hi Jason,
I used a multiturn pot to set RV1/RV2, I find the single turn pots are too coarse for comparators.
I dont mind anyone doing a pick and mix of my circuits, if by modifying it in anyway gets it doing the job for you, thats fine by me.
The reason I was concerned about the apparent low charge current etc, was the recharge time of the battery.
Ideally you want a float/standby battery back upto full charge asap.
You never know when the next mains out will occur.
I think the diode in the output of the battery when powering the LOAD is inefficient, you are losing 0.7V across this diode and all its doing is shunting the 39R current charge sense resistor so that the charge LED can light.
I would suggest a relook at that part.
Lets me know how it goes and if you want any areas reworking.
Just lets get the show on the road.
BTW: increasing the 1M0 feedback resistor will reduce the dead band [on/off] and likewise decreasing it will increase the dead band.
You may need to tweak the RV1 if you change the 1M0