ADM691A datasheet figure 21 says the rechargeble battery.
The input power line is connected to battery line and Vout line in figure 21.
Is this description typo ?
I think that above connection is not needed because a recharge is done by (vout -vbatt/R) .
And, in the case of the other product ( for example ADM8690 ) ,
vbatt line and input power line are not connected in datasheet figure 25 rechargeble battery.
Please let me know yoru advice.