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Rebulk Settings for Victron 220ah AGM Batteries

HI All,

My batteries go into bulk charging twice a day - (last 2 days) i have 6 Victron 220ah AGM Batteries.

They aren't in any type of load during the day so cant see why they need to restart the cycle. I checked and the rebulk setting is set to 0.40v and it says:

''Resulting Voltage at which the charge cycle will restart: 13.4v''

At that voltage the batteries are actually close to full so would it be a bad idea to drop this to restart at 12.8 to avoid over charging?

Thanks


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