LG flagship phone battery life sucked in 2018, here is why - PhoneArena
Battery Life - The LG G8 Review: Solid, But Not Great
Battery for use with LG V40 THINQ
Amazon.com: Only for LG Stylo 4 & V40 ThinQ Battery Replacement, with Video Tutorial, BL-T37 Battery for LG Stylo 4 & V40 ThinQ, GREEN FUSION with Installation Instruction & Repair Toolkit :