The FJ-NP100-2500JM is a replacement 3.7V 2500mAh 9.3Wh battery for the UPRtek CV600 and MK350S.
Replacement Battery for CV600 (UPRtek)
Discontinued
Model: FJ-NP100-2500JM
Replacement Battery for CV600
3.7V, 2500 mAh, 9.3Wh
Compatible with the CV600, MK350S