Dell G2NPM is a four-cell lithium-ion laptop battery that provides a replacement power source for a compatible laptop. Its listed energy capacity is 68 Wh.
The electrical ratings are 7.6 V and 8500 mAh. The four-cell configuration and lithium-ion chemistry identify the battery type and its key specifications.
A manufacturer data sheet separately lists Dell part WJDPW under battery model 4GVMP with matching ratings of 7.6 V, 8500 mAh and 68 Wh. This is a related OEM reference; the G2NPM-specific details come from the product listing.