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KISAE Not Responding - Quick Question - KISAE IC-122055

rpm2020

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Jan 8, 2021
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I am trying to find out if the Kisae IC-122055 Inverter/Charger is compatible with a LiFEP04 battery. The manual indicates charging profiles of Gel/Flooded/AGM/Fixed. I originally was just going to get a separate 15A plug in type shore power charger and a SW-1220 2000W KISAE inverter, but a popular van part distributor suggested this version instead as an all-in-one.

So now, I'm looking at the SWXFR-1220...and it doesn't even show any battery chemistry types in the data sheet.

(A little background, I am building a DIY 300aH LiFEP04 battery with 200A Daly BMS and was intending to use a KISAE 2000W inverter and a KISAE DCtoDC charger to take care of alternator & solar charging. The only "big" draw will be induction cooktop...yes I know it's overkill.)
 
(A little background, I am building a DIY 300aH LiFEP04 battery with 200A Daly BMS and was intending to use a KISAE 2000W inverter and a KISAE DCtoDC charger to take care of alternator & solar charging. The only "big" draw will be induction cooktop...yes I know it's overkill.)

2000 ac watts / .85 conversion factor / 12 volts low cutoff = ~196 dc amps
The BMS has no headroom to speak of.
I wouldn't call that overkill.
 
I meant "overkill" by going with 300aH of lithium for very little draw overall for our uses. I could've just gone with two 6v golf cart batteries but I decided to build something more cost effective for the future.
 
So that is 100% safe with no repercussions?
AGM:
constant current 14.3V
absorb14.3V
float 13.4V
For a 12.8 volt nominal lifepo4 battery those are all fine
I would like to know the re-bulk logic but I didn't find it in the doco
 
Thank you. I would not want to purchase equipment that will compromise the battery.

Why wouldn't they note lithium or lifep04 at all in their data sheet?
 
Thank you. I would not want to purchase equipment that will compromise the battery.

Why wouldn't they note lithium or lifep04 at all in their data sheet?
Because they don't have a lifepo4 specific profile and the doco was probably written before lifepo4 got so popular.
Just a few years ago a lot of the folks were taking a wait and see attitude with lifepo4.
 
Because they don't have a lifepo4 specific profile and the doco was probably written before lifepo4 got so popular.
Just a few years ago a lot of the folks were taking a wait and see attitude with lifepo4.
Ah ok, that makes some sense.

Would the SWXFR-1220 accomplish the same, other than different ac to dc charging amps?
 
Recent versions of this IC include additional settings, including multiple options for Li charging.

I have an IC122055 purchased in the last month and I noticed mysterious settings that were not in the manual. I emailed Kisae support (who are EXCELLENT by the way) and they informed me that the firmware has been updated on recent serial numbers.

They sent me a 6 page detailed addendum to the manual entitled (with misspelling) "Addedum with improvements - IC122055 & IC121040 with r4.0 - u4.1-06.pdf" which applies to KISAE Inverter & Charger IC121040 /IC122055, and provides details of the new software versions(“r4.0” and “u4.1”) in units with S/N equal or higher than KT1909......).

Battery Type and Voltage Setting (Bulkmax./Absorption/Float)
Ag (A9) AGM: 14.3V / 14.3V / 13.4V (factory default)
gEL GEL: 14.2V / 14.2V / 13.8V
LI1 Lithium 1 14.2V / 14.2V / 13.8V
LI2 Lithium 2 14.3V / 14.3V / 13.8V
LI3 Lithium 3 14.4V / 14.4V / 13.8V
LI4 Lithium 4 14.6V / 14.6V / 13.8V
FI Fixed: 13.5 Vdc fixed voltage(power supply mode continuously on CH1 and CH2&CH3 disabled)
FLo Flooded: 14.4V / 14.4V / 13.5V
 

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  • Addedum with improvements - IC122055 & IC121040 with r4.0 - u4.1-06.pdf
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