6 = 103.2A maximum Amps.
The battery charger should be a smart charger with voltage limiting based upon state of charge. I verified all this information with my battery supplier and was told that you cannot overcharge these batteries unless you charge at too high a voltage. He recommended no more than 30A or so, but for longer battery life 10-20A max would be ideal.
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The table with the "6CA" reference gives the current ratings of the various types of terminals available with the Genesis product family. It is NOT any sort of current rating for any of their batteries, in any mode of operation.
The section below, titled "Charging", shows how to choose the charging current.
We install about a ton or two (literally) of batteries from this series each week in the industrial grade UPS' we manufacture where I work. Our UPS' charge the batteries at about 0.1CA to maximize the service life of the batteries. I have spoken with the Application Engineers at Enersys multiple times about service life issues. Using a charging current that is too high is one of the major factors that WILL reduce service life (along with over-charging, discharging too deeply, discharging at very high currents, operating in high ambient temperatures and not cycling the batteries).