RE: Dell Precision 7710 Batteries - Do I have Lithium Polymer?
No, you do not have the correct battery.
Unfortunately, Dell never made this battery or discontinued it before shipping (yet as of mid-April 2016 they are still offering it on new systems. Ugh.) The 91Whr Lithium-Ion battery (much cheaper) is their replacement equivalent.
You and I have been OVERCHARGED for a battery that they don't have. Call Dell and GET A REFUND.