[Li3941T44P4h836249] ZTE Axon 20 4G & 5G A2121 Replacement BatteryCondition: Brand New Quality: OEM Original Quality Replacement Part Battery Model: Li3941T44P4h836249 4220mAh Compatible With: ZTE Axon 20 4G & 5G A2121 Description: If your ZTE won't turn on, is stuck in a boot loop, has a "service battery" warning, or simply won't hold a charge, this replacement battery may be what you need to fix it.