Need 6000mAh Doogee BAT21ZN1336000 Battery? This BAT21ZN1336000 battery 100% compatible with Doogee V20,V20 Pro. The battery is up to standard and fully compatible with original specifications. We offer 12 months warranty on our all batteries! During this period, if your battery fails, we will replace your BAT21ZN1336000 battery with a new one. All our batteries are certified by CE, UL, ROHS, ISO9001/9002 as safe products.