Chosen Solution
Hi, may you confirm the physical size of the Nexus 5 is identical to this one of the LG G2? Is it technically possible to buy the silicon battery of the G2 (3000mah) and install it in the N5 (same connector, same voltage aso)?
I4U, no you can not. The batteriy are different sizes LG G2 BL-T7 size 55mm wide X 67mm long Nexus 5 BL-T9 size 57mm wideX 60mm long and the battery cable is on a different position.
I don’t know about the physical size but looking at the LG G2 user teardown and the Nexus 5 featured teardown: Nexus 5 battery reference is BL-T9LG G2 battery reference is BL-T7mAh’s are differentFinally the battery connectors looks not at the same places I think we can conclude that you can’t install a G2 battery on a Nexus 5, sorry. However, there is Nexus 5 batteries available on internet. Look for “LG BL-T9” on google and don’t miss the Nexus 5 Battery Replacement guide on iFixit.
the size seems to be different