Generator charging battery

Battery charge time with Generator is my aprox math correct.
The battery manufacturer says
Voltage Setting 48 VDaily Charge (Absorption) 58.1Equalize 61.9Float 54.0
my Honda generator is limited to 21amps At 240V. hooked up to SW4048 to charge batteries
I have 48V X 470AH =22,560 watts and if I run the batteries to 70% I have to replace 6,800 watts
( these are net number that the ComBox shows going into and out of batteries)
So if my Generator is putting 56 volts and 2,200 watts per hour back to my battery bank then it should take about 3 hours to recharge my bank?
The ComBox and the battery monitor are not getting along, the BM is showing 95% SOC however the voltage is 48.1 and the hydrometer shows 60%-70% . I have disconnected the BM and going to fully recharge batteries then reconnect BM and adjust. Thanks Bob
Voltage Setting 48 VDaily Charge (Absorption) 58.1Equalize 61.9Float 54.0
my Honda generator is limited to 21amps At 240V. hooked up to SW4048 to charge batteries
I have 48V X 470AH =22,560 watts and if I run the batteries to 70% I have to replace 6,800 watts
( these are net number that the ComBox shows going into and out of batteries)
So if my Generator is putting 56 volts and 2,200 watts per hour back to my battery bank then it should take about 3 hours to recharge my bank?
The ComBox and the battery monitor are not getting along, the BM is showing 95% SOC however the voltage is 48.1 and the hydrometer shows 60%-70% . I have disconnected the BM and going to fully recharge batteries then reconnect BM and adjust. Thanks Bob
SW Conext 4048
AGS
Combox & Conext battery monitor
16- 235 6V batteries
Honda 6500 gen
Combox & Conext battery monitor
16- 235 6V batteries
Honda 6500 gen
Comments
Do you mean the SW charger voltage setting is 56 volts? If so, it will take much longer to charge the bank. I recommend setting to your stated absorb voltage of 58.1V. That way you will get the maximum current until the battery bank reaches absorb voltage. The charging time will be extended after the battery bank reaches absorb voltage because batteries will take less and less amperage as the batteries approach 100%. So foe example, discharging to 70% over 3 hours may take 4 to 4.5 hours to recharge. Also, I believe most battery monitors reset to 100% only when the absorb cycle completes.
Rick
|| Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
|| VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A
solar: http://tinyurl.com/LMR-Solar
gen: http://tinyurl.com/LMR-Lister ,
I equalized the batt bank then hooked up battery monitor. Then ran a charge cycle.. I should have taken hydrometer reading before hookin up BM. .
todays project check hydrometer readings .. if needed recharge BB to full and then add BM and change setting on BM .. bob
Combox & Conext battery monitor
16- 235 6V batteries
Honda 6500 gen
Main daytime system ~4kw panels into 2xMNClassic150 370ah 48v bank 2xOutback 3548 inverter 120v + 240v autotransformer
Night system ~1kw panels into 1xMNClassic150 700ah 12v bank morningstar 300w inverter
- (Batt Temp - Std Temp) * compensation value * number of cells = Voltage offset
For example of a typical flooded cell lead acid battery bank:- (13C batt temp - 25C standard temp) * -0.005 volts / C / Cell * 24 cells (48 volt bank) = +1.44 volt increase over Vbatt-std-chrg
- 59 Volt charge (FLA @ 25C) + 1.44 volts offset = 60.44 volts actual charging voltage
Note, many AC inverters have a 15/30/60 VDC limit on input voltage... You have to look around for AC inverters that are at least 16/32/64 VDC or so maximum input voltage (12 volt / 24 volt / 48 volt battery banks).For our friends in the north, shutting down AC inverters during charging can be an issue in winter.
-Bill
.. the Battery temp sensor then read 50c . When in fact the batteries were 14c
attached 2 device reports. If you look you will see to different tempature from the same BTS
. Is anyone fluent in Schneider ComBox?
Combox & Conext battery monitor
16- 235 6V batteries
Honda 6500 gen
when you are using 1 amp AC.....you are probably using 2 or 3 amps dc
also, you cannot use wattage for how long a battery will last.....you have to use amps....that is why renewable energy batteries are expressed in AH amp hours....or how long a battery will last drawing 1 amp an hour.....it wont work saying you are drawing 1 watt an hour
so to figure out how long it will take to fully charge your batteries you need to know what the charge amperage is
there is a formula to figure this out...dont remember where it is...but I can tell you if you have 470 AH of 48v battery bank...it will take 4-6 hours to charge at 30 amps...at 90 amps...which is what I think the conext SW 4048 will charge at with a generator supply power....then it will take maybe 3 hours to get to float.....unless you set your absorb time lower, default should be 180 minutes
I dont recommend charging at 90 amps....it will destroy a battery if it is done all the time
batteries like to take a charge slow....and in return the battery power will last longer also the battery will last longer
when needed, as a battery starts to sulfate, make sure to do a real good equalize charge with higher voltage and higher amperage...this is to break up the sulphation
the inverters built in charger will put out 90 amps ...DC
the 4048 should have a 6000 to 9000 watt generator...any smaller and you run into surge problems
|| Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
|| VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A
solar: http://tinyurl.com/LMR-Solar
gen: http://tinyurl.com/LMR-Lister ,
after watching manny videos on ComBox and other Schneider products and accessories i see one common thread....
no one use the ComBox to set perimeters.. they all us Conext SCP. You watch the video and the ComBox sits on the wall and goes unmentioned.. all you here is “push this button three time to home screen” on the SCP.
the set up menus on the ComBox and the owner’s manual are not the same ..many setting have like terms but are located in different set up section.
For example my BTS is reading two different temps. ( see earlier post).
I hoping someone has Schneider products and can help.. as most of you who have commented have other manufactures equipment... maybe I picked the wrong horse.
Combox & Conext battery monitor
16- 235 6V batteries
Honda 6500 gen
Second system 1890W 3 × 300W No name brand poly, 3×330 Sunsolar Poly panels, Morningstar TS 60 PWM controller, no name 2000W inverter 400Ah FLA 24V nominal used for water pumping and day time air conditioning.
5Kw Yanmar clone single cylinder air cooled diesel generator for rare emergency charging and welding.
FYI I have updated the firmware on all of my devices, the AGS is removed from the system for the time being.
thanks Bob
Combox & Conext battery monitor
16- 235 6V batteries
Honda 6500 gen
|| Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
|| VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A
solar: http://tinyurl.com/LMR-Solar
gen: http://tinyurl.com/LMR-Lister ,
Combox & Conext battery monitor
16- 235 6V batteries
Honda 6500 gen
Main daytime system ~4kw panels into 2xMNClassic150 370ah 48v bank 2xOutback 3548 inverter 120v + 240v autotransformer
Night system ~1kw panels into 1xMNClassic150 700ah 12v bank morningstar 300w inverter
Combox & Conext battery monitor
16- 235 6V batteries
Honda 6500 gen