4.35V is max charging voltage. 3.8V is nominal output voltage of both batteries. So the quantity of li-ion elements are the same in V987 and V3. V987 battery electricaly fits ideally.
THL W8 battery has nominal voltage 3.7V so max charging voltage limited to 4.2V. Batteries with 3.8V(V3, V987...) have 4.35 max charging voltage. Thats why W8 battery works much better (20%) than original. Inew V3 charging voltage is lower than recommended. So original battery not fully charging. But I thought that it was fixed in 1.0.4 ROM.
THL W8 battery has nominal voltage 3.7V so max charging voltage limited to 4.2V. Batteries with 3.8V(V3, V987...) have 4.35 max charging voltage. Thats why W8 battery works much better (20%) than original. Inew V3 charging voltage is lower than recommended. So original battery not fully charging. But I thought that it was fixed in 1.0.4 ROM.