I used to love this phone a lot, but lately the battery is terrible and even flashing the firmware to a new start doesnt help, Goodbye Razer : r/razerphone
Razer Phone 2 Support
HSABAT 0 Cycle 4500~5200mAh RC30-0215 RC30-0259 Battery for RAZER phone 1 / phone 2 High Quality Replacement Accumulator | Shopee Malaysia