Ll-ion SPS question

Hi ..

Is anybody know about Ll-ion SPS schedule ?

I mean Ll-ion SPS can be used in mix enviroment with  Lead-acid SPS on VMAX Micro code 5876.159.102 or over .

if so , from now on ... IF Lead-acid SPS has failed and need to be replaced , Ll-ion SPS can be sent over for replacement parts ?

And from now on ... ONly Ll-ion SPS will be sent over as replacement of SPS issue ?

thanks

aya