ISO 2 volt high amp battery charger for single cell balancing.

Does anyone know of an affordable 2 volt efficient battery charger that i could use to balance individual cells in a lead acid agm stack. I have a 36 volt 1100ah stack made up of 2v individual cells, because it's AGM equalizing to balance is problematic. I think a 20+ amp 2 volt charger would be ideal. If and of you know of one I would greatly appreciate a link/name of where I could obtain one.
Alternately if any of you electrical engineer types could cobble one together quick it would be worth a couple hundred to me😉.
Comments
https://www.amazon.com/Precision-Adjustable-switch-Digital-Regulated/dp/B07DKXPVLW
https://www.amazon.com/TekPower-TP3030E-Adjustable-Switching-Digital/dp/B00PWSDH8C
And, on the low cost side 15-20 amp down converting adjustable switching regulator:
https://www.amazon.com/MIMI-Constant-Adjustable-Step-Down-Converter/dp/B07MFXZ5SC
https://www.amazon.com/DZS-Elec-Adjustable-Synchronous-Rectification/dp/B07L8BTZW5
Either should work... Note that the second two may not have "isolated outputs" (i.e., the Vin negative is directly connected to Vout negative..
The lab supplies should be isolated outputs (from the AC input). However, you need to verify if the AC ground connection is also connected to the DC negative connection (should be, but don't know).
-Bill
https://www.amazon.com/s/ref=nb_sb_noss?url=search-alias=aps&field-keywords=adjustable+step+down+power+supply+20+amps
You could sub "step down" with "buck" and/or "converter".
Ebay seems to have "tons" of DC to DC power converters (if you do EBay).
One thing to watch out for... Many electronic power supplies (for computers and such) can include a "crowbar" on the output circuit (typically these supplies are not adjustable). A crowbar is set to short the output if the voltage goes to high (like a failed regulation circuit).
You do not want a "crowbar" protected output on a battery bank (aka, shorting the battery bank with the crowbar protection). For example, a 12 volt power supply may have a 14 volt crowbar.
I do not believe any of the "classes of supplies" I gave links for, have a crowbar circuit (no crowbar--ok/good for battery charging).
Many supplies are just voltage regulated... For battery charging, you want one that also can regulate current (i.e., limit to 20 amps from 0-2.3 volts, and limit voltage at 2.4 volts.
Converters/power supplies without current control, they will over current and be damaged--Or simply shutdown for over current.
-Bill
Second system 1890W 3 × 300W No name brand poly, 3×330 Sunsolar Poly panels, Morningstar TS 60 PWM controller, no name 2000W inverter 400Ah LFP 24V nominal battery with Daly BMS, used for water pumping and day time air conditioning.
5Kw Yanmar clone single cylinder air cooled diesel generator for rare emergency charging and welding.