BL3707 Fly MC155 Replacement Battery 3.7V 2500mAh OVA37027 Self-test failure after battery swap

Self-test failure after battery swap on the S/5 Light Monitor

1V resting

One full discharge-charge cycle at standard current recalibrates the coulomb counter to the new curve and the shutdowns stop

This confirms the cell accepts load current and allows the charge controller to register the new cell's capacity before any scheduled compliance or duration test is due

BL3707 Fly MC155 Replacement Battery 3.7V 2500mAh OVA37027 Self-test failure after battery swapFly MC155 IQ4401 Era Energy 2 3. 7V Li ion Replacement Battery (BL3707) This is a 3. 7V, 2500mAh Li ion replacement battery for the Fly MC155, IQ4401, and Era Energy 2 smartphones. It uses the BL3707 part number and fits the original battery bay without modification. Capacity is 9. 25Wh matched to the product data, not estimated from web sources. MC155, IQ4401, and Era Energy 2 compatibility: All three models share the BL3707 footprint, the same 3. 7V