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aussiebattler avatar image
aussiebattler asked

Should I use "high" or "normal" mode on an IP65 for this AGM battery?

I have a similar question to this original post, but with some more details to provide. My 100AH AGM battery is a Fusion CBC12V100AH and includes the following information printed on it regarding constant voltage charging:

Standby Use (Float Charge): 13.5~13.8 Volts @ 25C
Cyclic Use: 14.4~15.0 Volts @ 25C
Max Charging Current: 30A

Based on that information when the battery has been moderately discharged I would have thought that using Blue Smart IP65 Charger it would be appropriate to use "high" mode rather than "normal". What is the recommended mode for that information?

chargerAGM Battery
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1 Answer
Stefanie (Victron Energy Staff) avatar image
Stefanie (Victron Energy Staff) answered ·

Hi @aussiebattler,

as per the data sheet the recommended cell voltage is 2.45V. That's 14.70V and results in high mode.

However, for battery life it's definitely not wrong to charge at normal mode which corresponds to 14.4V. A typical value for AGM batteries. Up to you.

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