Max charge and discharge is it in ac or dc
- Thread starter Joehebbo
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sunshine_eggo
Happy Breffast!
If charging current, it's DC.
Even if it s grid charge?
Bud Martin
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The battery charger charging current spec is what the charger can provide to the battery which will be DC current rating.
If you have have battery charger that get the power from utility, that charger will take the AC input and converts it to DC supply to charge the battery, for example the 12VDC 10A charger using utility can provide 10A of battery charging current which will be = to 120W, that means (for simplicity we will ignore conversion loss, and PF for now) if utility is 120VAC, the AC input current to the charger will be 120W/120VAC = 1A of AC current.
Vigo
Solar Addict
Another way of putting it is that numbers like 80 and 100a almost always refer to dc because there are basically no 120v circuits intentionally designed to flow 80-100a other than the neutral conductor between a house and the utility’s transformer, and at 240v that would be an absurd power level for anything short of aggressive EV charging, ~20,000w.
So by all means verify in each case but generally speaking any 80-100a charging is almost always going to be referring to a dc system of 48v nominal or less.
So by all means verify in each case but generally speaking any 80-100a charging is almost always going to be referring to a dc system of 48v nominal or less.
timselectric
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DC
DC
DC
DC
DC
Deye inverter i want to know if i put my battery charge on grid is 100 let s say will take 100 A from grid or will be convert it to dc Amper
Ok thx so if i put my grid charge battery 100A will be 10 ac current thx that was my question
timselectric
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100a DC charging.
So if 100A charge on inverter for a battery of 48 v lithium 100/48 = 2 amps on 220 v ac utility current right?
timselectric
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Around 21 to 24 amps from the 240v AC.
100 A divided by 48 v batt = 2.08 A
Can u put for me how do it from 100a to 21-24 amp on 240 to see the maths
timselectric
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That's not the correct math.
100a x 51.2 (nominal 48v battery voltage) = 5,120w
5,120w ÷ 240v = 21.33a
Ok thx
If 100 A charging battery on utility on inverter = to real A current will be?
John Frum
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Assuming by real current you mean DC current from the charger to the battery.
and assuming that the AC voltage is 230VAC.
and assuming that the DC charge voltage is 55.2VDC
and assuming that the charge efficiency is 80%.
100 AC amps * 230 VAC = 23,000 watts
23000 watts * .8 conversion factor = 18,400 watts
18,400 watts / 55.2VDC = 333.3333333333 DC amps
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If im putting 100 A on inverter as charging what will be how many A on utility ac amps ??
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