red31 wrote:
"C20 battery capacity" is the 20 hr capacity or 220 so 5% of that is 11amps for equalization. 5A/100 ah.
From the Rolls manual:
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DISCHARGE RATES
Discharge and recharge rates should be considered when selecting and sizing
a battery bank. Battery manufacturers publish multiple discharge rates for each
battery model, which range from 100 hrs to 1 hr. These are often referenced for
various type of applications. The most common in Renewable Energy applications
is the 20 hr rate as this closely matches a 1 day period. The rating, (ex C20) refers
to a controlled load (Amps) which can be placed on the battery for a period of time
before the battery voltage reaches 1.75 VPC (volts per cell). A high amp draw may
be run for a shorter period of time and vice versa.
As an example, a 400 AH battery can support a controlled 20 Amp draw for 20 hours
(C20). Alternatively, the same battery can support a controlled 34 Amp draw over a
10 hour period (C10), meaning it supplies 340 AH capacity for that period of time.
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