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Battery chargers


Col_T

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At present we have a shore-line connection to a Sterling Pro Combi quasi sine wave inverter (1500w) / charger (40A) connected to 5 off 110Ah sealed lead acid batteries. We also have 350w of solar charging the batteries. We usually cruise for about 4 hours a day, and use about 50Ah a day (12v fridge, all LED lighting and charge mobiles, etc via USB). I am planning on replacing the Combi with separate inverter and charger to avoid having all my eggs in one basket, so as to speak.

 

Given that most of the time the charger will be trickle charging the batteries, is there any benefit in having a charger capable of delivering more 30A?

 

 

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23 minutes ago, Col_T said:

At present we have a shore-line connection to a Sterling Pro Combi quasi sine wave inverter (1500w) / charger (40A) connected to 5 off 110Ah sealed lead acid batteries. We also have 350w of solar charging the batteries. We usually cruise for about 4 hours a day, and use about 50Ah a day (12v fridge, all LED lighting and charge mobiles, etc via USB). I am planning on replacing the Combi with separate inverter and charger to avoid having all my eggs in one basket, so as to speak.

 

Given that most of the time the charger will be trickle charging the batteries, is there any benefit in having a charger capable of delivering more 30A?

 

 

I think not and have done exactly that. I cannot envisage arriving at a mooring with shore power having flat batteries needing a really hefty charger and if I somehow did I have a 175 amp alternator to do the business til my 30 amp charger is enough. In fact, when my combi failed, a 5a ctek coped quite adequately with my 440 amp hour bank until my new configuration was complete.

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32 minutes ago, Col_T said:

At present we have a shore-line connection to a Sterling Pro Combi quasi sine wave inverter (1500w) / charger (40A) connected to 5 off 110Ah sealed lead acid batteries. We also have 350w of solar charging the batteries. We usually cruise for about 4 hours a day, and use about 50Ah a day (12v fridge, all LED lighting and charge mobiles, etc via USB). I am planning on replacing the Combi with separate inverter and charger to avoid having all my eggs in one basket, so as to speak.

 

Given that most of the time the charger will be trickle charging the batteries, is there any benefit in having a charger capable of delivering more 30A?

 

 

I see no benefit either, if you had a bigger charger it would not be charging at more than 30A for long, so that is the only time you could reduce with a bigger charger.  

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