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Discussion Starter · #1 ·
Hi folks

for you guys working with backup systems (Battery banks), what is the recommend charging current to charge batteries with, Is there any formula.

My experience tells me that 10% of the rated battery Ah is good to go with as a charging current. :rolleyes:
 

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Hi folks

for you guys working with backup systems (Battery banks), what is the recommend charging current to charge batteries with, Is there any formula.

My experience tells me that 10% of the rated battery Ah is good to go with as a charging current. :rolleyes:
Constant current or constant voltage?

Lead Acid or Ni-Cad

Valve Regulated or Flooded

Google IEEE Stationary Battery Standards
 

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Discussion Starter · #3 ·
Lead Acid

Flooded


P.S

I do the google search for Google IEEE Stationary Battery Standards
 

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Lead Acid

Flooded


P.S

I do the google search for Google IEEE Stationary Battery Standards
Typically we do constant voltage with current limited to a set value, and this value is typically based on the cost of the charger. High current chargers are expensive.
 

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Hi folks

for you guys working with backup systems (Battery banks), what is the recommend charging current to charge batteries with, Is there any formula.

My experience tells me that 10% of the rated battery Ah is good to go with as a charging current. :rolleyes:
I have four batteries and I just run a Harbor Freight $4.99 trickle charger on them.
 

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Hmm...


But is there any rule of thumb for the current ?
There are mathematical formulas based on size of battery, discharge rate, depth of discharge, necessary time to get back to 100% recharge.

All this is in IEEE 450 (I THINK) I have the standards in the office.
 
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